72-Hour Wrist Oxygen Monitor

Continuously track oxygen levels, pulse rates lasting 7 full nights

  Patented ring sensor: doesn't get in the way of your finger movement at night, and it stays put

  Smart gentle alert when oxygen level drops below preset threshold

  The unit can store 4 sessions data (up to 10 hrs for each)

  Print & share free 2s interval oximetry reports

$199.00$229.00

72-Hour Wrist Oxygen Monitor

Continuously track oxygen levels, pulse rates lasting 7 full nights

  Patented ring sensor: doesn't get in the way of your finger movement at night, and it stays put

  Smart gentle alert when oxygen level drops below preset threshold

  The unit can store 4 sessions data (up to 10 hrs for each)

  Print & share free 2s interval oximetry reports

$269.00$299.00

Medical-grade Accuracy in Measuring & Recording

Up to 72 hrs of battery life|2.5 hrs charging time

Blood Oxygen

Pulse Rate

Body Motion

Medical-grade accuracy in measuring & recording

Up to 72 hours of battery life|2.5 hours Charging Time

Blood Oxygen

Pulse Rate

Body Motion

Monitor and Evaluate Your Sleep

Monitor and Evaluate Your Sleep

Sleep analysis help you understand what's going on in your body while sleeping and see if disruptions are occurring.

Remind You to Breathe Well

A normal range of blood oxygen level is the key to starting a new day. Checkme™ O2 ensures you wake up with an energetic morning.
The device will BEEP and VIBRATE when your oxyegn level is lower, or your pulse rate is higher/lower than the threshold you preset, prompting you to change positions for better breathing.

Smart Vibration & Beep

Unlike the traditional sound alert system, it softly wakes you. So sharing a bed with your partner won't affect his or her rest.

You can turn the vibration on or off directly on the device.
Customize your notifications on the app: adjust the vibration intensity and threshold to make yourself comfortable. You can also turn on/off vibration and beep (bibibi).

Sleep analysis help you understand what's going on in your body while sleeping and see if disruptions are occurring. 

A Brand You Can Trust

Remind You to Breathe Well

A normal range of blood oxygen level is the key to starting a new day. Checkme™ O2 ensures you wake up with an energetic morning. 


The device will BEEP and VIBRATE when your oxyegn level is lower, or your pulse rate is higher/lower than the threshold you preset, prompting you to change positions for better breathing.

A Brand You Can Trust
A Brand You Can Trust

Smart Vibration & Beep

Unlike the traditional sound alert system, it softly wakes you. So sharing a bed with your partner won't affect his or her rest.


You can turn the vibration on or off directly on the device.

Customize your notifications on the appadjust the vibration intensity and threshold to make yourself comfortable. You can also turn on/off vibration and beep (bibibi).

A Great Aid for Monitoring Effectiveness of 

Your CPAP/APAP/BiPAP Therapy

Using this gadget from the beginning of your CPAP/APAP/BiPAP therapy is extremely helpful. It provides a comprehensive assessment of respiratory health, enabling you to clearly understand your progress and identify if any adjustments to your treatment are needed.

A Great Aid for Monitoring Effectiveness of 

Your CPAP/APAP/BiPAP Therapy

Using this gadget from the beginning of your CPAP/APAP/BiPAP therapy is extremely helpful. It provides a comprehensive assessment of respiratory health, enabling you to clearly understand your progress and identify if any adjustments to your treatment are needed.

Lightweight Freedom, Maximum Comfort

Unlike duckbill design, the ring free your finger for movement, so you’ll hardly know it’s there whether you're focusing on work or sleeping.

Lightweight Freedom, 

Maximum Comfort

Unlike duckbill design, the ring free your finger for movement, so you’ll hardly know it’s there whether you're focusing on work or sleeping.
A Brand You Can Trust

other

  • slip off easily

  • Numb The Finger

  • 12-Hour Battery Life

  • No Reminder

  • No PC Software

Checkme™ O2

  • stay fixed in finger

  • comfortable sensor

  • 72-Hour Battery Life

  • SpO2/PR Reminder

  • App & PC Available

In Case You Need Extra Accessories

other

  • slip off easily

  • numb the finger

  • 12-Hour Battery Life

  • no reminder

Checkme™ O2

  • stay fixed in finger

  • comfortable ring sensor

  • 72-Hour Battery Life

  • Smart SpO2/PR Reminder

other

  • slip off easily

  • numb the finger

  • 12-Hour Battery Life

  • no reminder

Checkme™ O2

  • stay fixed in finger

  • comfortable ring sensor

  • 72-Hour Battery Life

  • Smart SpO2/PR Reminder

Dynamic Integration of 

Data Analysis and Management Functionalities

Free app (integrated with Apple Health/Fitbit)/PC/Mac software

A Brand You Can Trust

High Resolution Charts


The app records an unlimited amount of data and provides high-resolution charts with data at 2-second intervals. You can annotate and export each data set for professional reference, making it crucial for capturing subtle physiological fluctuations for optimization.

Trend History Review

By reviewing weekly, monthly, and yearly data trends, you can easily see if your oxygen levels remain in a good range.
Meanwhile, it helps adjust your care and outcome trajectories, and rest assured your sleep health is in good hands.
A Brand You Can Trust

Dynamic Integration of Data Analysis and Management Functionalities

Free app (integrated with Apple Health/Fitbit)/PC/Mac software

A Brand You Can Trust

High Resolution Charts


The app records an unlimited amount of data and provides high-resolution charts with data at 2-second intervals. You can annotate and export each data set for professional reference, making it crucial for capturing subtle physiological fluctuations for optimization.

Trend History Review

By reviewing weekly, monthly, and yearly data trends, you can easily see if your oxygen levels remain in a good range.
Meanwhile, it helps adjust your care and outcome trajectories, and rest assured your sleep health is in good hands.
A Brand You Can Trust

Tech Specs

Weight (Main Unit)

0.63 oz / 18g


Device Dimensions

1.9'' x 1.0'' x 0.7'' 


Ring Perimeter

2.0'' - 3.0''


Wireless

Bluetooth 4.0 BLE 


Battery Life

Rechargeable lithium-polymer, 3.7 Vdc, 72 hours for typical use


Suitable for wrist sizes

13.5 cm to 21.5 cm

Degree Of Dust & Water Resistance

IP22 


Recorded Parameters

Oxygen levels, pulse rate, motion


Built-in Memory

4 records, up to 10 hours for each 


Compatible Computer System

Windows 7 or later

macOS 10.15.3 or later


Works With

iOS: Version 9.0 or later, iPhone 4s/iPad 3 or later

Android: Version 5.0 or later, with Bluetooth 4.0 BLE

Oxygen Level Range

70% - 100%


SpO2 Accuracy (Arms)

80-100%: ±2%;70-79%: ±3%


Pulse Rate Range

30 to 250 bpm


PR Accuracy

±2bpm or ±2%, whichever is greater


Sampling Interval

1 second 


Display Interval In App

2 seconds 



Tech Specs

Weight (Main Unit)
0.63 oz / 18g

Oxygen Level Range
70% - 100%

SpO2 Accuracy (Arms)
80-100%: ±2%; 70-79%: ±3%

Pulse Rate Range
30 to 250 bpm

PR Accuracy
±2bpm or ±2%, whichever is greater

Recorded Parameters
Oxygen levels, pulse rate, motion

Ring Perimeter
2.0'' - 3.0''

Sampling Interval
1 second 

Battery Life
Rechargeable lithium-polymer, 3.7 Vdc, 72 hours for typical use

Degree Of Dust & Water Resistance
IP22

Device Dimensions
1.9'' x 1.0'' x 0.7'' 

Works With
iOS: Version 9.0 or later, iPhone 4s/iPad 3 or later
Android: Version 5.0 or later, with Bluetooth 4.0 BLE

Compatible Computer System
Windows 7 or later
macOS 10.15.3 or later

Display Interval In App
2 seconds

Wireless
Bluetooth 4.0 BLE 

Built-in Memory
4 records, up to 10 hours for each

Suitable for wrist sizes
13.5 cm to 21.5 cm

In Case You Need Extra Accessories

Reviews, Q&A

Customer Reviews

Based on 120 reviews
77%
(92)
22%
(26)
2%
(2)
0%
(0)
0%
(0)
R
Rosemary M.
My wife Rosemary has stage 4cancer

It's a great device that my wife wears 24/7 she wears to go to sleep it vibrants when her oxygen levels drop so can regulate her oxygen day and night she's on oxygen 24/7 thank God for this wonderful device to make it easier for me since I'm my wife's care taker .

S
Slympicin
Excellent sleep oxygen monitor

This little monitor does the trick. It is not that intrusive so it doesn't get in the way of my arm moving at night, but the sensor also stays put (been using it for about a week now and haven't had it come off). The software for the smartphone calculates numbers like the amount of time the saturation is >95 and the number of drops 4% or greater during the measured period. With the software for the computer, you can save this in report AND data exports to allow you to analyze to your heart's content.

W
WT
Very helpful and informative

Glad that I bought the product. It gave me information about my quality of sleep and what I should do to get better sleep. Easy to use and reasonably comfortable to wear at sleep.

Suggestion to company: Enlarge the scale for the Motion chart as it wouldn't spike even when I am getting to and from the washroom.

G
Gary W.
Some peace of mind.

After my wife had departed and then come back to her body, she was put on oxygen again. Too much oxygen is what killed her in the first place, so I needed a device where I could monitor her daily status so I could adjust the flow meater to keep her from passing again. This device has an alert for low level of O2, but it should also have one for a high level of O2. At any rate I use the daily report so I can see her average throughout each night and I use the alarm if she goes below 87. I have been able to adjust the flow meaters on the two machines I have in the house and now have them each dialed in so she will average 93. The Checkme device has allowed me to accomplish that task.

S
Shirley d.
Best investment

My husband's fingers were so cold that we could not get an accurate O2 reading even with the finger tip professional pulse ox. Using the ring read it correctly. The alarm let me know when his oxygen got low so I could adjust it. You can set the level as to when the alarm goes off. If you have it connected to your phone, you can see the pattern for the duration that it is on per day. When I used it, I discovered that I was having sleep apnea with low oxygen quite a few times during the night. I had no idea this was happening, so this device may have saved my brain and heart from more damage. I highly recommend this device.

E
Eileen B.
Review

Much more comfortable for long term wear than the O2 ring

L
Lynn A.
I'm very impressed with the Checkme O2 Max!

The Checkme O2 Max from Wellue is a sophisticated device that is easy to use and I'm very impressed and grateful for its assistance.   I first was aware of apnea in my 30's when I would startle awake and sit up gasping for breath.  These episodes seemed to improve over the years (I'm now 75) and I  attributed occasional morning headaches to sinus/allergy issues though my husband of 30+ years has often mentioned having to nudge me to re-start my breathing in the night.  I was prompted to look up O2 monitoring apps after a recent middle of the night trip to the emergency department after waking with unaccountable rapid/forced breathing and subsequent confusion.  Although the cause wasn't identified, and I fully recovered, it did take about 10 hours for my B.P. to return to it's usual levels.  It wasn't until a few days later my husband suggested the incident could have been apnea-related.

I purchased Wellue's most expensive pulse oximeter because it wasn't much more money and offered the 2-minute sampling rather than 4 minutes, has a powerful (7 day) battery plus it had the option of vibration or sound alerts for low O2 levels.  I also discovered it could be set for a sound alert if the sensor comes off your thumb (only 2 times in my 13 days of records so far),  and that I can reduce the threshold for the alert below 90% (initially I was aware of all of the alerts while sleeping and so I reduced the alert threshold to 88% so my brain would be less likely to habituate to the vibration--and so I might sleep better).  The summary reports on the smart phone app are very helpful and I also keep the more detailed records on my desktop via the O2 Insight Pro app (Wellue kindly quickly supplied an improved cable for this latter application to work reliably every time--otherwise it was a bit hit or miss on my older PC).  My husband has noticed that my sleeping is now much quieter (I've always been a snorer and now apparently I rarely do)---and that I seem to sleep more deeply.  I feel refreshed on waking up after using the Wellue Checkme O2 max and am now mostly unaware of the vibration alerts. In glancing through the records, I'm wondering if there might be some sort of subtle training/learning going on since after one week the depth of the O2 drops appears to decrease, and this is even more apparent now after these almost two weeks of use. 

G
Gregg P.
Amazing device!

I would give this unit 6 stars if I could. Every CPAP machine should come with a device like this to help evaluate what you are doing right and what you are doing wrong. I am a side sleeper and it is uncomfortable to sleep in that position with the CPAP mask on. Over a couple weeks worth of monitoring I have concluded that my apnea is no worse sleeping on my side without CPAP than sleeping on my back with CPAP. What a relief to be able to pull my mask off halfway through the night and sleep the remainder of the night on my side without worrying. If I happen to have an apneic event and my O2 levels start to drop, then the monitor wakes me up before my level slips any further. It is very comfortable and I have no reservations about using this every night and I will from now on, especially when I do not have access to a CPAP like while traveling or backpacking etc.

J
Janice S.
O2Max

My husband mentioned I stop breathing during the night. Had two Sleep Apnea tests. Results are not serious enough for a CPAP. I didn’t really want to use that device if I didn’t have to. Doing various research and stumbled across this device. IT IS PERFECT for me. You are able to set vibrations (5 settings) to wake you during the night. I have it set at 85% and it WORKS. The app is very helpful and gives you a running daily report of how your night of sleep went. The support has been extremely helpful during the adjustment period. After 10 days I’m resting better, and my husband no longer has to poke me when he feels I’ve stopped breathing.

Hi Janice,

We're glad that your Checkme O2 Max is making a difference in your life. If you need more assistance or have questions in the future, please don't hesitate to reach us again!

Wish you and your family in good health.

Wellue

P
Philip A.
Provides Good CPAP Corroborating Info

I use the Checkme O2 Max to confirm the information provided my ResMed AirSense-10 CPAP machine. It is nice to be able to see that the info from the two devices almost always confirms each other's report. Yes, the device is a bit pricey, but its a real bargain compared to a local health supplier who charges $50 for a one-night recording oximeter test. To provide full disclosure, I am a hopeless addict to home healthcare electronic devices. ;)

Regulatory & Compliance

Laser medium: GaAIAs Semiconductor
Laser wavelength: 650nm±20nm / 808nm±20nm
Number of laser diodes: 6×808nm laser diodes, 6×650nm laser diodes
Maximum output power per 808nm laser diode: 150mW±20%
Maximum output power per 650nm laser diode: 5mW+20%
Total laser power: 930mW
Time setting: 5-30 minutes, 5 minutes as an interval
Battery capacity: 2600mAh
Battery Charging Time: 2~2.5 Hours

Disclaimer

( 1 ) DO NOT use this product if you are pregnant, have cancer, or have a hemorrhagic disease.

( 2 ) The aseptic operation must be strictly implemented in the treatment of patients with soft tissue infection. During the treatment, if any reactions such as dizziness, nausea, and fatigue, the treatment time should be reduced and gradually adapted.

( 3 ) The treatment will accelerate the body's metabolism, please drink water properly before and after treatment.

( 4 ) Long-term treatment of the body will produce tolerance and affect the treatment effect, please take interval rests strictly according to the requirements of the treatment course.

Free Shipping

Free shipping. The referenced transit time is 7-10 business days for shipping in the USA.

30-Day Money Back Guarantee

At any time within 30 days of receiving your order, you are not 100% satisfied, you may return it to us for a refund.
If you bought the product from www.getwellue.com, you can return it to us. Your payment card will be credited upon receipt of the returned merchandise. Any items damaged due to reasons not covered under warranty cannot be accepted back for refund under our 30 Day Money Back Guarantee.
If you are sure you want to return the goods, please contact us at first at support@getwellue.com. We provide 24/7 ticket and email support. Please contact us if you need assistance.

Reviews, Q&A

Customer Reviews

Based on 120 reviews
77%
(92)
22%
(26)
2%
(2)
0%
(0)
0%
(0)
R
Rosemary M.
My wife Rosemary has stage 4cancer

It's a great device that my wife wears 24/7 she wears to go to sleep it vibrants when her oxygen levels drop so can regulate her oxygen day and night she's on oxygen 24/7 thank God for this wonderful device to make it easier for me since I'm my wife's care taker .

S
Slympicin
Excellent sleep oxygen monitor

This little monitor does the trick. It is not that intrusive so it doesn't get in the way of my arm moving at night, but the sensor also stays put (been using it for about a week now and haven't had it come off). The software for the smartphone calculates numbers like the amount of time the saturation is >95 and the number of drops 4% or greater during the measured period. With the software for the computer, you can save this in report AND data exports to allow you to analyze to your heart's content.

W
WT
Very helpful and informative

Glad that I bought the product. It gave me information about my quality of sleep and what I should do to get better sleep. Easy to use and reasonably comfortable to wear at sleep.

Suggestion to company: Enlarge the scale for the Motion chart as it wouldn't spike even when I am getting to and from the washroom.

G
Gary W.
Some peace of mind.

After my wife had departed and then come back to her body, she was put on oxygen again. Too much oxygen is what killed her in the first place, so I needed a device where I could monitor her daily status so I could adjust the flow meater to keep her from passing again. This device has an alert for low level of O2, but it should also have one for a high level of O2. At any rate I use the daily report so I can see her average throughout each night and I use the alarm if she goes below 87. I have been able to adjust the flow meaters on the two machines I have in the house and now have them each dialed in so she will average 93. The Checkme device has allowed me to accomplish that task.

S
Shirley d.
Best investment

My husband's fingers were so cold that we could not get an accurate O2 reading even with the finger tip professional pulse ox. Using the ring read it correctly. The alarm let me know when his oxygen got low so I could adjust it. You can set the level as to when the alarm goes off. If you have it connected to your phone, you can see the pattern for the duration that it is on per day. When I used it, I discovered that I was having sleep apnea with low oxygen quite a few times during the night. I had no idea this was happening, so this device may have saved my brain and heart from more damage. I highly recommend this device.

E
Eileen B.
Review

Much more comfortable for long term wear than the O2 ring

L
Lynn A.
I'm very impressed with the Checkme O2 Max!

The Checkme O2 Max from Wellue is a sophisticated device that is easy to use and I'm very impressed and grateful for its assistance.   I first was aware of apnea in my 30's when I would startle awake and sit up gasping for breath.  These episodes seemed to improve over the years (I'm now 75) and I  attributed occasional morning headaches to sinus/allergy issues though my husband of 30+ years has often mentioned having to nudge me to re-start my breathing in the night.  I was prompted to look up O2 monitoring apps after a recent middle of the night trip to the emergency department after waking with unaccountable rapid/forced breathing and subsequent confusion.  Although the cause wasn't identified, and I fully recovered, it did take about 10 hours for my B.P. to return to it's usual levels.  It wasn't until a few days later my husband suggested the incident could have been apnea-related.

I purchased Wellue's most expensive pulse oximeter because it wasn't much more money and offered the 2-minute sampling rather than 4 minutes, has a powerful (7 day) battery plus it had the option of vibration or sound alerts for low O2 levels.  I also discovered it could be set for a sound alert if the sensor comes off your thumb (only 2 times in my 13 days of records so far),  and that I can reduce the threshold for the alert below 90% (initially I was aware of all of the alerts while sleeping and so I reduced the alert threshold to 88% so my brain would be less likely to habituate to the vibration--and so I might sleep better).  The summary reports on the smart phone app are very helpful and I also keep the more detailed records on my desktop via the O2 Insight Pro app (Wellue kindly quickly supplied an improved cable for this latter application to work reliably every time--otherwise it was a bit hit or miss on my older PC).  My husband has noticed that my sleeping is now much quieter (I've always been a snorer and now apparently I rarely do)---and that I seem to sleep more deeply.  I feel refreshed on waking up after using the Wellue Checkme O2 max and am now mostly unaware of the vibration alerts. In glancing through the records, I'm wondering if there might be some sort of subtle training/learning going on since after one week the depth of the O2 drops appears to decrease, and this is even more apparent now after these almost two weeks of use. 

G
Gregg P.
Amazing device!

I would give this unit 6 stars if I could. Every CPAP machine should come with a device like this to help evaluate what you are doing right and what you are doing wrong. I am a side sleeper and it is uncomfortable to sleep in that position with the CPAP mask on. Over a couple weeks worth of monitoring I have concluded that my apnea is no worse sleeping on my side without CPAP than sleeping on my back with CPAP. What a relief to be able to pull my mask off halfway through the night and sleep the remainder of the night on my side without worrying. If I happen to have an apneic event and my O2 levels start to drop, then the monitor wakes me up before my level slips any further. It is very comfortable and I have no reservations about using this every night and I will from now on, especially when I do not have access to a CPAP like while traveling or backpacking etc.

J
Janice S.
O2Max

My husband mentioned I stop breathing during the night. Had two Sleep Apnea tests. Results are not serious enough for a CPAP. I didn’t really want to use that device if I didn’t have to. Doing various research and stumbled across this device. IT IS PERFECT for me. You are able to set vibrations (5 settings) to wake you during the night. I have it set at 85% and it WORKS. The app is very helpful and gives you a running daily report of how your night of sleep went. The support has been extremely helpful during the adjustment period. After 10 days I’m resting better, and my husband no longer has to poke me when he feels I’ve stopped breathing.

Hi Janice,

We're glad that your Checkme O2 Max is making a difference in your life. If you need more assistance or have questions in the future, please don't hesitate to reach us again!

Wish you and your family in good health.

Wellue

P
Philip A.
Provides Good CPAP Corroborating Info

I use the Checkme O2 Max to confirm the information provided my ResMed AirSense-10 CPAP machine. It is nice to be able to see that the info from the two devices almost always confirms each other's report. Yes, the device is a bit pricey, but its a real bargain compared to a local health supplier who charges $50 for a one-night recording oximeter test. To provide full disclosure, I am a hopeless addict to home healthcare electronic devices. ;)

Regulatory & Compliance

The Checkme™ O2 Pulse Oximeter is a lightweight, portable health wrist oximeter for use in sleep labs, long-term care, hospitals, and home use. The device is indicated for use in measuring, displaying, storing, and transmitting functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate for adult patients. It is intended for spot-check and/ or continuous data collection, and not continuous monitoring. The data and results provided by this device are for pre-check screening purposes only and cannot be directly used for diagnosis or treatment.

The product is FDA cleared (FDA clearance link). An individual customer needs a prescription to purchase The Checkme™ O2. Please email the Rx to us at: support@getwellue.com.

What's in the Box?

  • Checkme™ O2 Wrist Oxygen Monitor
  • Data/Charging USB Cable
  • Finger Ring Sensor Cable
  • User guide

Free Shipping

We offer free shipping for Checkme™ O2 internationally. For countries and regions we can deliver to, the referenced transit time is 2-8 business days.

You can track your order status anytime here https://getwellue.com/pages/track-order. Please feel free to contact us if you have any questions or concerns. 

30-Day Money Back Guarantee

At any time within 30 days of receiving your order, you are not 100% satisfied, you may return it to us for a refund.
If you bought the product from www.getwellue.com, you can return it to us. Your payment card will be credited upon receipt of the returned merchandise. Any items damaged due to reasons not covered under warranty cannot be accepted back for refund under our 30 Day Money Back Guarantee.

If you are sure you want to return the goods, please contact us at first at support@getwellue.com. We provide 24/7 ticket and email support. Please contact us if you need assistance.

Compare with the Similar Products

Wearable Type

Wrist-worn

Ring

Wrist-worn

Vibration Triggers on Device or app

SpO2, Heart Rate

SpO2, Heart Rate

SpO2

Notification Method on Device

Vibration, Beep

Vibration


Vibration


Battery Life

Up to 72 Hours

Up to 16 Hours

Up to 16 Hours

Data Display Interval in App

2 seconds

4 seconds

4 seconds

Reviews, Q&A

Customer Reviews

Based on 120 reviews
77%
(92)
22%
(26)
2%
(2)
0%
(0)
0%
(0)
R
Rosemary M.
My wife Rosemary has stage 4cancer

It's a great device that my wife wears 24/7 she wears to go to sleep it vibrants when her oxygen levels drop so can regulate her oxygen day and night she's on oxygen 24/7 thank God for this wonderful device to make it easier for me since I'm my wife's care taker .

S
Slympicin
Excellent sleep oxygen monitor

This little monitor does the trick. It is not that intrusive so it doesn't get in the way of my arm moving at night, but the sensor also stays put (been using it for about a week now and haven't had it come off). The software for the smartphone calculates numbers like the amount of time the saturation is >95 and the number of drops 4% or greater during the measured period. With the software for the computer, you can save this in report AND data exports to allow you to analyze to your heart's content.

W
WT
Very helpful and informative

Glad that I bought the product. It gave me information about my quality of sleep and what I should do to get better sleep. Easy to use and reasonably comfortable to wear at sleep.

Suggestion to company: Enlarge the scale for the Motion chart as it wouldn't spike even when I am getting to and from the washroom.

G
Gary W.
Some peace of mind.

After my wife had departed and then come back to her body, she was put on oxygen again. Too much oxygen is what killed her in the first place, so I needed a device where I could monitor her daily status so I could adjust the flow meater to keep her from passing again. This device has an alert for low level of O2, but it should also have one for a high level of O2. At any rate I use the daily report so I can see her average throughout each night and I use the alarm if she goes below 87. I have been able to adjust the flow meaters on the two machines I have in the house and now have them each dialed in so she will average 93. The Checkme device has allowed me to accomplish that task.

S
Shirley d.
Best investment

My husband's fingers were so cold that we could not get an accurate O2 reading even with the finger tip professional pulse ox. Using the ring read it correctly. The alarm let me know when his oxygen got low so I could adjust it. You can set the level as to when the alarm goes off. If you have it connected to your phone, you can see the pattern for the duration that it is on per day. When I used it, I discovered that I was having sleep apnea with low oxygen quite a few times during the night. I had no idea this was happening, so this device may have saved my brain and heart from more damage. I highly recommend this device.

E
Eileen B.
Review

Much more comfortable for long term wear than the O2 ring

L
Lynn A.
I'm very impressed with the Checkme O2 Max!

The Checkme O2 Max from Wellue is a sophisticated device that is easy to use and I'm very impressed and grateful for its assistance.   I first was aware of apnea in my 30's when I would startle awake and sit up gasping for breath.  These episodes seemed to improve over the years (I'm now 75) and I  attributed occasional morning headaches to sinus/allergy issues though my husband of 30+ years has often mentioned having to nudge me to re-start my breathing in the night.  I was prompted to look up O2 monitoring apps after a recent middle of the night trip to the emergency department after waking with unaccountable rapid/forced breathing and subsequent confusion.  Although the cause wasn't identified, and I fully recovered, it did take about 10 hours for my B.P. to return to it's usual levels.  It wasn't until a few days later my husband suggested the incident could have been apnea-related.

I purchased Wellue's most expensive pulse oximeter because it wasn't much more money and offered the 2-minute sampling rather than 4 minutes, has a powerful (7 day) battery plus it had the option of vibration or sound alerts for low O2 levels.  I also discovered it could be set for a sound alert if the sensor comes off your thumb (only 2 times in my 13 days of records so far),  and that I can reduce the threshold for the alert below 90% (initially I was aware of all of the alerts while sleeping and so I reduced the alert threshold to 88% so my brain would be less likely to habituate to the vibration--and so I might sleep better).  The summary reports on the smart phone app are very helpful and I also keep the more detailed records on my desktop via the O2 Insight Pro app (Wellue kindly quickly supplied an improved cable for this latter application to work reliably every time--otherwise it was a bit hit or miss on my older PC).  My husband has noticed that my sleeping is now much quieter (I've always been a snorer and now apparently I rarely do)---and that I seem to sleep more deeply.  I feel refreshed on waking up after using the Wellue Checkme O2 max and am now mostly unaware of the vibration alerts. In glancing through the records, I'm wondering if there might be some sort of subtle training/learning going on since after one week the depth of the O2 drops appears to decrease, and this is even more apparent now after these almost two weeks of use. 

G
Gregg P.
Amazing device!

I would give this unit 6 stars if I could. Every CPAP machine should come with a device like this to help evaluate what you are doing right and what you are doing wrong. I am a side sleeper and it is uncomfortable to sleep in that position with the CPAP mask on. Over a couple weeks worth of monitoring I have concluded that my apnea is no worse sleeping on my side without CPAP than sleeping on my back with CPAP. What a relief to be able to pull my mask off halfway through the night and sleep the remainder of the night on my side without worrying. If I happen to have an apneic event and my O2 levels start to drop, then the monitor wakes me up before my level slips any further. It is very comfortable and I have no reservations about using this every night and I will from now on, especially when I do not have access to a CPAP like while traveling or backpacking etc.

J
Janice S.
O2Max

My husband mentioned I stop breathing during the night. Had two Sleep Apnea tests. Results are not serious enough for a CPAP. I didn’t really want to use that device if I didn’t have to. Doing various research and stumbled across this device. IT IS PERFECT for me. You are able to set vibrations (5 settings) to wake you during the night. I have it set at 85% and it WORKS. The app is very helpful and gives you a running daily report of how your night of sleep went. The support has been extremely helpful during the adjustment period. After 10 days I’m resting better, and my husband no longer has to poke me when he feels I’ve stopped breathing.

Hi Janice,

We're glad that your Checkme O2 Max is making a difference in your life. If you need more assistance or have questions in the future, please don't hesitate to reach us again!

Wish you and your family in good health.

Wellue

P
Philip A.
Provides Good CPAP Corroborating Info

I use the Checkme O2 Max to confirm the information provided my ResMed AirSense-10 CPAP machine. It is nice to be able to see that the info from the two devices almost always confirms each other's report. Yes, the device is a bit pricey, but its a real bargain compared to a local health supplier who charges $50 for a one-night recording oximeter test. To provide full disclosure, I am a hopeless addict to home healthcare electronic devices. ;)

Regulatory & Compliance

The Checkme™ O2 Pulse Oximeter is a lightweight, portable health wrist oximeter for use in sleep labs, long-term care, hospitals, and home use. The device is indicated for use in measuring, displaying, storing, and transmitting functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate for adult patients. It is intended for spot-check and/ or continuous data collection, and not continuous monitoring. The data and results provided by this device are for pre-check screening purposes only and cannot be directly used for diagnosis or treatment.

The product is FDA cleared(FDA clearance link). An individual customer needs a prescription to purchase The Checkme™ O2. Please email the Rx to us at: support@getwellue.com.

What's in the Box?

  • Checkme™ O2 Wrist Oxygen Monitor
  • Data/Charging USB Cable
  • Finger Ring Sensor Cable
  • User guide

Free Shipping

We offer free shipping for Checkme™ O2 internationally. For countries and regions we can deliver to, the referenced transit time is 2-8 business days.

You can track your order status anytime herehttps://getwellue.com/pages/track-order. Please feel free to contact us if you have any questions or concerns. 

30-Day Money Back Guarantee

At any time within 30 days of receiving your order, you are not 100% satisfied, you may return it to us for a refund.
If you bought the product from www.getwellue.com, you can return it to us. Your payment card will be credited upon receipt of the returned merchandise. Any items damaged due to reasons not covered under warranty cannot be accepted back for refund under our 30 Day Money Back Guarantee.

If you are sure you want to return the goods, please contact us at first at support@getwellue.com. We provide 24/7 ticket and email support. Please contact us if you need assistance.

Compare with the Similar Products

  • vs. O2Ring
  • vs. SleepU™

Wrist-worn

SpO2, Heart Rate Reminder

Vibration, Beep

Up to 72 Hrs Battery Life

2s Interval for Data Display

Ring

SpO2, Heart Rate Reminder

Vibration

Up to 16 Hrs Battery Life

4s Interval for Data Display

Wrist-worn

SpO2, Heart Rate Reminder

Vibration, Beep

Up to 72 Hrs Battery Life

2s Interval for Data Display

Wrist-worn

SpO2 Reminder

Vibration

Up to 16 Hrs Battery Life

4s Interval for Data Display

Reviews, Q&A

Customer Reviews

Based on 120 reviews
77%
(92)
22%
(26)
2%
(2)
0%
(0)
0%
(0)
R
Rosemary M.
My wife Rosemary has stage 4cancer

It's a great device that my wife wears 24/7 she wears to go to sleep it vibrants when her oxygen levels drop so can regulate her oxygen day and night she's on oxygen 24/7 thank God for this wonderful device to make it easier for me since I'm my wife's care taker .

S
Slympicin
Excellent sleep oxygen monitor

This little monitor does the trick. It is not that intrusive so it doesn't get in the way of my arm moving at night, but the sensor also stays put (been using it for about a week now and haven't had it come off). The software for the smartphone calculates numbers like the amount of time the saturation is >95 and the number of drops 4% or greater during the measured period. With the software for the computer, you can save this in report AND data exports to allow you to analyze to your heart's content.

W
WT
Very helpful and informative

Glad that I bought the product. It gave me information about my quality of sleep and what I should do to get better sleep. Easy to use and reasonably comfortable to wear at sleep.

Suggestion to company: Enlarge the scale for the Motion chart as it wouldn't spike even when I am getting to and from the washroom.

G
Gary W.
Some peace of mind.

After my wife had departed and then come back to her body, she was put on oxygen again. Too much oxygen is what killed her in the first place, so I needed a device where I could monitor her daily status so I could adjust the flow meater to keep her from passing again. This device has an alert for low level of O2, but it should also have one for a high level of O2. At any rate I use the daily report so I can see her average throughout each night and I use the alarm if she goes below 87. I have been able to adjust the flow meaters on the two machines I have in the house and now have them each dialed in so she will average 93. The Checkme device has allowed me to accomplish that task.

S
Shirley d.
Best investment

My husband's fingers were so cold that we could not get an accurate O2 reading even with the finger tip professional pulse ox. Using the ring read it correctly. The alarm let me know when his oxygen got low so I could adjust it. You can set the level as to when the alarm goes off. If you have it connected to your phone, you can see the pattern for the duration that it is on per day. When I used it, I discovered that I was having sleep apnea with low oxygen quite a few times during the night. I had no idea this was happening, so this device may have saved my brain and heart from more damage. I highly recommend this device.

E
Eileen B.
Review

Much more comfortable for long term wear than the O2 ring

L
Lynn A.
I'm very impressed with the Checkme O2 Max!

The Checkme O2 Max from Wellue is a sophisticated device that is easy to use and I'm very impressed and grateful for its assistance.   I first was aware of apnea in my 30's when I would startle awake and sit up gasping for breath.  These episodes seemed to improve over the years (I'm now 75) and I  attributed occasional morning headaches to sinus/allergy issues though my husband of 30+ years has often mentioned having to nudge me to re-start my breathing in the night.  I was prompted to look up O2 monitoring apps after a recent middle of the night trip to the emergency department after waking with unaccountable rapid/forced breathing and subsequent confusion.  Although the cause wasn't identified, and I fully recovered, it did take about 10 hours for my B.P. to return to it's usual levels.  It wasn't until a few days later my husband suggested the incident could have been apnea-related.

I purchased Wellue's most expensive pulse oximeter because it wasn't much more money and offered the 2-minute sampling rather than 4 minutes, has a powerful (7 day) battery plus it had the option of vibration or sound alerts for low O2 levels.  I also discovered it could be set for a sound alert if the sensor comes off your thumb (only 2 times in my 13 days of records so far),  and that I can reduce the threshold for the alert below 90% (initially I was aware of all of the alerts while sleeping and so I reduced the alert threshold to 88% so my brain would be less likely to habituate to the vibration--and so I might sleep better).  The summary reports on the smart phone app are very helpful and I also keep the more detailed records on my desktop via the O2 Insight Pro app (Wellue kindly quickly supplied an improved cable for this latter application to work reliably every time--otherwise it was a bit hit or miss on my older PC).  My husband has noticed that my sleeping is now much quieter (I've always been a snorer and now apparently I rarely do)---and that I seem to sleep more deeply.  I feel refreshed on waking up after using the Wellue Checkme O2 max and am now mostly unaware of the vibration alerts. In glancing through the records, I'm wondering if there might be some sort of subtle training/learning going on since after one week the depth of the O2 drops appears to decrease, and this is even more apparent now after these almost two weeks of use. 

G
Gregg P.
Amazing device!

I would give this unit 6 stars if I could. Every CPAP machine should come with a device like this to help evaluate what you are doing right and what you are doing wrong. I am a side sleeper and it is uncomfortable to sleep in that position with the CPAP mask on. Over a couple weeks worth of monitoring I have concluded that my apnea is no worse sleeping on my side without CPAP than sleeping on my back with CPAP. What a relief to be able to pull my mask off halfway through the night and sleep the remainder of the night on my side without worrying. If I happen to have an apneic event and my O2 levels start to drop, then the monitor wakes me up before my level slips any further. It is very comfortable and I have no reservations about using this every night and I will from now on, especially when I do not have access to a CPAP like while traveling or backpacking etc.

J
Janice S.
O2Max

My husband mentioned I stop breathing during the night. Had two Sleep Apnea tests. Results are not serious enough for a CPAP. I didn’t really want to use that device if I didn’t have to. Doing various research and stumbled across this device. IT IS PERFECT for me. You are able to set vibrations (5 settings) to wake you during the night. I have it set at 85% and it WORKS. The app is very helpful and gives you a running daily report of how your night of sleep went. The support has been extremely helpful during the adjustment period. After 10 days I’m resting better, and my husband no longer has to poke me when he feels I’ve stopped breathing.

Hi Janice,

We're glad that your Checkme O2 Max is making a difference in your life. If you need more assistance or have questions in the future, please don't hesitate to reach us again!

Wish you and your family in good health.

Wellue

P
Philip A.
Provides Good CPAP Corroborating Info

I use the Checkme O2 Max to confirm the information provided my ResMed AirSense-10 CPAP machine. It is nice to be able to see that the info from the two devices almost always confirms each other's report. Yes, the device is a bit pricey, but its a real bargain compared to a local health supplier who charges $50 for a one-night recording oximeter test. To provide full disclosure, I am a hopeless addict to home healthcare electronic devices. ;)

Regulatory & Compliance

The Checkme™ O2 Pulse Oximeter is a lightweight, portable health wrist oximeter for use in sleep labs, long-term care, hospitals, and home use. The device is indicated for use in measuring, displaying, storing, and transmitting functional oxygen saturation of arterial hemoglobin (SpO2) and pulse rate for adult patients. It is intended for spot-check and/ or continuous data collection, and not continuous monitoring. The data and results provided by this device are for pre-check screening purposes only and cannot be directly used for diagnosis or treatment.

The product is FDA cleared (FDA clearance link). An individual customer needs a prescription to purchase The Checkme™ O2. Please email the Rx to us at: support@getwellue.com.

What's in the Box?

  • Checkme™ O2 Wrist Oxygen Monitor
  • Data/Charging USB Cable
  • Finger Ring Sensor Cable
  • User guide

Free Shipping

We offer free shipping for Checkme™ O2 internationally. For countries and regions we can deliver to, the referenced transit time is 2-8 business days.

You can track your order status anytime here https://getwellue.com/pages/track-order. Please feel free to contact us if you have any questions or concerns. 

30-Day Money Back Guarantee

At any time within 30 days of receiving your order, you are not 100% satisfied, you may return it to us for a refund.
If you bought the product from www.getwellue.com, you can return it to us. Your payment card will be credited upon receipt of the returned merchandise. Any items damaged due to reasons not covered under warranty cannot be accepted back for refund under our 30 Day Money Back Guarantee.

If you are sure you want to return the goods, please contact us at first at support@getwellue.com. We provide 24/7 ticket and email support. Please contact us if you need assistance.

Tech Specs

Weight (Main Unit)

0.63 oz / 18g


Device Dimensions

1.9'' x 1.0'' x 0.7'' 


Ring Perimeter

2.0'' - 3.0''


Wireless

Bluetooth 4.0 BLE 


Battery Life

Rechargeable lithium-polymer, 3.7 Vdc, 72 hours for typical use

Degree Of Dust & Water Resistance

IP22 


Recorded Parameters

Oxygen levels, pulse rate, motion 


Compatible Computer System

Windows 7/8/10

macOS 10.15.3 or later


Works With

iOS: Version 9.0 or later, iPhone 4s/iPad 3 or later

Android: Version 5.0 or later, with Bluetooth 4.0 BLE

Oxygen Level Range

70% - 100%


Pulse Rate Range

30 to 250 bpm


Sampling Interval

1 second 


Display Interval In App

2 seconds 


Built-in Memory

4 records, up to 10 hours for each



Compare with the Similar Products

Wearable Type

Wrist-worn

Ring

Wrist-worn

Vibration Triggers on Device or app

SpO2, Heart Rate

SpO2, Heart Rate

SpO2

Notification Method on Device

Vibration, Beep

Vibration


Vibration


Battery Life

Up to 72 Hours

Up to 16 Hours

Up to 16 Hours

Data Display Interval in App

2 seconds

4 seconds

4 seconds

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Customize your notifications on the app: adjust the vibration intensity and threshold to make yourself comfortable. You can also turn on/off vibration and beep (bibibi).

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Tech Specs

Weight (Main Unit)

0.63 oz / 18g


Device Dimensions

1.9'' x 1.0'' x 0.7'' 


Ring Perimeter

2.0'' - 3.0''


Wireless

Bluetooth 4.0 BLE 


Battery Life

Rechargeable lithium-polymer, 3.7 Vdc, 72 hours for typical use

Oxygen Level Range

70% - 100%


SpO2 Accuracy (Arms)

80-100%: ±2%; 70-79%: ±3%


Pulse Rate Range

30 to 250 bpm


PR Accuracy

±2bpm or ±2%, whichever is greater


Sampling Interval

1 second 


Display Interval In App

2 seconds 


Built-in Memory

4 records, up to 10 hours for each


Suitable for wrist sizes

13.5 cm to 21.5 cm

Degree Of Dust & Water Resistance

IP22 


Recorded Parameters

Oxygen levels, pulse rate, motion 


Compatible Computer System

Windows 7 or later

macOS 10.15.3 or later


Works With

iOS: Version 9.0 or later, iPhone 4s/iPad 3 or later

Android: Version 5.0 or later, with Bluetooth 4.0 BLE

In Case You Need Extra Accessories

Reviews, Q&A

Customer Reviews

Based on 120 reviews
77%
(92)
22%
(26)
2%
(2)
0%
(0)
0%
(0)
R
Rosemary M.
My wife Rosemary has stage 4cancer

It's a great device that my wife wears 24/7 she wears to go to sleep it vibrants when her oxygen levels drop so can regulate her oxygen day and night she's on oxygen 24/7 thank God for this wonderful device to make it easier for me since I'm my wife's care taker .

S
Slympicin
Excellent sleep oxygen monitor

This little monitor does the trick. It is not that intrusive so it doesn't get in the way of my arm moving at night, but the sensor also stays put (been using it for about a week now and haven't had it come off). The software for the smartphone calculates numbers like the amount of time the saturation is >95 and the number of drops 4% or greater during the measured period. With the software for the computer, you can save this in report AND data exports to allow you to analyze to your heart's content.

W
WT
Very helpful and informative

Glad that I bought the product. It gave me information about my quality of sleep and what I should do to get better sleep. Easy to use and reasonably comfortable to wear at sleep.

Suggestion to company: Enlarge the scale for the Motion chart as it wouldn't spike even when I am getting to and from the washroom.

G
Gary W.
Some peace of mind.

After my wife had departed and then come back to her body, she was put on oxygen again. Too much oxygen is what killed her in the first place, so I needed a device where I could monitor her daily status so I could adjust the flow meater to keep her from passing again. This device has an alert for low level of O2, but it should also have one for a high level of O2. At any rate I use the daily report so I can see her average throughout each night and I use the alarm if she goes below 87. I have been able to adjust the flow meaters on the two machines I have in the house and now have them each dialed in so she will average 93. The Checkme device has allowed me to accomplish that task.

S
Shirley d.
Best investment

My husband's fingers were so cold that we could not get an accurate O2 reading even with the finger tip professional pulse ox. Using the ring read it correctly. The alarm let me know when his oxygen got low so I could adjust it. You can set the level as to when the alarm goes off. If you have it connected to your phone, you can see the pattern for the duration that it is on per day. When I used it, I discovered that I was having sleep apnea with low oxygen quite a few times during the night. I had no idea this was happening, so this device may have saved my brain and heart from more damage. I highly recommend this device.

E
Eileen B.
Review

Much more comfortable for long term wear than the O2 ring

L
Lynn A.
I'm very impressed with the Checkme O2 Max!

The Checkme O2 Max from Wellue is a sophisticated device that is easy to use and I'm very impressed and grateful for its assistance.   I first was aware of apnea in my 30's when I would startle awake and sit up gasping for breath.  These episodes seemed to improve over the years (I'm now 75) and I  attributed occasional morning headaches to sinus/allergy issues though my husband of 30+ years has often mentioned having to nudge me to re-start my breathing in the night.  I was prompted to look up O2 monitoring apps after a recent middle of the night trip to the emergency department after waking with unaccountable rapid/forced breathing and subsequent confusion.  Although the cause wasn't identified, and I fully recovered, it did take about 10 hours for my B.P. to return to it's usual levels.  It wasn't until a few days later my husband suggested the incident could have been apnea-related.

I purchased Wellue's most expensive pulse oximeter because it wasn't much more money and offered the 2-minute sampling rather than 4 minutes, has a powerful (7 day) battery plus it had the option of vibration or sound alerts for low O2 levels.  I also discovered it could be set for a sound alert if the sensor comes off your thumb (only 2 times in my 13 days of records so far),  and that I can reduce the threshold for the alert below 90% (initially I was aware of all of the alerts while sleeping and so I reduced the alert threshold to 88% so my brain would be less likely to habituate to the vibration--and so I might sleep better).  The summary reports on the smart phone app are very helpful and I also keep the more detailed records on my desktop via the O2 Insight Pro app (Wellue kindly quickly supplied an improved cable for this latter application to work reliably every time--otherwise it was a bit hit or miss on my older PC).  My husband has noticed that my sleeping is now much quieter (I've always been a snorer and now apparently I rarely do)---and that I seem to sleep more deeply.  I feel refreshed on waking up after using the Wellue Checkme O2 max and am now mostly unaware of the vibration alerts. In glancing through the records, I'm wondering if there might be some sort of subtle training/learning going on since after one week the depth of the O2 drops appears to decrease, and this is even more apparent now after these almost two weeks of use. 

G
Gregg P.
Amazing device!

I would give this unit 6 stars if I could. Every CPAP machine should come with a device like this to help evaluate what you are doing right and what you are doing wrong. I am a side sleeper and it is uncomfortable to sleep in that position with the CPAP mask on. Over a couple weeks worth of monitoring I have concluded that my apnea is no worse sleeping on my side without CPAP than sleeping on my back with CPAP. What a relief to be able to pull my mask off halfway through the night and sleep the remainder of the night on my side without worrying. If I happen to have an apneic event and my O2 levels start to drop, then the monitor wakes me up before my level slips any further. It is very comfortable and I have no reservations about using this every night and I will from now on, especially when I do not have access to a CPAP like while traveling or backpacking etc.

J
Janice S.
O2Max

My husband mentioned I stop breathing during the night. Had two Sleep Apnea tests. Results are not serious enough for a CPAP. I didn’t really want to use that device if I didn’t have to. Doing various research and stumbled across this device. IT IS PERFECT for me. You are able to set vibrations (5 settings) to wake you during the night. I have it set at 85% and it WORKS. The app is very helpful and gives you a running daily report of how your night of sleep went. The support has been extremely helpful during the adjustment period. After 10 days I’m resting better, and my husband no longer has to poke me when he feels I’ve stopped breathing.