O2 Score is a measure of oxygen shortage during whole sleep. It combines frequency, duration, and depth of oxygen drops. A higher score means oxygen is richer. If it's yellow or red, please ask your doctor for advice.
O2Ring
Continuous Oxygen Monitor
Oximeter
Tracking Continuous Oxygen Level and Heart Rate
*This device is for General Wellness use only and not intended for medical use.
O2Ring Oximeter
Continuous Oxygen Monitor
Tracking Continuous Oxygen Level and Heart Rate
*This device is for General Wellness use only and not intended for medical use.
227,435+
Consumers benefit from O2Ring
800+
Satisfied customers and
five-star reviews
30
30-Days money back guarantee
bUY ONE GET ONE 50% OFF
Always have one on your finger, get 24-hour continuous monitoring.
Overnight Tracking
Track The Trends of Your Overnight Oxygen Levels & Heart Rate
Built-in Memory
Work Independently or Together with app
Seamless Share on Sleep Analysis
Share PDF/CSV Analysis & Trend Chart Unlimitedly
Built-in Silent Vibrator
Adjustable Vibration Alert When Abnormal Body Index Is Detected
Proven-Accuracy
More Sensitive on Your Body Index and More Accurate Across All Finger Size
Long Battery Life
Rechargeable Battery, Lasts 12-16 Hours
Comfortable Wearing
Weighs Only 15 grams，Competely Free Your Finger
Multi-User Management
Support mutiple information up to 10 members, the health condition of the whole family is at your fingertips.
A Brand You Can Trust
The 7 Best Pulse Oximeters of 2023 for At-Home Use
Customers found that it improved their sleep quality
The 6 Best Pulse Oximeters of 2023
The Wellue O2Ring is specifically designed to monitor oxygen level activity
One of our patients has been using O2Ring and found that it alerts them to Post COVID silent hypoxia episodes that are causing brain damage in him. Before he started wearing the ring, his providers had no idea how that was happening.
Wellue uses the same type of technology that hospitals do, which makes me feel extra confident that their products are of the utmost quality and accuracy.
The O2 Ring is actually the smallest, ‘medical-grade’ oximeter that can operate continuously throughout whole nighty.
Wearing a pulse oximeter at night is a perfect way to monitor the low oxygen episodes.
I’ve determined that the Wellue O2Ring is the best-in-class option for overnight oxygen monitoring.
If you have any concerns about your recordings, it’s easy to send them to your doctor.
Medical Technologies Open Doors to New Possibilities
Medically reviewed by Reza Samad, MD
Updated on January 10, 2023
Health Picks O2Ring as The 6 Best Pulse Oximeters of 2023
It’s easy to use, app-connected, and offers a ring-style fit for an even more comfortable testing experience...
Track Your Oxygen Level Every Second
Wearing the O2 ring, it will automatically start to track your overnight blood oxygen saturation, heart rate and body movement continuously.
Real-Time Data Management
Built in memory, works stand-alone, your information is always a quick glance away with a larger display. O2Ring stores 4 groups of 10-hour data. When the device is connected to the APP via Bluetooth, the data will be uploaded automatically.
The Ability to Prompt for A Better O2
Up to 16 hours of continuous night monitoring, vibration prompt when O2 level or heart rate exceeds the preset threshold. Keep you aware of your sleep patterns and take control of your night.
Detailed PC Sleep Report Analysis
Free PC software provides graphic sleep O2, PR reports and trends of data. Your sleep report shows the statistics of oxygen levels and pulse rates, making it an excellent reference for the home sleep study. You can easily print/email to share PDF/SCV format personal overnight oximetry reports with your sleep specialist.
*Support on Windows & MacOS.
Upgrade Multi-User Management
The updated app adds the function of multi-user data storage and management. Each account could support mutiple information up to 10 members, the health condition of the whole family is at your fingertips.
Transmissive Pulse Oximetry
Wellue O2Ring uses intelligent SOC chip, combined with anti-interference filtering technology. Its accuracy is within 2%, the calibration ranges from SpO2 70-99%, Pulse Rate 30- 250 bpm,SpO2 Accuracy 80%-99%: ±2%, 70%-79%: ±3% ; Pulse Rate Accuracy ±2bpm or ±2%.
Track Your Oxygen Level Every Second
Real-Time Data Management
Built in memory, works stand-alone, your information is always a quick glance away with a larger display. O2Ring stores 4 groups of 10-hour data. When the device is connected to the APP via Bluetooth, the data will be uploaded automatically.
The Ability to Prompt for A Better O2
Up to 16 hours of continuous night monitoring, vibration prompt when O2 level or heart rate exceeds the preset threshold. Keep you aware of your sleep patterns and take control of your night.
A Brand You Can Trust
Best Ring: Wellue O2Ring Continuous Ring Oxygen Monitor
Customers found that it improved their sleep quality
The Wellue O2Ring is specifically designed to monitor oxygen level activity
One of our patients has been using O2Ring and found that it alerts them to Post COVID silent hypoxia episodes that are causing brain damage in him. Before he started wearing the ring, his providers had no idea how that was happening.
Wellue uses the same type of technology that hospitals do, which makes me feel extra confident that their products are of the utmost quality and accuracy.
The O2 Ring is actually the smallest, ‘medical-grade’ oximeter that can operate continuously throughout whole nighty.
Wearing a pulse oximeter at night is a perfect way to monitor the low oxygen episodes.
I’ve determined that the Wellue O2Ring is the best-in-class option for overnight oxygen monitoring.
If you have any concerns about your recordings, it’s easy to send them to your doctor.
Medical Technologies Open Doors to New Possibilities
Detailed PC Sleep Report Analysis
Free PC software provides graphic sleep O2, PR reports and trends of data. Your sleep report shows the statistics of oxygen levels and pulse rates, making it an excellent reference for the home sleep study. You can easily print/email to share PDF/SCV format personal overnight oximetry reports with your sleep specialist.
*Support on Windows & MacOS.
Transmissive Pulse Oximetry
Wellue O2Ring uses intelligent SOC chip, combined with anti-interference filtering technology. Its accuracy is within 2%, the calibration ranges from SpO2 70-99%, Pulse Rate 30- 250 bpm,SpO2 Accuracy 80%-99%: ±2%, 70%-79%: ±3% ; Pulse Rate Accuracy ±2bpm or ±2%.
New Collection
Upgrade Multi-User Management
The updated app adds the function of multi-user data storage and management. Each account could support mutiple information up to 10 members, the health condition of the whole family is at your fingertips.
Wellue O2Ring uses transmissive oximetry technology, which is more sensitive on your body index and more accurate across all finger size. The calibration ranges from SpO2 70-99%, Pulse Rate 30- 250 bpm,SpO2 Accuracy 80%-99%: ±2%, 70%-79%: ±3% ; Pulse Rate Accuracy ±2bpm or ±2%.
Real-Time Data Display
History Data and Detailed Trends
Get Detailed Analysis and Trends
Wear O2Ring on your daily basis, for either getting quick readings by spot check or wearing for hours to continuously and accurately track blood oxygen levels (SpO2) and pulse rate (PR). Your data will be displayed in the App in real time.
Our app provides users with unlimited storage, you can easily manage your history data and get detailed trends, the historical data reveals how your body performs dynamically over certain periods of time.
Oxygen levels below the normal range
Oxygen levels within the normal range
Understand Your Hypoxic Events Easily
The report shows how long your oxygen is below 90%, how many times during a night your oxygen drops over 4%, and more. You can also zoom into the chart to see more details. O2Ring focus in your key vitals like Average O2, Lowest O2, oxygen drop times per hour to determine the O2 score of your body. The report shows how long your oxygen is below 90%; how many times during a night your oxygen drops over 4%. You can also zoom into the chart to see more details, such as the exact value when dropping happens.
Silent Vibration Alarm, Save Your Life From Hypoxic Events
LOW OXYGEN LEVELS TRIGGER VIBRATION
When the blood oxygen level is lower than your preset threshold, an adjustable and gentle vibration alarm will be triggered to remind the user to sleep on the other side in order to breathe well again.
It acts as a safety net for CPAP failure and sleep apnea, and encourages you to shift your sleep position to help bring those levels back into the proper range. Effectively reduce the risk of sleeping on a low and unhealthy blood oxygen level.
Note： The alarming function can be turned off or adjust
Best Aid to Monitor the Effectiveness of Your CPAP/APAP/BiPAP Therapy
Buy Together
What Our Customers Say
Steven Griff
Highly recommended
"After spending 3 weeks in the hospital with Covid, after release and home on O2 ring has proven to be a great asset sleeping at night the downloaded graph in the morning provides me with a wealth of information. Now it will wake me when or if my oxygen level drops below a preset warning."
Pankaj Srivastava
The One Gadget that you need today
"I am Pankaj Srivastava, a fitness and health enthusiast for which I was suggested by the doctors of Clinicspots before going on the trek to Kedarnath and while traveling to high altitude regions; to use O2ring wearable pulse oximeter by Wellue for keeping track of my blood oxygen levels, through the monitor in my device which was portable everywhere, and the ring which is very comfortable to wear even at my office and during my exercise. It has helped me not only in tracking my levels but also help me storing the data on my devices and also helped me to know when my oxygen levels have fallen or are high. I would highly recommend this oximeter if you are traveling too because of its battery life and comfort. It can also be used by the elderly which can help you to track their blood oxygen levels, heart rate, and body movements. Wonderful Initiative by Wellue especially for people like me."
Ron G.
Exactly what I wanted
"I'm a pilot and wanted to get an oximeter to replace my aging finger clip-style oximeter. A couple of features I really like are the vibrating alarm, which I set to high when flying to alert me before hypoxia sets in. And then also - no more batteries to replace. My old unit required a CR2 battery, but this unit lasts longer than I can fly in a day, and then some. I noted that it tracks my oxygen well as I climb to altitude in my unpressurized airplane and had a little fun experimenting with adjusting my oxygen bottle feed at 12,500' MSL from 90% to 98% blood O2 level.
It appears to be very good quality and does exactly what I need it to. Compared to my old unit, my O2 readings are identical, so either they're both off or both accurate, but the readings seem reasonable and consistent and the heart rate sensor matches my Polaris HR belt, so that checks..."
Benjie
So happy to have bought one
"As part of my COVID-19 recovery, I need to monitor my O2 & PR as much as possible. O2Ring gave me that option plus some. The Reports were a big plus to my needs. As well as the alarm feature. I just wished it could be used in the shower and also use it while charging so I could gather a complete 24hrs stat of my system. I recommend this product for post-Covid patients still having O2 stability concerns and for Sleep Apnea patients to learn more about their illness."
Kenechi Munonyedi
A very handy and informative gadget, very useful
"Post- COVID and in the recovery phase, I needed to keep an eye on Oxygen Saturation levels and Heart Rate. That's where the O2 ring comes in. It's very useful to know how these levels change with different tasks and the mobile and desktop apps provide a lot of information and trends. Customer Service has been responsive and helpful. I would highly recommend it."
Barb
Amazing device, better than expected!
"I sleep on my back because of other medical issues and I snore, so my results weren't quite as good as I'd hoped but they are improving. The app report for each use is very informative, detailed, and visually well done. The graphs are very easy to expand and view even for short time periods. The pdf reports are also well done, easy to make notations on, and a wonderful record of my O2 status each night and over time.
The ring is very comfortable to wear. I wear it on my index finger and haven't had any issues with it catching on the sheets or any other problems.
The O2Ring was a little more than I was initially looking for, but I am very happy that I bought it because it provides a lot more information about my health status when sleeping. All pros and no cons after nearly a month of nightly use."
Mark Secord
Great product--and the company stands behind it.
"We bought an O2 ring about 8 months ago and have used it frequently to monitor my wife's SO2 levels--day and night. Having the graphs showing results over time is very helpful. She has been prescribed oxygen at night but it's inconvenient often and we wanted to get data on how much SO2 levels drop. The ring provides perfect data for assessing this, as well as how she does when she exerts herself during exercise during the day. We've shared data with her pulmonologist and he's impressed.
Several weeks ago the display on the device went dark. Wellue responded to my email inquiry promptly and had me do some interventions. When these failed to work they sent me a new O2 ring. Minimal hassle.
I don't give 5-star ratings easily but this one was easy."
Why Ours?
Traditional
Clamp-Like Sensor
Wellue O2 Ring
Smart Health Watch
Technology
Transmissive oximetry
Transmissive oximetry, using intelligent SOC chip, combined with anti-interference filtering technology
Reflective technology on wrist, poor signal
Measuring
Real-time data display，spot-check
Real-time data display, both spot-check and continuous monitor
Have to hold still for up to 15 seconds to get a reading
Data Recording Interval
In 10 seconds usually
4 seconds, capture every hypoxia event
1 hour or a day, miss most hypoxia events
Vibration Prompt of Abnormal Oxygen Levels or Heart Rate
/
Yes, encourage you to shift sleep position to help users breathe well again
/
Reports
/
Yes，professional report reveals health insights
/
Long Term Wearing
No, easily to slip and finger gets numb easily
Yes, stay fixed on finger, wearing it like wearing nothing
Yes
Traditional
Clamp-Like Sensor
Wellue O2 Ring
Smart Health Watch
Technology
Transmissive oximetry
Transmissive oximetry, using intelligent SOC chip, combined with anti-interference filtering technology
Reflective technology on wrist, poor signal
Measuring
Real-time data display，spot-check
Real-time data display, both spot-check and continuous monitor
Have to hold still for up to 15 seconds to get a reading
Data Recording Interval
In 10 seconds usually
4 seconds, capture every hypoxia event
1 hour or a day, miss most hypoxia events
Vibration Prompt of Abnormal Oxygen Levels or Heart Rate
/
Yes, encourage you to shift sleep position to help users breathe well again
/
Reports
/
Yes，professional report reveals health insights
/
Long Term Wearing
No, easily to slip and finger gets numb easily
Yes, stay fixed on finger, wearing it like wearing nothing
Yes
Intuitive Report Reveals Wellness Insights
Detailed Analysis and Trends
Wear O2Ring on your daily basis, for either getting quick readings by spot check or wearing for hours to continuously and accurately track blood oxygen levels (SpO2) and pulse rate (PR). Your data will be displayed in the App in real time.
Our app provides users with unlimited storage, you can easily manage your history data and get detailed trends, the historical data reveals how your body performs dynamically over certain periods of time.
Track The Data Matters Easily
The report shows how long your oxygen is below 90%, how many times during a night your oxygen drops over 4%, and more. You can also zoom into the chart to see more details. O2Ring focus in your key vitals like Average O2, Lowest O2, oxygen drop times per hour to determine the O2 score of your body.
Oxygen levels below the normal
range
Oxygen levels within the normal
range
Export Your Data
Export detailed reports in PDF, CSV, or Binary, easily share or print via free Windows PC/Mac App.
Customize Your Vibration
You can turn off the alarming function or adjust the intensity of vibration separately for the oxygen level and pulse rate. You can also set your own threshold on the smartphone.
See How Easy it is
1
Easy to Charge
Built-in rechargeable battery, easy to charge with USB interface, lasts 12-16 hours for typical use.
2
One Tap, You'll Know
Tap the circle key to know your oxygen level and heart rate. The right column shows how strong your heart is beating. The higher the column, the stronger your pulse.
3
Sync Data Seamless
Your records are ready while you take it off. Just upload data to the app & PC software seamlessly, and share it easily.
Free APP for IOS&ANDROID
Integration with Apple Health
Technical Specifications
- PHYSICAL DETAILS
- SPO2 & PR PARAMETER
- WHAT'S IN THE BOX
MODEL
O2Ring
RING PERIMETER
2.0'' - 3.2''/ 50-82mm
WEIGHT
0.53 oz / 15g
DEVICE DIMENSIONS
1.5'' x 1.2'' x 1.5''
DEGREE OF DUST & WATER RESISTANCE
IP24
BATTERY LIFE
Rechargeable lithium-polymer, 3.7 Vdc; 12-16 hours for typical use
CHARGE TIME
2-3 hours
WIRELESS
Bluetooth 4.0 BLE
BUILT-IN MEMORY
4 sessions, up to 10 hours for each session
RECORDED PARAMETERS
Oxygen levels, pulse rate, motion
OXYGEN LEVEL RANGE
70%-99%
PULSE RATE RANGE
30 to 250 bpm
SPO2 ACCURACY
80%-99%: ±2% 70%-79%: ±3%
PULSE RATE ACCURACY
±2bpm or ±2%
MEASURE INTERVAL
1S
DISPLAY INTERVAL IN APP DATA CHART
4S
COMPATIBLE COMPUTER SYSTEM
Windows 7/8/10;
macOS 10.15.3 or above
COMPATIBLE WITH
iOS 9.0 or above, iPhone 4s/iPad 3 or above; Android 5.0 or above, with Bluetooth 4.0 BLE
What's Included
Wellue® O2Ring™ Continuous Ring Oxygen Monitor
Micro USB cable
User guide
Frequently Asked Questions
What is O2 Score?
Do I need to pair Bluetooth?
DO NOT PAIR in the system settings of your phone. Make sure the Bluetooth is enabled on your phone and device’s battery is not out.
Why do I need to allow Location access for Android?
With android phone, you need to allow Location access to make Bluetooth work. We DO NOT collect your location data.If you have refused the permission, you can try following steps to allow the access:
1)Reboot your phone;
2)Turn on “location”on your phone;
3)System settings -> Apps-> ViHealth, allow location access.
Why I can’t connect device with App after updating iOS system software?
If you can’t connect your device after updating iOS, please try the following steps:
1)In the system settings, turn off and turn on Bluetooth;
2)In the Control Center, tap the Bluetooth icon repeatedly to re-enable Bluetooth.
Turn on device, run App to connect it.
How to sync data?
Estimated shipping dates are listed on the preorder product page. We will ship as soon as the item(s) become available and you'll receive a tracking number via email. Ship dates are estimates and subject to change without notice.
O2ring Usage Guide
How to set up O2Ring App
More FAQs
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Should You Trust Smart Watch on Blood Oxygen Readings?
we do have studies showing us that reflectance oximetry (used in AW7) is not as accurate or stable as transmittance oximetry (used in fingertip pulse oximeters.) It’s important to understand this significant technological difference.
What Is the Normal Blood Oxygen Level? Is My Blood Oxygen Level Normal?
People with chronic health conditions many need to monitor their blood oxygen level. This includes asthma, heart disease, and chronic obstructive pulmonary disease (COPD).In these cases, monitoring your blood oxygen level can help determine if treatments are working, or if they should be adjusted.
Specifications
Click to Show More
WEIGHT
0.53 oz / 15g
DEVICE DIMENSIONS
1.5'' x 1.2'' x 1.5''
RING PERIMETER
2.0'' - 3.2''/ 50-82mm
WIRELESS
Bluetooth 4.0 BLE
BATTERY LIFE
Rechargeable lithium-polymer, 3.7 Vdc; 12-16 hours for typical use
VIBRATION SOURCE
Low oxygen levels, high/low pulse rate
DEGREE OF DUST & WATER RESISTANCE
IP24
RECORDED PARAMETERS
Oxygen levels, pulse rate, motion
COMPATIBLE COMPUTER SYSTEM
Windows 7/8/10;
Mac software will be available in January 2020
COMPATIBLE WITH
iOS 9.0 or above, iPhone 4s/iPad 3 or above; Android 5.0 or above, with Bluetooth 4.0 BLE
OXYGEN LEVEL RANGE
70%-99%
PULSE RATE RANGE
30 to 250 bpm
MEASURE INTERVAL
1S
DISPLAY INTERVAL IN APP DATA CHART
4S
BUILT-IN MEMORY
4 sessions, up to 10 hours for each session
MODEL:
O2Ring
Frequently Asked Questions
What is O2 Score?
O2 Score is a measure of oxygen shortage during whole sleep. It combines frequency, duration, and depth of oxygen drops. A higher score means oxygen is richer. If it's yellow or red, please ask your doctor for advice.
Do I need to pair Bluetooth?
DO NOT PAIR in the system settings of your phone. Make sure the Bluetooth is enabled on your phone and device’s battery is not out.
Why do I need to allow Location access for Android?
With android phone, you need to allow Location access to make Bluetooth work. We DO NOT collect your location data.If you have refused the permission, you can try following steps to allow the access:
1)Reboot your phone;
2)Turn on “location”on your phone;
3)System settings -> Apps-> ViHealth, allow location access.
Why I can’t connect device with App after updating iOS system software?
If you can’t connect your device after updating iOS, please try the following steps:
1)In the system settings, turn off and turn on Bluetooth;
2)In the Control Center, tap the Bluetooth icon repeatedly to re-enable Bluetooth.
Turn on device, run App to connect it.
How to sync data?
Estimated shipping dates are listed on the preorder product page. We will ship as soon as the item(s) become available and you'll receive a tracking number via email. Ship dates are estimates and subject to change without notice.
O2ring Usage Guide
How to set up O2Ring App
More FAQs
Expecting Even More Powerful Tool for Your Oxygen Tracking Overnight?
With ultra long battery run-time of 72 hours (more than 7 full nights) per charge, Checkme™ O2 Max Wrist Oxygen Monitor may well be the ultimate solution for continuous O2 saturation monitoring during sleep.
Basic Verision Continuous Oxygen Monitor Ring, Satisfy Your Home Daily Check
As a basic version of O2Ring, OxyRing provides continuous blood oxygen level, pulse rate and body motion tracking with only $149. Compare to choose the one you need,
Mini Ring Oxygen Monitor，Smaller Size, Same Powerful
Small Size Oxygen Monitor Ring. Ring perimeter is 1.7'' - 1.9''/42-49mm, more fit for small size fingers and not easy to slip off.
Save $49 at Checking out