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.

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.

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
The Ability to Prompt for A Better O2

A Brand You Can Trust
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%.

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.
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
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

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
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
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


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?
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.
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.
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.
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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?
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.
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.
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.
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