O2Ring continuously monitors blood oxygen saturation (SpO2) and heart rate to help detect sleep apnea. When sleep apnea occurs (a pause or stop in breathing), blood oxygen levels drop.
O2Ring detects this drop in oxygen saturation along with heart rate changes and alerts the user through vibration. When this happens repeatedly, the device records all the data, which can be reviewed via the app to help identify potential sleep apnea issues.
Wear our O2Ring while you sleep, and it will quietly collect data, with a 98% effective detection rate for sleep apnea.
What Our Customers Are Saying
About the item
✅【Continuous Monitoring】 O2Ring can continuously monitor your blood oxygen saturation and heart rate, generate trend reports on APP or PC software, intuitive reports show your health condition in detail. You can share your reports in PDF/CSV form.
✅【Smart Notification】O2Ring will notify you by vibrating your finger or beep on phone (when connecting) if it detect abnormal oxygen saturation or heart rate, then you can take a break to recover. You can adjust the threshold on the APP.
✅【Wearability & Portability】The patented ring sensor made of soft silicone completely frees your finger while ensuring accurate measurements, it never slips off your finger. You can check your health status anytime anywhere.It is the lightest and the smallest oxygen monitor.
✅【Intelligent Data Management】Built-in memory can enables it to work independently without a phone. The data will be synced with your APP automatically when connected with your phone, and you can also sync the data with your PC using the cable provided. Unlimited storage at no additional charge.
✅【Note】Accurate reading will be displayed within 10 seconds after you stop exercising and calm down. It will shows "--" if your finger move too much.
Specifications
Model：O2Ring
Fits Finger Circumference：50 mm – 82 mm (2.0" – 3.2")
Weight：0.53 oz / 15g
Device Dimensions：1.5'' x 1.2'' x 1.5''
Degree of Dust & Water Resistance：IP22
Battery Life：Rechargeable lithium-polymer, 3.7 Vdc; 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 level, pulse rate, motion
Oxygen Level Range：70%-100%
Pulse Rate Range：30 to 250 bpm
SpO2 Accuracy：80%-99%: ±2% 70%-79%: ±3%
Pulse Rate Accuracy：±2bpm or ±2%
Measure Interval：1 second
Data Display Interval in App：4 second
Compatible Computer System：Windows 7/8/10/11；macOS 10.15.3 or later
Works With：iOS 9.0 or later, iPhone 4s/iPad 3 or later；Android 5.0 or later, with Bluetooth 4.0 BLE
Package include
1X O2Ring pulse oximeter
1X Micro USB cable
1X User guide
Medical-Grade Accurate Pulse Oximeter
Track overnight, then view sleep oxygen report in the morning.
Track Your Oxygen Level Every Second. Finger measurements work best for transmission oximeters, capturing stronger pulse signals and staying accurate across all skin tones. Paired with a smart SOC chip and anti-interference technology, the oximeter ring delivers reliable readings within ±2% accuracy.
Smart Tracking That Starts by Itself
Automatic Start. Wear it and it powers on by itself to begin tracking your data.
Built-in Memory. Stores up to 4 sets of 10-hour data, automatically syncing to your device via Bluetooth when connected to the app.
Rechargeable Oximeter. 16 hours of battery life on a single charge.
Free Features, No Subscription Required
Real-time Data
View real-time oxygen levels, pulse rate, and motion data in the free iOS & Android app. No delay, no guessing.
Detailed Reports to Share
View high-resolution charts updated every 4 seconds. Record unlimited data, annotate, and export for detailed insights.
Trend History Review
By reviewing weekly, monthly, and yearly trends, you can fine-tune your care and feel confident your sleep health is on the right track.
Quick Setup
Customize vibration, brightness, and reminder settings to match your sleep and health preferences.
Get Clear Insights
A summary of oxygen drops, low SpO duration, and your nightly Oxygen Score—data you can actually use to track your sleep health.
Export Reports
Download SpO2, pulse rate & motion reports in PDF / CSV formats—perfect for sharing with your doctor or keeping personal records.
Make Sure Your CPAP Therapy Works
The O2Ring provides a real-time safety net by vibrating when your blood oxygen drops below a preset level.Even with a good average of 96%, brief drops still appear and can indicate mask leaks, poor pressure, or positional problems.
Optimize Your Oxygen Therapy Over Time
Trends over days, weeks, or even years show whether your oxygen stays in the target range. You can share these insights with your doctor to help you keep adjusting toward better results.
On 12-Sep-2025 at 09:59:45 BST, seller added the following information:
On Oct 22, 2025 at 05:01:34 PDT, seller added the following information:
Medical-Grade Accurate Pulse Oximeter
Smart Tracking That Starts by Itself
Get Clear Insights
