China R36 Health Tracker Ring IP68 Waterproof ECG Heart Rate Blood Oxygen Pressure Monitoring

China R36 Health Tracker Ring IP68 Waterproof ECG Heart Rate Blood Oxygen Pressure Monitoring. R36 Smart Ring with IP68 5ATM waterproof GH3228 sensor supports ECG heart rate blood oxygen blood pressure and temperature monitoring. Features 24 hour health tracking remote data monitoring real time viewing via app and photography function. Bluetooth 5.3 low energy 15 20mAh battery 5 to 7 days working time compatible with Android iOS CE FCC certified.