About Product 1. Bluetooth version: BLE 4.0 2. System: Android system 4.4 version or above,iOS system 9.0 version or above 3. Main control chip: NRF52832 4. Battery capacity: 140mAh 5. Waterproof rating: IP68 6. APP support languages:Simplified Chinese, Traditional Chinese, English, Japanese, Korean, German, Russian, Spanish, Italian, French, Vietnamese, Portuguese Function 1. Heart rate monitoring, blood pressure monitoring,blood oxygen monitoring 2. Sleep monitoring (sleep time, sleep quality 3. Standard function (step, distance, calories) 4. Multi-sports mode(walking,running,cycling,swimming,basketball,badminton,table tennis,football,jump rope) 5. Alarm clock,sedentary reminder,message notification,call reminder,wechat alerts,QQ reminder 6. Predict menstrual cycle intelligently 7. Find your phone and find the bracelet
