About Product 1. Battery capacity: 230mAh 2. Waterproof rating: IP68 waterproof 3. Bluetooth version : Bluetooth 5.0 4. Charging mede:Magnetic charging 5. Resolution:320*380 6. System: Android system 4.4 version or above,iOS system 8.4 version or above 7. Watch languages: Simplified Chinese, Traditional Chinese, English (by default), French, German, Japanese, Spanish, Italian, Korean, Russian, Czech, Portuguese, Turkish, Hebrew, Greek, Latin, Vietnamese, Danish, Thai, Arabic, Polish 8. APP:wearfit pro Function 1. Bluetooth call,heart rate monitoring,blood pressure monitoring,blood oxygen monitoring 2. Step,distance,calorie 3. Sleep monitoring (sleep duration, sleep quality) 4. Multip sports mode:walking,running,climbing,Riding,etc 5. Stopwatch, clock,music control,weather,notifications push, SMS alerts push, sedentary reminder,call remind,update by OTA