About Product 1. Battery capacity: 180mAh 2. Bluetooth version :BLE 5.0 3. Charging method:magnetic charging 4. Waterproof rating: IP68 waterproof 5. Resolution:172x320 6. System: Android system 4.4 version or above,iOS system 9.0 version or above 7. APP:DeepFit 8. APP support languages: Chinese, traditional Chinese, English, Japanese, Korean, German, Russian, Spanish, Italian, French, Portuguese, Swedish, Turkish, Croatian, Slovene 9. Watch support languages:Chinese, Traditional Chinese, English, Japanese, Korean, German, Russian, Spanish, Italian, French, Portuguese, Swedish, Turkish Function 1. Blood sugar monitoring,heart rate monitoring,blood pressure monitoring,blood oxygen monitoring 2. Step,distance,calorie 3. Sleep monitoring (sleep duration, sleep quality) 4. ECG electrocardiogram,temperature monitoring,real-time pressure monitoring,remote care from family and friends 5. Stopwatch, Countdown,call reminder, alarm alert, sedentary reminder, hand-raised screen,multi-sport mode 6. Message notification:Call, SMS, Email, WeChat, QQ, Facebook, Twitter, WhatsApp, LinkedIn, Instagram, Messenger, Snapchat, Line, Kakao Talk, Viber, Skype, telegram