1. Battery capacity: 380mAh 2. Waterproof level: IP68 waterproof 3. Bluetooth version : Bluetooth 3.0 and 5.0BLE 4. Resolution:396*484 5. Charging method:magnetic wireless charging 6. Battery life: 3-5 days 7. Charging time: 1.5 hours 8. APP:RDFit 9. APP languages: Simplified Chinese, Traditional Chinese, English, Russian, Spanish, German, Italian, French, Portuguese, Polish, Dutch, Greek, Turkish, Romanian, Japanese, Hebrew, Danish, Swedish, Czech, Slovak, Hungarian 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. Social APP message reminder:facebooktwitterwhatsappQQWeChat 5. Multi-sport modes:run,walking,football,badminton,tennis,basketball,pingpong,ride,yoga,jump rope,mountaineering 6. Sedentary reminder, drinking water reminder,voice Siri,alarm clock,weather,password lock screen,bluetooth anti-lost,Alipay 7. NFC access control,bluetooth music,bluetooth camera,calculator,calendar,AI assistant,stopwatch,breath training
