About Product 1. Battery capacity: 280mAh 2. Bluetooth version :Bluetooth 4.0 3. Charging method:magnetic charging 4. Waterproof rating: IP67 waterproof 5. Resolution:240x280 6. System: Android system 5.0 version or above,iOS system 9.0 version or above 7. APP:H Band 8. Standby time:20 days 9. Usage time:5 days 10. Watch support languages: Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Arabic, Korean, Dutch and Hindi 11. APP support languages:English, Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Simplified Chinese, Traditional Chinese, English, Portuguese, Spanish, Arabic and Korean Function 1. Blood glucose testing,heart rate monitoring,blood pressure monitoring,blood oxygen monitoring 2. Step,distance,calorie 3. Sleep monitoring (sleep duration, sleep quality) 4. Bluetooth call,breath training,Mett,turn wrist bright screen,multi-sport modes 5. Social APP message reminder:SMS,Wechat,QQ,Facebook,Twitter,whatsAPP,Line,instagram,Kakaotalk,Skype,Snapchat,Gmail,Telehram 6. Alarm reminder,call reminder,sedentary reminder,music control, female menstrual cycle 7. Calendar,timer,weather forecast,stopwatch,remote camera,screen brightness adjustment,find phone,find watch