About Product 1. System: Android system 4.4 version or above,iOS system 8.4 version or above 2. Battery capacity: 90mAh 3. Waterproof rating: IP67 4. Screen resolution: 135*240 5. APP:Wearfit2.0 6. App Language: Android :English,Czech,German,Spanish,French,Italian,Japanese,Korean,Portuguese,Russian,Thai,Simplified Chinese,Traditional Chinese iOS: English, Chinese, Traditional Chinese, Japanese, Korean, Spanish, German, French, Portuguese, Italian, Russian, Polish 7.Bracelet language: Android: Simplified Chinese, Traditional Chinese, English, French, German, Japanese, Spanish Italian, Korean, Russian, Czech, Portuguese, Turkish, Hebrew, Greek, Latin, Vietnamese, Danish iOS: Simplified Chinese, Traditional Chinese, English, French, German, Japanese, Spanish Italian, Korean, Russian, Czech, Portuguese, Turkish, Hebrew, Greek, Latin, Vietnamese, Danish Function 1. ECG monitoring,heart rate monitoring ,blood pressure monitoring,blood oxygen monitoring 2. Step,calories,distance,motion track query 3. Sport mode:running, walking, swimming ,cycling,climbing,basketball,badmintom,foothball 4. Sedentary reminder,meeting reminder,drinking waker reminder, medication reminder 5. Multiple information reminders:call information,QQ,wechat,weibo 6. Find a mobile phone,find a bracelet,stopwatch,alarm clock,shake a photo,music,adjust the brightness