Function:Timetable, pedometer, heart rate, sleep monitoring, blood oxygen, multi-sports mode, information and social information push, call reminder, alarm clock, sedentary reminder, stopwatch, find mobile phone, remote control photoAPP name F-FITSystem requirements IOS9.0 and Android 4.4 and above, Bluetooth 5.0Watch language:Chinese, English, Russian, Japanese, German, Spanish, French, Italian, Polish, Korean, PortugueseAPP language:English, Simplified Chinese, Traditional Chinese, Japanese, French, German, Italian, Spanish, Russian, Portuguese, Malay, Korean, Polish, Thai, Romanian, Bulgarian, Hungarian, Turkish, Czech Languages, Slovak, Danish, Norwegian, Swedish, Filipino, Ukrainian, Vietnamese, Dutch, Croatian, Arabic, Indonesian, GreekNote:Wearable devices monitors human activities through electronic sensors,and they are at the consumer electuonics level.It's normal for certain deviation.The user should treat data objectively.--Please do not compared to hospital equipment about reading,it is NOT a medical device --Before using, scan the QR code on the manual to download the app and connect it to the watch with APP.--Please charge it for 2-3 hours when you receive it. it was run out of power after the long delivery. Thank you