Special Features: Heart Rate Monitor Blood Pressure Monitor Sleep Monitor Multi-sport Modes Pedometer Call or Message Reminder Call ID Display Information Push Reminder (SMS/QQ/WeChat/Skype//Twitter/Line/WhatsApp) Weather Push Music Control. Auto Light-up Screen Alert Type: Vibration Stopwatch Other Functions: Alarm clock ,Sedentary reminder,Camera remote control,Anti-lost APP Name: DayBand Russian,German,Italian,,Japanese,French,Thai,Simplified Chinese,Traditional Chinese,English,Portuguese,Spanish,Korean Colour:black Material:plastic Size:about 4 x 2 x 1cm Package Contents: 1 x Smart bracelet Note: 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 device! Before using, scan the QR code on the manual to download the app and connect it to the watch with APP. For Android user: Please always authorize APP Name: DayBand access to all phone functions and always let it operating on. and please turn on the GPS on your phone before you connect it. Please charge it for 2-3 hours when you receive it. it was run out of power after the long delivery. Thank you! Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.