Product Parameter Screen: 1.28 inch 240*240 full touch screen Battery: 220 Mah Charging method: magnetic charging Waterproof rating: IP67 hardware parameters Bluetooth: BT4.0 System version: Android 5.0 or above iOS 9.0 and above Specifications Heart rate/hour /date display, steps, distance, calories, sleep monitoring, call reminder, social APP message reminder, sedentary reminder, information reminder There are function activation switches on the APP side (incoming call, SMS, Wechat, QQ, Facebook, LinkedIn, WhatsApp , Line, , Snapchat, Skype and other mobile phone applications) and sedentary, alarm clock, drinking water, medicine, etc. event information reminders, remote photo capture, raise wrist to brighten screen, change format, stopwatch, find phone, stopwatch Bracelet brightness adjustment