Support Mobile Phone Version:For Ios8.0 Or Above, For Android 4.4 Or Higher App Language: Chinese, English, Western, French, German, Russian, A, Dutch, Portuguese, A, Tu, Japanese, Malaysia, Thailand Application Function Step By Step: Support Distance: Support Calories : Support Blood Pressure: Support Blood Oxygen : Support Information Reminder: Qq, Facebook, Whatsapp, Twitter, Skype, Instagram, Wechat. Sedentary Reminder : Support Alarm Clock : Support Stopwatch : Support Sleep Monitoring: Support Looking For A Mobile Phone: Support Looking For A Bracelet: Support Specifications: Button : Single Touch Display Size: 1.3 Inches Resolution: 240*240 Type : Oled Color Screen Standby Time: More Than Two Weeks Use Time: More Than 1 Week Charging Method: Usb Interface Charging