Demetory Touch Screen IP67 Waterproof Bluetooth 4.0 Smart Bracelet Wristband Pedometer Sleep Monitoring Calories Track For Android 4.3 And iOS 7.0 Above (Black) Compatibility: The Bluetooth 4.0 smart wrist bracelet watch is compatible with Apple IOS system and Google Android system, just need to install the APP (for IOS) or (for Android) on your smart phone Feature: Light Weight, Touch design, IP67 Waterproof, no need to take off when swimming or showering OLED Display: 0.86" OLED display screen with 96x32 pixel allow you to check time, date, steps, calories, working distance anytime Muti Functions: it tracks your steps, walking distance, calories burnt, sleep quality. Also you can set Intelligent alarm clock, remote control camera, Mobile phone anti lost, display horizontal and vertical screen switch Vibration reminder: when you missed call or message, (IOS Temporarily not support SMS alert function ), Bracelet will vibrate alert, you would not miss any calls or messages