WECODO E06 0.69 inch Touch Screen Bluetooth Smart Sports Watch Waterproof Fitness Activity Tracker Pedometer Wristband System Requirements: Android 4.3 and above, more than IOS 7.0, Bluetooth 4.0 TOUCH SCREEN. 0.69 inch Touch Screen Bluetooth Smart Waterproof Bracelet IP57 life waterproof, no worry about the sweat when you are sporting call and message reminder, pedometer, anti-lost, camera remote contral, sleep tracker CPU: AMICCOM 8105 V4.0BLE