Annbully E06 Bluetooth Smart Wristband Sports Bracelet Bluetooth 4.0 Android 4.3 and above, more than IOS 7.0, Bluetooth 4.0 Size: 41 * 17 * 10.5mm Support Passometer/ sleep monitor/Message/Call Reminder/Anti-lost,Waterproof rate of IP67 CPU AMICCOM 8105 V4.0BLE Display: 0.69 inches OLED (resolution 96x16)