State of the art waterproof (IP67) activity tracker with free APP in multiple languages. Tracks your activity, counts calories burned and monitors your sleep pattern. Comes with crystal clear touch screen on which you can easily swipe through your data. The bracelet enables you to receive incoming calls and messages and can be used to control the camera on your mobile phone. Works on Bluetooth 4.0 and the 75mAh battery allows you to use the device for a full week. Works on both IOS (4S or higher) and Android (4.3).