HaWoFit APP is the supporting application of smart watches, such as 'Kr2', 'beatXP Unbound', 'Crystal',etc. those support BLE and BT, with the following functions: 1.One of the main functions of the APP is to push the incoming calls and SMS/MMS messages received by the mobile phone to the associated smart watch, so that you can answer and view the SMS/MMS on the watch side; when the watch side rejects the call, you can quickly reply, and the APP will send a pre-configured SMS to the caller at th