Core functions Call reminder, SMS notification is the core function of the app.The usage scenarios are as follows: When a user's phone calls or get a message, we push the corresponding information to the M2Wear device via BLE. This function is our key function which can only be achieved by using this permission. Smart devices Pair and manage various smart devices such as Smart Band and Smart Watch. Customize and sync notifications and sync incoming call info and recent call. Health data Keep