Connecting with the smart watch, you can push SMS and incoming calls to the bracelet display. At the same time, it can also count steps, measure heart rate, blood pressure, and synchronize the user's personal health status and daily exercise amount to the application. 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 XOfit device via BLE. This