"mycandy" is an application used in conjunction with the smart watch developed by our company (Model mycandy), hereinafter referred to as mycandy Watch. By connecting to mycandy watches, the application can do the following: 1. "mycandy" connects to mycandy watch through Bluetooth protocol, through which bluetooth conversation can be realized. Users do not need to take out their mobile phone to answer the call, but can make a conversation on the watch, which will greatly facilitate users' daily