"FitRing" is an application that is used in conjunction with our company's smartwatch (model HJ08), hereinafter called the HJ08 Watch.By connecting to the HJ08 watch, the application does the following: 1. "FitRing" connects to the HJ08 watch to send the notifications and SMS received by the user's mobile phone to HJ08. The user can read the SMS and the contents of the notification directly on the HJ08 watch, and realize the function of quick reply to SMS through the HJ08 watch; 2. "FitRing" con