ZTFIT PRO is an application developed based on the Bluetooth bracelet. It uses Bluetooth 4.0 communication, bread statistics, sleep, blood pressure measurement, remote shooting (through the bracelet screenshot), alarm clock settings, sedentary reminders (setting reminders to prevent users from sitting Too long), raising your hand to brighten the screen, step counting, message pressing, do not disturb mode, sleep monitoring, find bracelet and other functions. Users can use the app to intuitively understand their physical condition and exercise status. It is a lightweight assistant tool application.