System Requirements: Android 5.0 and above or IOS 9.0 and above. In order to let you use the fitness tracker smoothly: 1. If you can't start the machine, charge it for one hour first, and the screen will prompt that it is charging after plugging in the power cord. 2. Follow the steps in the manual to download the application, then open the application, select to connect to the tracking table, turn on all the functions you want, and input your information, such as height, weight, age, etc. 3. Wear the sensor close to the skin to avoid loose. Wait patiently for a few seconds for the fitness tracker to get stable and start reading data. Operation: click the key to switch different functions, long press to enter the function you want. Tip: If the mobile phone can't find the fitness tracker all the time or can't connect, you can turn off the fitness tracker and restart it to search and connect. The fitness tracker doesn't have to be worn too tightly. The sensor can be attached to the skin. Do not wear it for a long time to make the wrist skin breathe well and feel comfortable. In order to prolong the life of the fitness tracker, it can be cleaned regularly.
