1. According to consulting Apple's customer service staff, Apple's mobile phone comes with a fitness system, which can open the settings of the mobile phone desktop.

2. Find the privacy in the settings and click Enter.

3. In the privacy interface, select Exercise and Fitness to enter the operation.

4. In the exercise and fitness interface, click the switch of fitness tracking to open it.

5. Click the switch on the right of the App to be authorized to authorize and complete the operation.