Summary: 1. First, turn on Apple's mobile phone and open "Settings" on the desktop of the mobile phone. 2. Find "Privacy" in "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. Finally, click the "switch" on the right side of the App to be authorized to authorize and complete the operation.

Presentation environment information: Presentation equipment: Apple 12, system version: ios 14.4.2, software version: ios 14.4.2.

Graphical steps: 1. First, turn on Apple's mobile phone and open "Settings" on the desktop of the mobile phone.

2. Find "Privacy" in "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. Finally, click the "switch" on the right side of the App to be authorized to authorize and complete the operation.