1. Open the "Fitness" app that comes with your Apple phone.

2. Click the "Start" button to enter the "Training" interface.

3. Choose the category of exercise, such as "running" and "hiking", and exercise according to the mobile phone prompts.

When using Apple's mobile phone fitness app, make sure that the mobile phone has enough power to prevent the mobile phone from being unable to record sports data without power. At the same time, in the process of exercise, you need to exercise according to the tips of the mobile phone to avoid excessive fatigue or injury.