How do I use the interval training feature?

This feature is available for some workouts. Go to Workout Mode > Settings > Training > Interval training in the watch, at the bottom of the training details, there is an editing entry. You can directly edit the training stage, rest stage and loops of interval training. Once the editing is completed, go back to the interval training page and click "GO" to start the interval training.

When you use interval training, it will be performed according to settings you did. After this stage is completed, the training automatically goes to the next stage.