How to add a workout playlist to your Apple Watch via your iPhone

You can add a playlist from your music library that plays automatically when you start a workout in the Workout app on Apple Watch. Here’s how:

1. Open the Apple Watch app on your iPhone.
2. Tap My Watch, then tap Workout.
3. Tap Workout Playlist, then choose a playlist.

The playlist is added to My Watch > Music in the Apple Watch app on your iPhone. You should note that a workout playlist won’t play if you’re currently listening to other music or audio.

(This how-to is based on my experiences and info on Apple’s support pages — where the images sometimes come from.)