If you add music to your Apple Watch, you can listen to it wherever you go, even when you don’t have your iPhone with you.
If you’re an Apple Music subscriber, personalized mixes are automatically added to your Apple Watch when it’s connected to power. If you want to change which playlists are automatically added, follow these steps:
Open the Apple Watch app on your iPhone.
Tap My Watch, then tap Music.
Turn individual playlists on or off.
Apple Music subscribers and non-subscribers can also choose to have Heavy Rotation added to their Apple Watch. Heavy Rotation is a collection of albums and playlists selected based on your iPhone listening habits.
Under Playlists & Albums, tap Add Music.
Select albums and playlists to add them to your Apple Watch.
Use the Music app on your iPhone to create playlists specifically for music you want to listen to on your Apple Watch—music that motivates you during a workout, for example.
Tap My Watch, then tap Workout.
Tap Workout Playlist, then choose a playlist.
This playlist plays automatically when you start a workout unless you’re currently listening to other music or audio.
Open the Settings app next to the unwanted items.
Music you remove from your Apple Watch remains on your iPhone.