You can use the music player to play audio files you've synchronised with your Apple Watch. To use the music player, you need to establish a connection to a Bluetooth headset.
On your phone: Press Watch.
On your phone: Press My Watch.
On your phone: Press Music.
On your phone: Press Add Music... and go to the required playlist or album.
On your phone: Press the add icon to transfer the audio files to your Apple Watch.
Press the Digital Crown.
Press the music player icon.
Go to the required category or playlist and press the required audio file.
Turn the Digital Crown to select the required volume.
Press arrow right to go to the next audio file.
Press arrow left twice to go to the previous audio file.
Press the playback queue icon.
Press the shuffle icon to turn the function on or off.
Press the repeat icon to turn the function on or off.
Press the Digital Crown twice to return to the home screen.