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Transfer Audio to Watch

You can transfer audio files to your Apple Watch. The following formats are supported: MP3, M4A, AAC, M4B, WAV, AIF, AIFF, AU, CAF, FLAC

⚠️ Some high-bitrate FLAC files may not play on the watch.

Audio transfer should begin within one minute. If there's no progress, try the following:

  1. Keep OnePlayer open on both devices and don't let the screen turn off
  2. Playing music on your phone while transferring can make the transfer more stable
  3. Make sure the watch battery is sufficiently charged
  4. If you're not in a hurry, audio transfer can run in the background, but the timing is determined by the system

Charging both the watch and phone can speed up the transfer.