If you're deaf or hard of hearing in one ear, mono audio can help make sure you still get all the sound.

With a Bluetooth headset, you can listen to audio right from your Apple Watch. Stereo audio, however, can have separate sound in each channel — left or right. Mono audio puts all the sound into both channels — left and right. That way, whether it's music or talk, you won't miss anything.

How to turn on mono audio on your Apple Watch

  1. Launch the Apple Watch app on your iPhone.
  2. Tap on the My Watch tab.
  3. Tap on General
  4. Tap on Accessibility.
  5. Toggle Mono Audio to ON