CHEERS, ME EARS
Check on it
Not sure if it’s a DJ or rattling public transport giving your hearing a battering? Fire up the Noise app and it’ll tell you. In fact, your Watch will warn you regardless if it thinks your ears need protection — set the db level in Settings > Noise.
Keep it down
Should your ears mostly be under threat from your own listening habits, go to Settings > Sounds & Haptics and then select and turn on Reduce Loud Sounds. This will limit headphone output to a sensible 85db — although that level can be adjusted.