More Apple Watch owners have lived through this situation than you’d expect.
You set a Sleep Schedule alarm, you wear your watch to bed, and the next morning, you sleep straight through it because the haptic buzz on your wrist wasn’t nearly enough to pull you out of a deep sleep.
Your phone, sitting six inches away on the nightstand, stayed completely silent. That’s by design, which is the weird part.
Apple built Sleep Schedule alarms to fire only on your watch, on purpose. The logic makes sense on paper: your partner shouldn’t get blasted awake by your iPhone just because you need to be up at 6 am.
But the tradeoff was that a lot of people were just… not waking up. A gentle wrist vibration isn’t exactly a foghorn.
iOS 26.4 quietly shipped a toggle called “Always Play on iPhone,” and it does exactly what the name suggests.
When you switch it on, your Sleep Schedule alarm rings on both devices simultaneously. Your iPhone, which is dramatically louder than any haptic pulse your watch can produce, finally joins the party.
Also: iOS 27 could break Apple’s long-standing control by letting competing AI run key iPhone features
To set this up:
- Open the Clock app
- Tap Alarms at the bottom
- Find your Sleep/Wake Up alarm and tap Change
- Scroll down to Alarm Options
- Toggle Always Play on iPhone (it’s off by default)
- Turn it on, and you’re set
One thing worth knowing before you go hunting: this only applies to the Sleep/Wake Up alarm.
Any other alarms you have saved in the Clock app are unaffected and will behave exactly as they always have. So if you were hoping this would change how your 2 pm reminder works, it won’t.
For anyone who has ever woken up an hour late because their watch couldn’t shake them hard enough, it’s the kind of fix that makes you wonder why it took this long.
