If you’re somebody who wears their Apple Watch to track their sleep, you’ll probably be intimately aware of this issue. When using Sleep Schedule, your morning alarm will sound (or vibrate) on your Apple Watch, not your iPhone, which will remain silent.
The idea is that if the alarm only plays on your Apple Watch, it helps prevent waking your partner. However, many people have found that the Apple Watch’s alarm isn’t loud enough to wake them. So they’d miss their alarm.
To solve this, they wanted their iPhones’ and Apple Watches’ alarms to go off simultaneously. But that wasn’t previously possible. That has since changed.

Always Play on iPhone
Apple recently rolled out iOS 26.4 and with it, introduced a new feature called “Always Play on iPhone.” When toggled on, your morning alarm clock will play on both your Apple Watch and your iPhone.
This can be found in the Clock app or the Health app once you have Sleep Schedule set up. (But it’s easier to find/toggle in the Clock app.)



