The iPhone alarm can be set to vibrate only. This means when the alarm goes off, it will not play any sounds but instead give off a quiet vibration that’s easy enough for you to get used to! How do I make my own silent / Vibration Only Alarm?
To change the iPhone alarm so it only vibrates follow these steps:
- Set the alarm Sound to None
- Switch the iPhone Ring/Silent switch to silent (vibrate) mode
Now when the alarm is triggered the iPhone will vibrate, but no sounds will be played.
Note that alarms with no sound will not vibrate when the Ringer is on. These silent alarms will only show an alert in Notification Center.