Android
Turn Alarm Vibration On or Off auf Android
When an alarm or reminder keeps vibrating even after you lower the ringtone volume, the phone is applying a separate vibration setting reserved for alarms. This function sits apart from the general notification and call vibration controls, which is why muting one does not affect the other.
Android manages this through the vibration and haptics section of the sound settings. Turning the option off stops the phone from shaking during an alarm or reminder, while the assigned ringtone still plays at the volume you set. Turning it on adds a vibration pulse on top of the sound, which helps when the phone is on a hard surface or in a noisy room.
To change it, go to Tap on Settings ➔ Tap on Sound & vibration ➔ Tap on Vibration & haptics ➔ Enable or disable Alarm vibration. The setting applies to alarms and reminders only; it does not change vibration behavior for calls or regular notifications.
If an alarm stays silent instead of too loud, check that the alarm volume slider itself is not muted, since vibration and volume are controlled separately.