How to change vibration settings in iOS 12 for iPhone/iPad/iPod Touch

To disable vibrations:

1. Open the ‘Accessibility Settings’: Settings > General > Accessibility. (See the article Open Accessibility Preferences on this website for more information.)
2. Under the ‘Interaction’ section, tap ‘Vibration’.
   
3. Tap the toggle switch next to ‘Vibration’ to disable this feature.
   
4. When happy with your settings, either tap the back button in the top left of the screen to return to the main ‘Accessibility’ settings screen or press your device’s ‘Home’ button to return to the home screen.