How to create custom vibrations for specific contacts on iPhone

Open the Contacts app.

Find the desired contact for custom vibration.

Click Edit in the top right corner.

Choose Ringtone or Text Tone, depending on the notification type.

Tap Vibration.

Select a standard vibration from the list.

To create a custom vibration, choose Create New Vibration.

Tap the screen up to 10 times to form a distinct pattern.

Once done, hit Save.

Custom vibration assigned to the contact will signal their call or text.