The OnePlus smartphone comes with a feature that allows us to set the vibration pattern and its strength for incoming calls.

The following options are available for the vibration pattern, although it may seem rather amusing when written out in full:

The vibration intensity can be set in the following three levels:

Note: The vibration pattern and vibration intensity can be adjusted independently.

Android 10 | OxygenOS 10.0
Step 1:  Open the  Settings
Step 2:  Tap on  Sounds & vibration
Step 3:  Tap on  Phone ringtone and vibration
Step 4:  Tap on  Vibration pattern and intensity
Step 5:  Set the  vibration pattern
Step 6:  Set the  vibration intensity
  1. Open the Settings
  2. Tap on Sounds & vibration
  3. Tap on Phone ringtone and vibration
  4. Tap on Vibration pattern and intensity
  5. Set the vibration pattern
  6. Set the vibration intensity

OnePlus Instructions