A lot of users have said that turning off System Haptics does not work. ... Your iPhone's many system elements (pickers, scrolls, switches, sliders, etc) provides haptic feedback unless you turn this feature off.

Should my system haptics be on or off?

Disabling the System Haptics above doesn't stop haptic feedback when using 3D Touch, Haptic Touch, or other features on your iPhone. If you want to get rid of all the haptic feedback, you need to turn off all iPhone vibrations. This means your phone will no longer vibrate when you get a phone call or a text.

What is the point of haptics?

Haptics allow non-responsive surfaces like touchscreens to emulate the feeling of using real objects like buttons and dials. Haptic technology can involve vibrations, motors, and even ultrasound beams to simulate the feeling of touch.