https://wccftech.com/apple-improving-iphone-xr-haptic-touch/

Apple has cut corners on the iPhone XR to dial down the price, but apart from the low-resolution LCD display, most of the things eliminated do not really matter. Take 3D Touch for example, and while it is useful in some cases, it might not have clicked with users and developers alike. 3D Touch senses how deeply the display was pressed to trigger different commands.

Since the iPhone XR sports an edge-to-edge LCD display, Apple wasn’t able to include 3D Touch. As a substitute, Apple introduced Haptic Touch. A new layer of haptic feedback has been added which will make it easier to recognize when a certain feature is triggered. Haptic Touch tries to emulate 3D Touch as best as possible but it is not at the same level yet.