3D Touch was discontinued with the iPhone 11 and onwards in favor of Haptic Touch. Haptic Touch is a feature on the iPhone XR, 11, 11 Pro/11 Pro Max, SE (2nd generation), 12/12 Mini and 12 Pro/12 Pro Max replacing 3D Touch.
Does the SE 2020 have 3D Touch?
"These devices support Haptic Touch: iPhone SE (2nd generation), iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, and iPhone XR. These devices support 3D Touch: iPhone 6s, iPhone 6s Plus, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, and iPhone XS Max."
How do I turn on 3D Touch on SE?
How to turn on 3D or Haptic Touch and adjust the sensitivity
- Go to Settings and tap Accessibility.
- Tap Touch, then tap 3D & Haptic Touch. Depending on the device you have, you may only see 3D Touch or Haptic Touch.*
- Turn on the feature, then use the slider to select a sensitivity level.