Open the Settings app. First, head to General > Accessibility, then scroll down until you see the 3D Touch option. This menu allows you shut 3D Touch off entirely or just change its sensitivity.
By default, you’ll be set to Medium, but you can change it to Light (less pressure required for activation) or Firm (more pressure needed) to fit your personal preference.
The default is fine for most people, but if you have trouble applying pressure to your screen or feel like you’re pressing too hard on your phone, try Light. If you keep activating 3D Touch when you don’t want to, see if Firm helps.
Once you’ve made your choice, you can test how the sensitivity feels on the sample image at the bottom.
Now that you’ve got 3D Touch set up how you like it, you can enjoy the Live Photos and app shortcuts your new phone brings. Haven’t bought your new iPhone yet? Be sure to avoid 16 GB model when you do.
Which sensitivity do you prefer for 3D Touch? Let us know how you use this feature by commenting!