[iOS Gravity]

Does the feature still work well with a glass screen protector installed?

[Rob Phillips]

I've heard from multiple people around here that 3D Touch works just fine with a screen protector. I don't use one myself so I can't personally guarantee that though.

[Rmorton0573]

I have the Zagg glass on my 6S Plus, and 3D Touch works just fine.

[anon(4698833)]

Works just fine.

[Quis89]

Works perfectly. Can't compare as I haven't touched my screen without a glass protector. But from what I can tell with it on it works perfectly.

[eyecrispy]

I can verify that it works just fine with techarmor glass screen protectors.
Apple's official stance is that the protector needs to be 0.3mm or less. The techarmor one I use is 0.33mm.

Speigen also advertises theirs as 3D touch compatible.

[EagleFox007]

Does the feature still work well with a glass screen protector installed?

Absolutely. 3D Touch is triggered by pressure and I don't think any screen protector that are out in the market today are thick enough to prevent you from pressing your screen.

[s_banks]

I have a cheap glass screen protector and never notice a difference in touch sensitivity.

[TripleOne]

Works perfectly fine with the Zagg InvisibleShield Glass

[Ariel Babalao]

Having the glass protection on the screen doesn't affect in any way force touch. Same amount of pressure either glass is on the display or not, in my experience.