Don't bother with the One Plus 3 screen protector, it's complete crap. 1. It doesn't cover the screen completely, there's a good 1/16th of a inch exposed on each side of the glass if you manage to get it set perfectly. 2. Mine shattered, after using it for a week, when it fell from my office table onto carpet (about 1' drop). Yes, carpet - unreal. Additionally, it somehow scratched my screen when it shattered. Needless to say I'm extremely disappointed in the quality of this product and am contacting OnePlus right now to see if they will help. If not, I'll leverge my 24 month extended warranty to replace out my device due to this utter failure.
I had used a simple screen protector on my old Nexus 5 for over 3 years, beat the ever living hell out of it, nothing could phase it. Color me skeptical at the build quality on OnePlus.