I've tried six of them: 2 sets of 3. Having used so many of them I can give you a pretty reasonable opinion of their quality. Fit: Almost too tight. . You have to be very precise when applying and put a protective film on the phone and screen. This way you can see where you apply it in relation to the active part of the ad. I think that's actually a good thing because it ensures that it doesn't bother many case brands. Cases where screen protectors interfere are a surprisingly common problem. Touch Sensitivity: Awesome! If the sensitivity decreases, then it is imperceptible to me. Protection: Despite the fact that I've ruined six of them with various cracks, my phone's glass is 99.0% clean. Why not 100%? Well, it doesn't cover 100% of the screen. It leaves the areas around the front camera and proximity sensor (or is it a speaker?) clear. Any screen protector leaves these areas exposed as they should be. My screen has some wear in these tiny areas. never mind So why three stars and not five? It scratches easily. Search all of these reviews for the word "scratch" and you'll find that the word appears more frequently in reviews of this product than competing screen protectors. Really easy as it seems. I only threw them away when they were cracked, not scratched. But when they break, they usually have accumulated a lot of scratches. I'll be the first to admit I'm rude on my phones. I put on a fairly thick case and never use it with an unprotected screen. I use it a lot at the beach and last summer I went to the beach almost every week. I usually carry this phone in a pocket with my car keys. However, if the hardness is good as stated, sand and keys should not scratch. Does "9H" mean 9 on the Mohs hardness scale? no I will not blame the screen protector for tearing often. If it clicks and my phone doesn't, then it's done its job. But I find that they shouldn't be scratched often, especially with sand. Quartz (most sand particles) has a hardness of 7.0, while steel has a hardness of around 4.5. It should not be scratched by sand and ordinary household items, in my opinion. Note that everyday dirt can contain grains of sand.
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