[Samsung Galaxy S21 Accessories] zachman1750:
I know there's already comments regarding the ZAGG D3O Hybrid Glass, but wanted to give my thoughts since I purchased and installed it: Best Buy Link

I

t's Not Glass

I too was expecting a glass protector even though they called it a "Glass Hybrid". It is definitely NOT glass, so do not expect that. That being said, it does feel pretty good under the fingers. Not quite as flawless as real glass, but I'd say it's better than the preinstalled one that came on the S20 and previous devices (also, the new S21 I received did come with a preinstalled protector, but it also had a large tab off the corner indicating intent for it to be removed before use). Also, use it for a few minutes after cleaning and it gets smoother. I'm not talking about getting it all greased up, but just using it for a few minutes makes it feel more like genuine glass.

Installation

Installation was horrible for me, but I think I got a defective one. There's a tab that indicates which side of the protector you pull off first, and despite my best efforts, the other layer kept separating, and it was nearly impossible to get the correct layer of backing off of it. That led to it popping off, and me needing to re-adhere it. This resulted in it not being quite perfect, and there being TONS of bubbles under the protector.

Luckily, I bought it at Best Buy and they hooked me up. I brought it in, explained the issue with the backing, and they replaced it free of charge. I just decided to pay 8$ there to have the guy install it for me, and he did it in about a minute flawlessly (seriously). I would definitely recommend buying and installing with Best Buy if you're even remotely nervous about it, as it wasn't as simple as a typical hard, real glass protector (because it's not one). Additionally, that 8$ gets you a free replacement/reinstall through Best Buy as needed.

Fingerprint Sensor

My fingerprint sensor works just fine with this protector. I had no issues even with the first one I installed that had bubbles everywhere. It's certainly more performant than my S20's sensor with the stock Samsung screen protector installed. I use the trick to register both thumbs under the same imprint, and then I do that twice. It's likely not as secure, but it certainly makes it easier to unlock my phone.

Look & Clarity

Look and clarity is excellent. There's no weird visual effects or noticeable modifications to screen colors or clarity. It's also extremely hard to tell it's on my phone. There's enough of a gap on the edge for a case, but I see no gap between my case and the screen protector. It also sheds fingerprints pretty well, so I'm happy with it there.

Overall

I'd give it an 8/10. It's a reliable option with great support and peace of mind through Best Buy, and it's certainly better than the stock protectors that used to come on phones like the S20 through Samsung. You also get a protector that seems to work really well with the fingerprint reader. The Dome glass may be a better option, but I did get this one for about half the price of a Whitestone with a Honey coupon at Best Buy (10$ off, equating to $31 total). I may try a true tempered glass at some point down the line if this one gets damaged, but I'm in no rush to do so.