So I ordered the Zizo Screen Protector too, and even got a replacement one since there was a smudge on the original. I too had the rainbow effect for both protectors, and I was extremely careful installing the new one and made sure to press down the middle of the screen first. Both were also very susceptible to smudges, I have to wipe my screen like crazy!
The black border is “necessary” because it hides the adhesive they use. It didn’t feel like there was any adhesive on the clear part of the protector, which explains the rainbow effect since the protector never makes full contact with the screen (I’ve seen a similar rainbow effect with Otter boxes that have built in screen protectors.) My guess is they use a little stronger adhesive than whatever is used to keep regular tempered glass protectors on, so that the black edges sticks to the curved parts of the phone more – but slightly lifts up the middle of the protector because of it. I think that’s how they managed to get ‘complete’ coverage on a curved screen.
I say ‘complete’ in quotes because there is some room on the sides that isn’t covered like previously stated by others. Also, even though the top and bottom completely covers the screen there is some slight overhang. I noticed this when I would see small hairs or strands ‘stick’ to the top and bottom of the protector. Also when I removed my first scree protector, I could see a distinct line of dust on the top and bottom, and even a little on the sides. The screen clearly isn’t completely sticking to the phone.
The crazy thing is, even after all these complaints it seems I still prefer this protector to one that doesn’t cover the whole screen. I don’t even think it’s from a protection standpoint, I think despite it being a smudgy, rainbow oily effect screen I prefer the looks of one that completely covers the phone to one that doesn’t. Here I thought I was done with all this curved screen/non-fitting nonsense when I switched over from Samsung. It’s sad that all tempered glass screen protectors and phone manufacturers has disappointed me to the point that the Zizo looks like the best option to me.
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