Stock screen protector is glass...Well an extremely thin layer of glass making almost plastic like. press hard and you don't scratch it. You just plow through the glass to the plastic later under it.
i work with photonics so i got all kinds of fun stuff. So im going to measure how thick the glass layer is on it.
Definitely feels like this is a what they will be moving to for fordable displays. But the issues is its so thin the glass chips up on a scratch instead of just being a light surface scratch.
But i'll be updating this with some measurements and pictures under high magnification and some of the display in another topic with pixel size and all that like i typically do.
More info will be added with mesurements.
It's 4 layers. Glass. Middle plastic later and an adhesive later. I'll post actual measurements soon as I confirm it. I did not have time to check the calibration on it today.