Tempered glass for Samsung A51

Samsung already has crazy problems with fingerprint recognition, the extra tempered glass made it worse. I tried to register new fingerprints for 45 minutes, but in the end, I had to switch to pattern lock because I couldn't fix it.
The same thing happened with the Samsung A7 with the side button, same problems... and without the tempered glass.

The extra tempered glass applied very easily and didn't leave any bubbles between the glass and the protective material. It leaves about a millimeter from each side that could be utilized, it takes a little bit from the screen glass but it's not that bothersome.

It slightly distorts the image. However, it leaves very noticeable fingerprints marks even with minimal use.
The packaging of the product was simply in a small envelope and not a complete sealed plastic packaging like other companies. Obviously, the importer imports them in large quantities and then sells them individually.

13_01 update

It doesn't withstand at all, it broke very easily without much pressure. After two weeks of use, it cracked in two places.

Next time, I will buy something more reputable for real protection