Mildly unacceptable. It hides a huge part of the screen and is too small for this phone, resulting in the navigation buttons not being visible and part of the screen being visible from above and from the sides. I have not seen a worse application on a mobile screen. Money wasted.

It is the second screen protector I use for the Galaxy m21, the second failure in a row. While it has the correct size, the black border around it is thicker than it should be, resulting in hiding part of the screen from below. It also easily scratched from the first day from dust and broke easily at the edges with minimal force from the car's vibrations while I had it on one of the plastic surfaces where we all place things when driving. Not recommended, let's go for a third screen protection test.