Good product, good value for money
Well packaged product with everything needed for a correct application
(alcohol, cloth...)
The cleaning of the screen is to be done in a place without flying dust.
Afterwards, you have to pre-position the protection without touching the screen and put it on gently, it adheres perfectly to the glass and at the same time pushes the air bubbles outwards,
It may be necessary to help it for recalcitrant bubbles with a small cardboard or plastic scraper by applying from the inside to the outside
For info, I had to take it off and reposition it, no worries to put it back on the screen, I just have a micro bubble on the edge
The protection fits and fills completely without overflowing the front of the phone
The thickness is reassuring without being a hindrance
Installing with a transparent protective shell (Samsung Clear Cover Transparent Samsung Galaxy A21s from LDLC) no worries or discomfort.
No problems with touch sensitivity, the screen reacts as it would without the cover.
I recommend
Sincerely