Normal Tempered glass
9H Tempered glass
9H Hardness Against Scratches
The surface hardness of the toughened glass reaches 9H, which is sufficient to deal with the sharp scratches on the screen, such as knives, keys and scissors.
Because of the feature of the curve glass which is more smooth, the electrostatic layer between the glass and screen is only 1/3 of regular glass, and the glass will be strongly attached on the screen as long as you put it right.
Customized for your handset