Smoothness to Use- First of all, tempered glass screen protectors not just protect your phone’s display against scratches, but also translate to a very smooth usage experience.
In case of plastic scratch guards, you might feel them to become a bit sticky or even rough to use after prolonged use, but tempered glass scratch guards, being made of glass don’t suffer from this and you would make you feel as if you were using your phone without any scratch guard at all.
Protection Against Accidental Falls- Tempered screen protectors also protect your phone’s display against accidental falls by sacrificing itself. So it might happen that your phone installed with tempered screen guard falls and you see the display shattered when you pick it back up.
Well, you don’t have to worry about that as you would notice that it was the screen guard that took the beating and not the actual LCD/LED display.