The tempered glass is a hardened glass, specially crafted to cover and protect your mobile screen from scratches and other damages.
It does not affect the functionality of the screen. In case of a drop, it does not guarantee that the screen won't crack along with it, but it provides an additional layer of protection.
It features adhesive across its entire surface, unlike edge glue screens which only have adhesive around the perimeter. This helps in better application and seamless touch screen operation.
Additionally, it prevents dust from passing underneath, which can happen with edge glue screens when the perimeter adhesive wears out.