The full face tempered glass is a full coverage tempered glass designed specifically to protect your mobile screen from scratches and other damages. In case of a fall, it provides additional protection without guaranteeing that the screen won't crack. It does not affect the functionality of the screen.
The black bezel covers the entire surface of the screen, including the edges. It features adhesive across the entire surface, unlike edge glue screens which only have adhesive around the perimeter. This ensures better application and smooth operation of the touch screen. Additionally, it prevents dust from getting underneath, which can happen with edge glue when the perimeter adhesive wears out.