The full face tempered glass is a full-coverage strengthened glass specifically designed to protect your mobile phone's screen from scratches and other damages. In case of a fall, there is no guarantee that the screen won't break along with it, but it provides additional protection. It does not affect the screen's functionality.
It features adhesive across the entire surface, unlike edge glue glass protectors that only have glue around the perimeter. This helps with better application and seamless touch screen operation. Additionally, it prevents dust from passing underneath, which can occur with edge glue protectors when the perimeter glue wears out.