not in common use
Because their body length and width are not the same, the protective film of different models can not be universal.
The toughened film mainly protects the front, and most of the phone's falling process is due to the screen cracking caused by the four corners touching the ground. The simplest protection against falling is to wrap a circle of silicone around it, and it is higher than the front of the phone, which can effectively protect the screen.