iPhone can be sticked with membrane: 1. High-definition film is thin, and the visual effect is good. However, it is easily scratched; 2. Frosted film is also thin, but its visual effect is not so good without fingerprint; 3. Tempered film is thinner, and its visual effect is good and resistant to scratch.
If iPhone do not stick membrane, it will be scratched by some alloy keys; and it will have minor scratches because of the friction with ordinary sand. Mobile phone film will inevitably reduce the screen brightness. First, reduce the screen brightness. Even it is the AR film (also known as high light transmittance anti-reflection film) featured as high light transmittance, its light?transmittance is only about 95%. Other mobile phone films have greater influence on screen brightness. Second, reduce trackpad sensitivity. After sticking membrane for mobile phone, the screen may become "stuck", "slippery action", thus reduceing the iPhone's touch experience.
