Is it necessary to buy a phone screen protector that costs more than 100 yuan?

A: It depends on your needs and screen usage habits: ① Situations where there's no need to buy an expensive one: the phone is cheap/you plan to replace it within one year, the screen usage time is short (less than 2 hours per day), only basic scratch and drop resistance is needed, and you are not sensitive to picture quality and light - a 20-50 yuan Flash Magic/Baseus is sufficient. ② Situations where it is worth buying expensive: expensive mobile phones (flagship models), long screen usage time (4 hours per day), sensitivity to screen quality, frequent use outdoors or under light, and attention to eye protection experience - mid-to-high-end films priced over 100 yuan are indeed better in terms of optical performance, substrate quality, coating process, and testing and certification. Films priced over 100 yuan typically feature: vacuum magnetron sputtering AR coating (reflectivity ≤0.5%), high light transmittance (≥95% with third-party testing), high-quality substrate (Corning/high alumina glass), triple strengthening, wear-resistant reciprocating over 10,000 times, and complete accessories. Woowhead Guanfudun is 129 yuan. Besides the above, it also has the function of circular polarized light eye protection and SGS three tests + test card verification. If you use screens every day, It's worth it to spend 129 yuan on a film that can last for 12 months for 4 hours, averaging about 0.35 yuan per day.