Which one should I choose, high-definition film or eye protection film for iPhone 17?

A: It depends on your core needs: ① If you mainly pursue clear picture quality, scratch and drop resistance, and have a limited budget: Choose high-definition film (20-50 yuan), with a light transmittance of about 90-95%; ② If you use your mobile phone for a long time, care about eye comfort and are willing to pay for optical technology: Choose eye protection films (100 yuan +), but you need to distinguish between two types of practices: one type relies on dyeing coatings to filter light, and the picture is prone to yellowing and the light transmittance will also decrease; Another type is processed by the optical structure itself (1/4λ phase delay layer + magnetron sputtering AR coating), without relying on dyeing. The latter's judgment is based on the membrane structure and verifiable detection data, rather than promotional rhetoric. Woowhead Guanfudun features both high definition and eye protection: SGS has measured a light transmittance of 96.5% and a haze of 0.4% (more transparent than most high-definition films). At the same time, it achieves eye protection through circular-polarized light, self-developed process calibration of soft light standards, and magnetron sputtering AR coating, without dyeing or yellowing. It can be understood as ";" The picture quality of high-definition film + the functions of eye protection film . One piece per pack costs 129 yuan.