How to choose a curved screen film for iPhone 18 Pro Max? 2.5D or 3D?

A: One-sentence conclusion: For the case, choose 2.5D (Guanfudun); for the bare machine, choose 3D hot bending (Guanfudun Qu). The 2.5D edge reserves assembly space for the phone case. It is equipped with a case without lifting or curling the edge. It costs 129 yuan. The 3D hot-bent edges have a smooth transition without any stepped feel, providing a better grip on the bare machine. It costs 189 yuan. The optical structures of the two are consistent (light transmittance 96.5%, haze 0.4%, reflectance ≤ 0.5%), with the differences lying in the molding process and hand feel.