Screen protectors are among the first accessories people buy for new phones, but foldables present unique challenges. Most foldables have two screens, and the inner display uses flexible layers instead of rigid glass. For the outer screen, any standard protector works fine since it uses chemically strengthened glass like Gorilla Glass or Ceramic Shield.
However, the inner screen requires extreme caution. Due to the physics of folding, the inner display relies on many flexible layers to survive hundreds of thousands of folds. Most foldable phones come with a built-in screen protector that should never be removed.
Samsung and Apple offer official replacements, but users should not attempt DIY removal. Unofficial protectors can damage the entire display. Some brands sell ultra-thin protectors under 0.1mm, but companies warn against applying unofficial ones to the inner screen.
Dust is a bigger enemy than scratches for foldables. The latest Galaxy Z Fold devices are IP48-certified, resisting water and particles larger than 1mm, while the i Phone Duo is IP68-certified, offering dust-tight protection. Regardless, small particles can still scratch the screen inside the hinge.
Using a case that covers the hinge is recommended for added protection.
Source: Engadget · Summarized by HeadlinesBriefing