Apple Concedes iPhone Duo Crease Cannot Be Eliminated, Says Matte Coating Only Softens It

Three days after the iPhone Duo went on sale, debate over a visible crease on its foldable inner display has intensified. Apple's hardware engineering chief acknowledged on September 19, 2026, that the physical crease cannot be removed and said the company reduces its visibility with a nanotexture surface and matte coating. Commentators note the device's 15,999-yuan price implies a level of display perfection the crease contradicts, even though Apple's spec sheet never promises a crease-free screen. A reviewer's test of 11,500 folds showed a deeper crease, which critics cite, though the piece argues this is only about 5.75% of Apple's rated 200,000-cycle hinge life and does not show hinge failure. The article also argues that crease visibility lacks any shared testing standard, so no vendor can easily quantify it.