iPhone Duo screen cracks reported by some owners within hours

Some owners of Apple's new foldable iPhone Duo are reporting screen cracks along the hinge within hours of use, according to posts on Reddit. The defect appears as a bright pixel line on one half of the display. One Australian user said his screen cracked after fewer than 20 folds, hearing a distinct crack and feeling something under the hinge. Apple Store staff immediately replaced his device, and MacRumors suggests Apple is collecting faulty units to improve manufacturing. The authenticity of the reports is difficult to verify, as some photos may come from demo units in China. The issue's prevalence is unclear, but hinge damage from normal use should be covered by the one-year warranty.