Test: iPhone Duo crease worsens after 10,000 folds, hinge stays smooth

YouTuber Tim Pan of MediaStorm folded an iPhone Duo 10,000 times at room temperature plus 1,000 more at about -20°C. The crease on the 7.6-inch inner display became more visible, while the hinge stayed smooth with no obvious wear. The test is observational: one unit, no crease measurements and no certified fold rating from Apple.

• 10,000 folds at room temperature plus 1,000 at -20°C
• Crease on the 7.6-inch display became more visible; depth not measured
• Hinge stayed smooth and opening feel was largely unchanged
• 10,000 folds equals roughly three months at 100 folds a day