iPhone Duo screens crack after minimal use, users report

Apple's first foldable smartphone, the iPhone Duo, released Friday, is facing criticism after multiple users report cracked screens appearing after just a few uses, often with a black line near the hinge. An Australian user reported hearing a crack before the defect appeared, while videos show devices failing shortly after purchase, sometimes before owners left the Apple Store. The cause is unknown, with a possible defective hinge component under investigation. The iPhone Duo, priced from 2,000 francs in Switzerland, also failed durability tests, with sand infiltrating the hinge mechanism. Apple is expected to replace defective units, though replacement stock may be insufficient for carrier purchases. Samsung faced similar issues with its first Galaxy Fold in 2019.