The iPhone Duo went on sale Friday as Apple’s $1,999 entry into foldables, promising a carefully engineered hinge and a large inner display. Within hours, however, early owners began posting strikingly similar failures: resistance at the hinge, an audible crack while opening the phone, then bright lines spreading across the inner OLED.¹

One Australian buyer said the device had been opened fewer than 20 times before they “felt something around the internal hinge,” heard a crack and saw the screen break along the fold. The Apple Store, the customer said, replaced it immediately.² Other reports described devices failing within a day—or before users had even completed setup—raising uncomfortable questions for a phone priced at roughly $2,000.³

By Monday, Apple had publicly acknowledged the reports but sought to contain their scope. “We are aware of an issue impacting the inner display on a small number of iPhone Duo units,” the company said, directing affected customers to AppleCare for replacements.⁴ Apple also stressed that early users had responded positively and developers were updating apps for the new form factor.⁵

The competing explanation is mechanical. iFixit’s teardown points to a transition in the hinge support where the display may press against a bar that does not drop far enough as the phone closes, creating a stress hotspot in an already delicate panel.⁶ Its technician Shahram Mokhtari said reports often involved users hearing “a crunch” while folding or unfolding the device, precisely where the hinge geometry changes.⁷

YouTuber CuriousHagi reached a similar, though not identical, conclusion after durability testing: a thinner central hinge link appeared to snap at a notch, with marks suggesting it may have caught against the support plate.⁸

For now, neither account establishes how widespread the failures are. Apple says most units are unaffected; teardown experts say the next few months will reveal whether this is an early-production blemish—or a first-generation foldable flaw.