Apple has acknowledged a problem with the inner display on a “small number” of iPhone Duo units, and it’s telling affected customers to contact AppleCare for a replacement. TechRadar received the statement directly and reported it Oct. 26. Apple gave the same account to Gizmodo for a report published Oct. 30. Apple’s Sept. 9 announcement calls the Duo its first foldable iPhone. It went on sale in the United States on Oct. 23, starting at $1,999.
The people with the most at stake are the ones who have already paid. Apple hasn’t said how many units are involved, what causes the display issue, or which production batches are affected. It also hasn’t said whether replacement units carry any design or manufacturing change. Nothing in the retrieved reporting describes a recall or a confirmed design flaw. The company’s position, so far, is that it knows about the issue and that affected owners should call AppleCare.
What the 75,001-fold test does and doesn’t show
Apple’s acknowledgment landed in the middle of a public argument about how well the Duo holds up. Gizmodo reported Oct. 30 that a team led by Kuba Klawiter folded and unfolded an iPhone Duo by hand until a line formed down the inner display on fold 75,001. The phone worked through 50,000 folds, by that account. Then the testers added dirt and dust, and the crease deepened around 60,000 folds. At 75,000 folds they set the phone in a bowl of ice, and the line showed up right afterward.
Gizmodo said as much itself: the test conditions kept changing, so the result can’t settle how the Duo compares with competing foldables. We couldn’t retrieve the original test video, so these details come from Gizmodo’s reporting rather than our own review. The sources don’t establish what broke the display: dust, cold, the accumulated folding or something else.
A second unit passed 139,000 folds
Also on Oct. 30, CNET reported that its own iPhone Duo test unit passed 139,000 folds in a proprietary automated folding machine. CNET said the crease barely changed and was hard to see with the display on. That alone means 75,001 folds isn’t a point at which every Duo fails. Gizmodo, in its Oct. 30 report, put the CNET unit above 120,000 folds; each figure belongs to the outlet that published it. The two runs can’t be compared directly anyway. One used hand folding with dirt and ice, the other a machine.
Apple publishes no fold-cycle rating
Apple’s announcement says the hinge has more than 100 components, and that the inner display is built from a scratch-resistant coating, a polymer cover layer, high-strength glass, custom adhesives and a titanium plate. The phone is listed as IP68 splash-, water- and dust-resistant. What the announcement doesn’t include is a rating for how many folds the phone should survive, or any warranty commitment specific to folding. Apple offers no number to judge either test against.
The sources also don’t show that the lines customers are reporting share a cause with the failure in the stress test. TechRadar said the available reports don’t settle whether the failures come from ordinary handling, misuse, a broader design problem or isolated defective units.
What Duo owners should do now
Apple’s instruction is narrow: if a line appears on the inner display, contact AppleCare for a replacement. Our own advice, which isn’t a fact from these sources: look closely at the inner panel now, and report a line as soon as you see one rather than waiting to find out whether it spreads. For shoppers still deciding, what Apple hasn’t said matters more than either fold count. The company has published no durability figure of its own and hasn’t explained the issue it acknowledged. Neither 75,001 nor 139,000 folds tells you how long a Duo will last.