Opinion: Apple Asked Us to Hold It Accountable on the iPhone Duo. A Fold Rating Would Help.

A handful of cracked screens in launch week proves little either way. Apple's silence on how long the hinge and inner display should last is the bigger problem for a $1,999 phone.

CUPERTINO, Calif. - In September, an Apple hardware executive invited the public to keep score. Asked how the iPhone Duo’s crease would age, Tom Marieb, a vice president of hardware engineering, told reporters in London, “Hold us accountable to that, please,” as we reported at the time. One launch weekend later, plenty of people are trying to. Apple has given them almost nothing to hold it to.

The phone reached stores on Friday, and the first complaints followed within hours. An owner in Australia said his inner screen cracked along the hinge after about six hours and fewer than 20 openings, with “an audible crack” and no prior damage, MacRumors reported. An Apple Store replaced it on the spot. Photos from demo units in China show similar breaks, though their history is unknown. Then JerryRigEverything packed dust into a Duo’s hinge until it would not stay shut and bent the phone until its screen died.

Image: Apple

None of that adds up to a defect. Every big launch produces some early failures, and a torture test is not daily life. AppleInsider called contacts at Genius Bars in seven stores, four of them flagships, and none had seen a Duo come in for a broken screen. The best long-term evidence so far is also reassuring. Joanna Stern built a folding robot for her review and ran a Duo through more than 32,000 folds over four nights. A calibrated gauge showed the hinge was actually stiffer at the end, and she said it felt “pretty much the same as day one.”

But notice who is doing the measuring. It is a reporter with a homemade machine, a YouTuber with a bag of dirt and a forum full of strangers. Apple has not shared hinge tests or a lifetime fold number, MacRumors noted. Samsung does. Its display unit said in 2025 that the Galaxy Z Fold7’s screen passed a 500,000-fold test, which it translated into more than 10 years for someone folding about 100 times a day. You can argue about how that lab number maps onto real pockets. You cannot argue that it gives buyers something to check.

Image: JerryRigEverything / YouTube

The stakes are not abstract. The Duo starts at $1,999, and replacing its inner display outside AppleCare+ costs $999, according to Apple’s own repair pricing as reported by iThinkDifferent. Apple’s one-year warranty should cover hinge failures from normal use, and buyers have 14 days to return the phone. After that, an owner whose screen fails in month 13 is guessing whether that was bad luck or the expected life of the part.

Image: Apple

Apple usually prefers to let products speak for themselves, and on most iPhones that works. A first-generation folding phone is different. Its whole pitch rests on a moving part, and the company that asked to be held accountable is the one best placed to publish a number. A fold rating, a word on how many of the early reports Apple has actually seen, and a clear line on what the warranty covers would cost Apple very little. Silence, during the weeks when buyers decide whether to wait until January for a Duo, could cost it more.