iPhone Duo Hinge Test Passes 207,000 Folds as CNET Continues Live Trial
CNET’s machine has folded Apple’s $1,999 iPhone Duo more than 207,000 times. The ongoing test tracks hinge wear as the phone keeps cycling.

The iPhone Duo has passed 207,000 folds in CNET’s long-term hinge test, giving Apple’s first foldable phone a demanding early workout. The number shows how far the test has progressed; it doesn’t yet tell buyers how long the hinge will last in everyday use. CNET plans to keep the machine running until the phone breaks.

The $1,999 Duo has been cycling in a custom-built machine called the Fold-a-Phone since CNET bought it on Oct. 23. The device repeatedly opens and closes the handset, putting its hinge through a concentrated run of motion. CNET says the machine is set to perform around 20,000 cycles per day, and the test is livestreamed from its lab in Louisville, Kentucky.

CNET’s description of its folding test explains the setup, while the live video lets viewers follow the phone as it continues to cycle. Editors are also available in the stream’s chat to answer questions about the Duo and the test.

What a fold count can tell you
A hinge is a wear point with a job that repeats every time someone opens or closes a foldable phone. A machine can accelerate that repetition and make it easier to observe whether a particular handset continues functioning under sustained use. The test’s central question is straightforward: how many cycles can this iPhone Duo complete before it fails?

But a large cycle count needs context. A machine repeating one motion can reveal something about the hinge under that setup; it doesn’t reproduce every condition a phone encounters in someone’s hands. The source doesn’t report a failure threshold, a warranty estimate or a conversion from machine cycles to a specific number of years. Until the Duo reaches a clear failure point, the count is evidence of progress through this test, not a lifespan guarantee.

That distinction matters for a first-generation foldable. Buyers considering the Duo have to weigh its folding design against the uncertainty that comes with a newer product category and a hinge that experiences repeated mechanical movement. Long-term testing can add useful evidence over time, especially if it documents changes to the hinge or display alongside the cycle count. For now, CNET’s public update is that the handset has exceeded 207,000 folds and is still being tested.

How the test fits into a buying decision
The test supplements CNET’s iPhone Duo review, which offers a snapshot of using Apple’s first foldable. A review can assess the phone as a product at a particular point in time; an ongoing mechanical test asks a narrower question that can only be answered through continued use. Readers interested in the hinge can watch the stream as the count rises, then compare any later updates with the initial findings.
CNET has framed the trial against other foldables, including the Samsung Galaxy Z Fold 8 and Google Pixel 11 Pro Fold. The available information doesn’t establish that those phones have been put through the same test, so the comparison remains a question for viewers rather than a measured durability ranking. The Duo’s opening animation is another feature the livestream invites viewers to watch as the cycles accumulate.
The cycle count also doesn’t answer practical questions about repair cost, migration or how the phone behaves after months of ordinary use. Those concerns call for different evidence. CNET points readers weighing a purchase toward its iPhone Duo deals page and its comparison of foldable phones, which includes folding and flip-style models from Samsung, Motorola and Google.
The next useful signal
The most informative next step is not simply a higher number. It’s a clear account of whether the Duo continues working, whether visible wear develops, and what condition the hinge and display are in as testing proceeds. CNET’s image of the phone at 207,000 folds records a milestone, but the source doesn’t report a detailed inspection result at that point.

For engineers and buyers, the value of the test will grow with the detail attached to each milestone: what changed, when it changed, and whether the phone still functions. The Fold-a-Phone puts a first-generation hinge under sustained, observable use. The practical takeaway for now is limited but useful: the Duo has completed more than 207,000 machine-driven folds, and CNET’s ongoing stream will show how much further it goes.