iPhone Duo Passes 55,000 Folds in Durability Test

The iPhone Duo has made it past 55,000 folds on a fold-testing machine, a milestone that puts it in serious contention in the durability debate around foldable phones. The machine repeatedly opens and closes a handset to simulate years of ordinary use, and hinge and display wear are the failure points that matter most to buyers weighing a foldable against a conventional phone.

The headline result is the cycle count itself. Folding hardware has to survive tens of thousands of openings and closings before it is considered reliable, so getting this far without a reported failure is a meaningful sign for a first-generation design. The test also points to how much the hinge, the crease, and the protective layer over the display matter in day-to-day wear.

The obvious comparison is Samsung's Galaxy Z Fold 8, which has set the benchmark for foldable durability in the category. The source material poses the question of whether the Duo can beat it, but the cycle count alone does not settle that. Durability results depend on the test conditions, how each device is built, and how it holds up after the repeated stress of real use, so a single test run is a starting point rather than a verdict.

Readers should watch for the full results, including whether the screen crease changed over the test and whether the hinge stayed smooth throughout. Those details will show whether the 55,000-cycle number reflects a device that is ready for daily use or one that simply got through a lab test.