The iPhone Duo arrived in stores on Friday, October 23, 2026, marking the company’s first foray into foldable hardware. However, within days of the launch, some early adopters reported that the device’s internal display was cracking along the hinge line, often within hours of initial use. Apple acknowledged the reports on Monday, October 26, stating that the issue affects a “small number” of units.
The phenomenon, which has been dubbed “Crackgate” by users on social media, has prompted technical investigations into the device’s complex mechanical hinge. While Apple has not provided a specific technical explanation for the failures, third-party teardown experts have identified a likely mechanical culprit behind the display damage.
The Hinge Support Theory
Following a teardown of the device, iFixit technician Shahram Mokhtari identified what appears to be a “stress hotspot” within the hinge assembly. Mokhtari reported that a center support bar, designed to retract as the phone closes, may fail to move smoothly in certain units. When this bar fails to retract fully, it creates a localized pressure point against the display cable path and the underside of the foldable panel. This uneven pressure can lead to a catastrophic failure of the ultra-thin glass when the device is fully folded or unfolded.
Manufacturing Variance and Quality Standards
The failures appear to be inconsistent across the initial production run. While some users report cracks within hours, independent stress testing by CNET has shown an iPhone Duo unit surpassing 80,000 folds without a screen failure. This discrepancy suggests the issue may be a manufacturing variance—where specific batches or units deviate from the design specifications—rather than a universal flaw in the iPhone Duo’s engineering.
The situation represents the first significant hardware challenge for Apple CEO John Ternus, who took over the role from Tim Cook in September 2026.
For users concerned about long-term durability, the financial stakes are high. Apple has set the out-of-warranty repair cost for the iPhone Duo’s inner display at $999.
