iPhone Duo faces production issues
Apple’s first foldable smartphone has encountered difficulties during the mass production stage. The Chinese publication Jiemian, citing sources in the supply chain, reports that as of September 17, the yield of iPhone Duo units at the final assembly stage at Foxconn was just over 60%.
Production is ongoing, but Foxconn regularly adjusts equipment, assembly processes, and production line parameters in an attempt to increase the yield of usable devices. According to sources, some suppliers are awaiting Apple’s decision on a possible relaxation of quality requirements, which would allow for faster production ramp-up.
Problems have also affected individual components. Previously, insufficient yields of usable components, supply delays, and design changes were noted for Samsung Display’s foldable OLED panels and hinge parts. A delay at any of these stages reduces the time available for Foxconn to configure its production lines.
A separate question concerns the hinge design. Sources previously reported that Apple planned to use liquid metal in some of its components to increase durability. Before mass production began, the company revised this approach, though it is unknown whether it abandoned the material entirely. Apple does not officially disclose the materials used for all hinge elements.
Despite production challenges, the global volume of Apple iPhone Duo units prepared in 2026 is expected to reach approximately 6-8 million devices. Whether the supply chain can support this volume at current yield rates remains unknown.
Pre-orders for the iPhone Duo will open on October 16, with sales beginning on October 23, 2026. If current production challenges persist, initial shipments of the device may be limited.
