苹果COO萨比赫·汗视察富士康郑州园区，iPhone Duo折叠屏量产良率约60%仍处艰难爬坡

Days before preorders open for Apple's first foldable smartphone, the iPhone Duo, Apple Chief Operating Officer Sabih Khan visited China to inspect its supply chain. On October 11, Khan and Foxconn rotating CEO Michael Chiang toured Foxconn's Zhengzhou technology park in Henan, focusing on iPhone Duo production, iPhone 18 Pro rear-camera modules, anodizing for exterior midframes, and chip-level surface-sputtering manufacturing.

Khan's return to China comes as iPhone Duo production continues to face a difficult ramp-up. Earlier reports by several Chinese media outlets said Apple still faced multiple manufacturing challenges ahead of the foldable phone's official launch.
Reports have indicated that the overall yield rate for Foxconn's iPhone Duo assembly is only around 60%, with limited output in the first batch. The contract manufacturer has reportedly asked Apple to choose between prioritizing yield and prioritizing production capacity. Khan's visit is seen as an effort to address the iPhone Duo's mass-production challenges.
In media discussions, Khan described the iPhone Duo as one of Apple's most challenging and exciting products to date. He said the Zhengzhou Foxconn campus is arguably the largest factory producing iPhones and possibly the world's largest smartphone manufacturing site.
Khan said Apple has developed strong manufacturing precision and design capabilities at the site, working with suppliers to realize the product's design. Although the entire manufacturing process is highly complex, he said it delivers a simple and intuitive experience for users.
When aabout production readiness for the iPhone Duo, Khan said the team had been advancing manufacturing development and was scaling up production in line with Apple's established high-quality standards.
Industry observers said that an Apple COO visit to inspect key manufacturing processes at this stage typically points to capacity ramp-up, yield improvement, and quality control ahead of mass production. Khan's description to Chinese media of "scaling up production" also confirms that the iPhone Duo is at a critical transition point from manufacturing development to large-scale production.
According to reports by Jiemian , The Paper , and other Chinese media, Khan visited the factory on a Sunday, yet the Zhengzhou Foxconn campus continued to operate in an orderly manner. Apple's latest iPhone 18 Pro series had just launched, and supply remained tight as Foxconn accelerated production.
The iPhone Duo is being assembled exclusively at Foxconn's factories in China. One of its key manufacturing challenges is controlling the flatness of the folding area and reducing the visibility of the display crease, and Foxconn is working to build inventory.
Chiang said in an interview that Foxconn is shifting from its traditional image as the "world's factory" toward becoming a technology manufacturing platform and service provider. The main capabilities supporting this transformation are AI-driven smart manufacturing and vertical supply-chain integration.
AI applications are also expanding from inspection to production processes. Chiang said Foxconn is deploying AI agents in its smart production-scheduling system to automatically retrieve materials, equipment, and personnel data from different systems based on production requirements and generate production schedules.