Apple's inaugural foldable smartphone, the iPhone Duo, is set to open for pre-orders at 8 PM on October 16 and will make its official debut on October 23, with prices starting at 15,999 yuan. This device boasts a book-style inward folding mechanism, featuring a 5.4-inch outer display and a 7.6-inch inner screen. It is powered by the advanced A20 Pro chip and supports eSIM technology. Apple has revealed the repair costs for out-of-warranty services, with inner screen damage repairs reaching up to 7,998 yuan. Battery replacements are priced at 1,898 yuan, while repairs for other types of damage can climb as high as 11,998 yuan. In stark contrast, opting for the 2,599 yuan AppleCare+ service plan significantly reduces repair expenses. With AppleCare+, the cost to repair inner screen damage drops to just 628 yuan, and battery replacements are complimentary if the battery health dips below 80%, offering substantial savings for users.