iPhone 20: 5 features to take from iPhone Duo, 3 to skip

Apple is reportedly planning a major redesign for the iPhone 20 in 2027, and experts suggest it should adopt several features from the new foldable iPhone Duo, including titanium construction, stylus support, and split-screen multitasking. The iPhone Duo introduces capabilities absent from standard iPhones, such as Touch ID on the power button and a hole-punch camera, which could enhance the iPhone 20's usability and security options. These features would complement the rumored all-glass design, though titanium may be needed if that design fails. However, the iPhone 20 should avoid the Duo's under-display camera due to poor quality, its wider form factor, and nanotexture display, which reduces color vividness. These elements are less suited for a traditional slab phone, where they could compromise performance and user experience.