Apple tests iPhone Duo 2 with Face ID, telephoto camera, and larger screen

Apple is reportedly developing the iPhone Duo 2, its next foldable, with early prototypes testing Face ID, an Action button, a telephoto camera, and a larger display, even as the first iPhone Duo reaches customers in India. Bloomberg's Mark Gurman says the company is exploring these upgrades, though not all may debut in the second generation. Face ID integration on the outer display poses engineering challenges due to specialized sensors, while a telephoto camera and bigger screen could impact internal space and device thickness. Future foldable displays may grow from 7.6 inches to between 8.5 and 9 inches, but Apple is likely to spread improvements across the second and third generations. No official announcement, specifications, or launch timeline for the iPhone Duo 2 has been made.