Apple's foldable iPhone Duo is finally here

Apple has finally announced its long-rumored foldable, the iPhone Duo. The headline specs are a 5.4-inch outer display and a 7.6-inch inner display, plus a nano-texture finish on the inner screen designed to keep the fold barely visible. Apple is also moving Touch ID to the power button instead of Face ID, a design choice that shows how hardware and biometrics are being rethought around new form factors. For product designers, engineers and supply chain teams, foldables raise the bar on display durability, hinge engineering and component placement. For anyone building a career in mobile hardware or UX, this launch is a reminder that the next wave of phone design will be shaped by how people actually open, hold and use a device that changes shape. We'll be watching how the market responds.