Apple has finally entered the foldable smartphone race with the iPhone Duo, featuring a 7.8-inch inner display, A20 Pro chip, dual 48MP cameras, Apple Pencil support and Touch ID. Alongside the iPhone 18 Pro and Pro Max, new Apple Watches and AirPods 5 Pro, Apple is making a major push across its ecosystem. But with Samsung's Galaxy Z Fold8 and Xiaomi's 18 Fold already in the arena-and Samsung taking jabs at Apple-can the iPhone Duo disrupt the foldable market?