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The iPhone Duo is Apple's first foldable phone, with a 7.6-inch inner display that unfolds to roughly 50% more screen area than the iPhone 18 Pro Max. It uses a grade 5 titanium frame and hinge cover, Ceramic Shield 2 on the front and Ceramic Shield on the back, and a 48MP Fusion dual camera with an under-display FaceTime camera. The A20 Pro chip with vapor chamber cooling targets on-device AI work, and iOS is reworked for split-screen multitasking. It suits people who want a phone and small tablet in one and accept the weight, hinge and crease that come with folding designs.
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iPhone Duo is a foldable iPhone with a 7.6-inch Super Retina XDR inner display and a smaller outer display that has the same aspect ratio. The inner display is made of 10 ultrathin layers with a nanotextured finish that reduces glare. The FaceTime camera sits under the display.
The frame and hinge cover are grade 5 titanium. Ceramic Shield 2 covers the front and Ceramic Shield covers the back. The inner display has a scratch-resistant coating, and the phone is IP68 rated against water and dust.
It runs iOS 27, which adapts to how the phone is held. Open it in landscape to use Split View with two apps side by side. Open it in portrait for a wider keyboard and more room to browse. Keep it closed for compact one-hand use, prop it up to watch video or follow a workout, or stand it up for hands-free video calls and StandBy mode.
