Apple announces foldable “iPhone Duo”

Apple today announced the “iPhone Duo,” a new type of iPhone with dual screens and a foldable inner display.

The two halves of the iPhone Duo connect into a single continuous frame with the same aspect ratio on both screens, and Apple said the transition between open and closed is designed to be smooth. When fully opened, Apple called it the thinnest iPhone ever made, with an architecture that packs its components into the camera tray.

The frame is machined and polished titanium, with Ceramic Shield on the back and Ceramic Shield 2 on the front, and the device is IP68 rated. The iPhone Duo comes in two colors, Star White and Night Sky. Touch ID is integrated into the side button and the device can also be unlocked using an Apple Watch.

A custom hinge, made up of more than 100 tiny precision components, holds the screen flat when opened and controls the folding motion. Apple said the structure uses a multi-layer lamination design with viscoelastic adhesives that allow the screen’s layers to slide against each other when folding “like the pages of a book,” preventing distortion over time. A titanium plate forms the bottom layer for added durability, with carbon fiber support plates creating a rigid, lightweight base on which to rest the display.

The inner screen measures 7.6 inches, which Apple says is 50% larger than the iPhone 18 Pro Max and 80% larger than the ‌iPhone 18 Pro‌, while the outer screen measures 5.4 inches and offers 90% of the screen real estate of the ‌iPhone 18 Pro‌. Apple Pencil support will come to both displays later this year.

For the display surface itself, Apple said it created a custom nano-textured finish that reduces glare and reflections. The company also described a distinct micro-lens texture, produced using maskless laser lithography that writes each lens pixel by pixel, which it says creates a “perceptually flat matte surface” that minimizes crease visibility while maintaining a premium feel to the touch.

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