iPhone Duo hands-on: Apple's most exciting device in a decade

The iPhone Duo features a 5.4-inch external OLED and a 7.6-inch flexible OLED interior within a titanium, IP68-rated chassis, weighing 254 g and measuring 11.3 mm closed, making it bulkier than the Galaxy Z Fold 8. It includes a lock key with Touch ID, a dedicated camera button, a top-mounted volume rocker, supports tent, tabletop, and partial-fold modes, incorporates an under-display FaceTime camera, uses matte nano-texture to conceal the crease, and allows Apple Pencil input on both screens.