Apple has officially introduced iPhone Duo, bringing a foldable design to iPhone for the first time. When opened, it features a 7.6-inch Super Retina XDR display, the largest display ever on an iPhone, while a 5.4-inch outer display handles everyday use when the device is closed. Both displays support ProMotion, Always On, and up to 3,000 nits of peak outdoor brightness.
The device is built from grade 5 titanium and uses a new precision hinge. Apple says iPhone Duo is also the thinnest iPhone ever when opened. Touch ID is integrated into the side button, and Apple Pencil with USB-C support is planned for later this year.
Inside, iPhone Duo is powered by A20 Pro, paired with a custom vapor chamber and dual-battery architecture. Apple rates it for up to 31 hours of video playback using the inner display or up to 44 hours using the outer display.
The camera system includes a 48MP Fusion Main camera and 48MP Fusion Ultra Wide camera, while the foldable design enables new features such as Duo Preview, rear-camera selfies, and Smart Take. iOS 27 has also been redesigned for the form factor, including Split View multitasking with two apps side by side.
iPhone Duo supports Apple Intelligence and Siri AI, and will be available in star white and night sky with storage options from 256GB to 2TB. U.S. pricing starts at $1,999, with pre-orders beginning October 16 and availability starting October 23.