iPhone Duo: Apple’s First Foldable iPhone Is Official

What Is the iPhone Duo?

The iPhone Duo is Apple’s first foldable iPhone, announced on September 9, 2026 at the company’s “Surprise and Shine” event. It opens like a book from a 5.4-inch closed device into a 7.6-inch inner display — the largest screen Apple has ever put in an iPhone. It’s priced at $1,999, launches October 23, 2026, and runs a modified version of iOS 27 built specifically for its folding design.

That’s the short version. Here’s everything Apple actually announced.

Design and Display: What Makes It Different

Unlike early foldables from other brands, Apple didn’t just slap a hinge on an existing phone. The iPhone Duo is built around a machined and polished titanium frame, with Ceramic Shield on the back and the newer Ceramic Shield 2 on the front. Closed, it’s reportedly the thinnest iPhone Apple has ever made — helped by an internal layout that pushes components into the camera plateau to free up space elsewhere.

The inner display uses a custom nano-texture finish designed to cut glare and reflections, along with a separate micro-lens texture — created using maskless laser lithography that etches each lens pixel by pixel — aimed at making the fold crease as close to invisible as possible while still feeling premium under your thumb. The device carries an IP68 rating for dust and water resistance and comes in two colors: Star White and Night Sky.

Camera and Hardware

Powering the iPhone Duo is Apple’s new A20 Pro chip, paired with a vapor-chamber cooling system — a first for iPhone, likely needed to manage heat across the larger, thinner chassis. The device uses a dual-battery system split across both halves of the phone to balance weight and preserve battery life once unfolded.

On the camera side, Apple kept its familiar dual-lens setup, capable of 48MP photos and 4K 120fps video. Software-wise, Face ID has been replaced with Touch ID on the iPhone Duo — likely a space and engineering trade-off given the folding design, rather than a step back in security.

Software Experience: iOS 27, Rebuilt for Folding

This is where the iPhone Duo separates itself from being “just a bigger iPhone.” iOS 27 has been adapted specifically for the device’s different positions and orientations, supporting Split View multitasking, hands-free FaceTime and video calling, and a StandBy mode that works even without charging — something the standard iPhone’s StandBy mode requires.

Essential controls have been moved to the sides of the display to stay within thumb’s reach, the Home Screen dock is now oriented vertically, and the status bar has been redesigned to sit neatly in the display’s corner. Apple Pencil support over USB-C is coming to the iPhone Duo later in 2026, extending the device’s usefulness for note-taking and sketching once unfolded.

How the iPhone Duo Compares

Apple isn’t the first company to ship a foldable phone — brands like Samsung have sold book-style foldables for several years. What sets the iPhone Duo apart on paper is its wider aspect ratio: rather than the tall, narrow unfolded shape common on earlier foldables, Apple opted for a shape closer to a small iPad, which the company says better suits watching video and multitasking. Whether that translates to a genuinely better day-to-day experience will depend on real-world reviews once the device ships.

Price and Release Date

The iPhone Duo starts at $1,999 for the 256GB model. Pre-orders open October 16 at 5am Pacific in the US (1pm in the UK), with the device going on sale October 23 in more than 70 countries and regions, including the US, UK, Canada, Australia, China, France, Germany, India, and Japan. A further 28 countries and regions will get it a week later, on October 30.