1. A New Foldable iPhone Design

The defining feature of iPhone Duo is its foldable design. When opened, Apple says it is the thinnest iPhone yet and features the largest display ever offered on an iPhone.

The device can be used in multiple orientations, including open, closed, landscape and portrait positions. It can also stand on its own, allowing users to make hands-free FaceTime calls, watch content or record videos without holding the phone.

Apple is offering iPhone Duo in Night Sky and Star White finishes.

2. 7.6-inch Inner Display

At the centre of the experience is a 19.26 cm (7.6-inch) Super Retina XDR display. Apple says the inner screen is 50% larger than the display on the iPhone 18 Pro Max.

The inner display also hides the FaceTime camera beneath the screen, creating a more uninterrupted viewing area.

3. iOS 27 Designed for a Foldable iPhone

The foldable form factor is closely integrated with iOS 27, allowing the interface to adapt as users move between the inner and outer displays.

One of the key features is Split View multitasking. Users can, for example, browse their Photos library on one side of the display while dragging an image directly into Mail on the other.

The different viewing positions also open up new ways to use the iPhone. Users can watch videos at an angle, use StandBy mode, or position the device upright for hands-free calls and recording.

4. Dual 48MP Camera System

Apple Duo features a dual-camera system consisting of a 48MP Fusion Main camera and a 48MP Fusion Ultra Wide camera.

Apple has also introduced several camera features designed specifically around the foldable form factor.

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  Smart Take: Automatically captures a photo when everyone is ready.
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  Duo Preview: Lets people being photographed see the framing.
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  Duo FaceTime: Makes it easier to include people around you during video calls.
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  4K Video: Supports recording at up to 120 fps, Cinematic mode, 4K Dolby Vision time-lapse and low-light video recording.

A 12MP Center Stage front camera is also included, while an under-display FaceTime camera is integrated into the inner display.

5. A20 Pro Chip Powers the Experience

Under the hood, iPhone Duo is powered by Apple’s A20 Pro chip, paired with a Dual 16-core Neural Engine.

The device also uses an advanced thermal-management system with a vapour chamber, designed to help maintain performance during demanding workloads such as gaming and AI-powered applications.

6. Dual-Battery System

The foldable design requires a different approach to internal components, and Apple has developed an iPhone-first dual-battery system for iPhone Duo.

Apple says the combination of the dual-battery architecture, space-saving eSIM design and its C2 modem helps maximise available internal space while improving efficiency.

7. Apple Intelligence and Siri AI

iPhone Duo also brings Apple’s latest Apple Intelligence features to the foldable form factor.

Siri AI, powered by Apple Intelligence, is designed to handle more conversational interactions, provide information, work with personal context and perform actions across supported apps.

Other Apple Intelligence features include enhanced Clean Up, Image Playground, Writing Tools, Visual Intelligence, and contextual suggestions in apps such as Messages and Mail.

8. Connectivity and Safety Features

The device also includes Apple’s safety features, including Crash Detection and Find My. With Crash Detection, the iPhone can detect a severe car crash and call for help when the user is unable to do so.

9. A New Direction for the iPhone

With iPhone Duo, Apple is moving beyond the conventional smartphone design that has defined the iPhone for years. The combination of a foldable body, large inner display, and software designed around multiple orientations gives Apple a new platform for multitasking, entertainment, photography, and communication.

The device brings together the A20 Pro chip, Apple Intelligence, a dual 48MP camera system, iOS 27, and dual-battery architecture in a foldable design.

For users interested in Apple’s first foldable iPhone, iPhone Duo offers a new way to experience the iPhone, combining a larger display with the portability of a smartphone.