Product Description

iPhone Duo – Official Technical Specifications

Design & Build

Finishes: Available in Night Sky and Star White.

Materials: Features a premium titanium foldable design with a titanium frame and hinge cover, Ceramic Shield 2 on the front, and Ceramic Shield on the back.

Design: A foldable, pocketable design that transforms from a compact phone into an expansive display. When opened, iPhone Duo is the thinnest iPhone ever.

Capacity (Storage Options)

Offers 256 GB, 512 GB, 1 TB, and 2 TB storage variants.

Size & Weight

Open

Width: 6.48 inches (164.6 mm)

Height: 4.64 inches (117.8 mm)

Depth: 0.21 inch (5.2 mm)

Folded

Width: 3.31 inches (84.1 mm)

Height: 4.64 inches (117.8 mm)

Depth: 0.44 inch (11.3 mm)

Weight: 8.96 ounces (254 grams)

Display

The iPhone Duo features two Super Retina XDR OLED displays designed to provide a seamless experience whether the device is open or folded.

Inner Display

Display: 7.6-inch all-screen OLED folding display

Resolution: 1878 × 2670 pixels at 430 ppi

Finish: Premium nano-texture finish

Outer Display

Display: 5.4-inch all-screen OLED display

Resolution: 1398 × 2034 pixels at 460 ppi

Display Features

Both displays support:

• ProMotion adaptive refresh rates up to 120 Hz
• Always-On display
• Dynamic Island
• HDR
• True Tone
• Wide color (P3)
• Haptic Touch
• 2,000,000:1 contrast ratio
• Up to 3000 nits outdoor peak brightness
• Anti-reflective coating
• Fingerprint-resistant oleophobic coating
• Apple Pencil support via USB-C

Camera System

Rear Camera: 48MP Dual Fusion camera system

Main Camera: 48MP Fusion Main

Ultra Wide: 48MP Fusion Ultra Wide

Front Camera: 12MP Center Stage camera

Under-Display Camera: Dedicated under-display FaceTime camera for video calls.

Camera Features: Smart Take, Duo Preview, Dual Capture, Photographic Styles, and advanced computational photography.

Video: Supports Dolby Vision video recording up to 4K at 120 fps.

Performance

Chip: A20 Pro

CPU: 6-core CPU

GPU: 7-core GPU with Neural Accelerators

Neural Engine: Dual 16-core Neural Engine

Thermal Management: Advanced vapor-cooled thermal architecture designed to deliver sustained performance during demanding workloads.

Foldable Experience

iPhone Duo introduces a new generation of iOS experiences designed specifically around its foldable form factor.

Split View: Run and interact with multiple apps side by side on the large inner display.

Flexible Views: Position the device at different angles for movies, content consumption, and multitasking.

Hands-Free Use: The foldable design allows iPhone Duo to stand on its own for hands-free FaceTime calls and videos.

Reimagined iOS: iOS 27 adapts automatically between the outer and inner displays for a seamless transition.

Battery & Charging

Video Playback: Up to 31 hours using the inner display.

Video Playback: Up to 44 hours using the outer display.

Battery Design: Dual-battery architecture designed to provide all-day power in a foldable form factor.

Charging: Supports fast charging and MagSafe wireless charging.

Connectivity

Supports 5G, Wi-Fi 7, Bluetooth 6, Thread, NFC, and USB-C connectivity.

Apple Intelligence

iPhone Duo is designed around Apple Intelligence and the new Siri AI, providing enhanced on-device intelligence and new ways to interact with iPhone across its larger display.

Operating System

Ships with iOS 27, redesigned to take advantage of the foldable display and multiple orientations of iPhone Duo.

Summary

iPhone Duo introduces Apple’s first foldable iPhone, combining a compact pocketable design with the largest display ever on an iPhone.

Its 7.6-inch folding Super Retina XDR display provides a 50% larger viewing area than iPhone 18 Pro Max, while the 5.4-inch outer display delivers a familiar smartphone experience when folded.

Powered by the A20 Pro chip, equipped with a 48MP Dual Fusion camera system, dual-battery architecture, titanium construction, and reimagined iOS 27 experiences, iPhone Duo is designed for multitasking, entertainment, productivity, and flexible everyday use.

At a Glance