The iPhone Duo is Apple’s first foldable iPhone, combining a compact 5.4-inch outer display with a much larger 7.6-inch inner display when opened. It features the A20 Pro chip, a titanium foldable design, dual 48MP cameras, Apple Intelligence and a dual-battery system.
The iPhone Duo starts at $1,999 and comes with up to 2TB of storage. Pre-orders begin October 16, 2026, with availability starting October 23.
iPhone Duo Price
Apple offers four storage configurations:
| Storage | Price |
|---|---|
| 256GB | $1,999 |
| 512GB | $2,199 |
| 1TB | $2,599 |
| 2TB | $3,199 |
The iPhone Duo is available in Night Sky and Star White.
iPhone Duo Specifications
| Specification | iPhone Duo |
|---|---|
| Outer display | 5.4-inch Super Retina XDR |
| Inner display | 7.6-inch folding OLED |
| Refresh rate | ProMotion up to 120Hz |
| Processor | Apple A20 Pro |
| Rear cameras | Dual 48MP Fusion |
| Front camera | 12MP Center Stage |
| Inner camera | Under-display FaceTime camera |
| Storage | 256GB, 512GB, 1TB, 2TB |
| Material | Titanium |
| Weight | 254g |
| OS | iOS 27 |
| Modem | Apple C2 |
| Wireless | Wi-Fi 7, Bluetooth 6 |
| Water resistance | IP68 |
| Starting price | $1,999 |
Display
The iPhone Duo has two displays. When closed, the 5.4-inch Super Retina XDR outer display is designed for everyday tasks and one-handed use.
When opened, it reveals a 7.6-inch folding OLED display with a nano-texture finish. Both displays support ProMotion up to 120Hz, Always-On display, HDR, True Tone and up to 3,000 nits outdoor brightness.
The inner display also supports Apple Pencil with USB-C.
A20 Pro Processor
The iPhone Duo is powered by Apple’s A20 Pro chip, the same processor used in the iPhone 18 Pro models.
It features:
- 6-core CPU
- 7-core GPU with Neural Accelerators
- Dual 16-core Neural Engine
- Hardware-accelerated ray tracing
- 2nm process technology
Apple says A20 Pro delivers up to 20% faster CPU performance and up to 40% faster GPU performance than A19 Pro, while its advanced thermal system helps sustain demanding workloads.
iPhone Duo Camera
The iPhone Duo has a 48MP Dual Fusion camera system consisting of:
- 48MP Fusion Main camera
- 48MP Fusion Ultra Wide camera
- 12MP Center Stage front camera
The Main camera supports a 2x optical-quality Telephoto option, while the system provides up to 4x optical-quality zoom range and up to 10x digital zoom.
The foldable design also enables unique features such as Duo Preview, which lets users see a live camera preview on the outer display while taking photos.
Video Recording
The iPhone Duo supports 4K Dolby Vision video recording up to 120fps using the Fusion Main camera.
Other video features include:
- Cinematic mode
- Action mode
- Macro video
- Dual Capture
- Smart focus tracking
- 4K Dolby Vision time-lapse
- Audio Mix
- Slow-motion recording up to 4K 120fps
Battery
The iPhone Duo uses two built-in lithium-ion batteries, one on each side of the foldable device.
Apple rates battery performance at:
- Up to 44 hours of video playback using the outer display
- Up to 31 hours using the inner display
- Up to 24 hours of typical use when both displays are used equally
Fast charging can provide up to 50% charge in around 20 minutes using a 60W-capable adapter or higher. MagSafe and Qi2 wireless charging support up to 25W.
Design and Durability
The iPhone Duo uses a titanium foldable design, Ceramic Shield 2 on the front and Ceramic Shield on the back.
When open, it measures just 5.2mm thick and weighs 254 grams. When folded, its thickness is 11.3mm.
It also carries an IP68 rating for water and dust resistance.
Software and Connectivity
The iPhone Duo runs iOS 27, which has been redesigned for the foldable form factor. Users can run apps side by side, use different layouts on the larger screen and take advantage of new multitasking features.
Apple Intelligence and the new Siri AI are also supported.
Connectivity includes 5G, Wi-Fi 7, Bluetooth 6, Thread and Apple’s C2 modem. The device uses eSIM and does not support physical SIM cards.
Key iPhone Duo Features
- 7.6-inch folding inner display
- 5.4-inch outer display
- ProMotion up to 120Hz
- A20 Pro chip
- Titanium foldable design
- Dual 48MP Fusion cameras
- 12MP Center Stage camera
- Under-display inner FaceTime camera
- Duo Preview
- Smart Take
- Up to 2TB storage
- Up to 44 hours video playback
- 20-minute fast charging to 50%
- Wi-Fi 7
- Apple C2 modem
- iOS 27
- Apple Intelligence and Siri AI
- Apple Pencil support
- IP68 water and dust resistance
iPhone Duo: Quick Summary
The iPhone Duo brings Apple’s first foldable design to the iPhone lineup. Its combination of a 7.6-inch inner display, A20 Pro processor, dual 48MP camera system and long battery life makes it substantially different from Apple’s traditional iPhone models.
Starting at $1,999, it is available with up to 2TB of storage and comes in Night Sky and Star White.
Frequently Asked Questions
How much does the iPhone Duo cost?
The iPhone Duo starts at $1,999 for 256GB. The 512GB, 1TB and 2TB versions cost $2,199, $2,599 and $3,199 respectively.
What processor does the iPhone Duo use?
It uses Apple’s A20 Pro chip with a 6-core CPU, 7-core GPU with Neural Accelerators and Dual 16-core Neural Engine.
How many cameras does the iPhone Duo have?
It has two rear cameras: a 48MP Fusion Main and 48MP Fusion Ultra Wide camera, along with a 12MP Center Stage outer front camera and an under-display inner FaceTime camera.
Does the iPhone Duo have a 120Hz display?
Yes. Both the inner and outer displays support ProMotion with adaptive refresh rates up to 120Hz.
How much storage does the iPhone Duo have?
Storage options are 256GB, 512GB, 1TB and 2TB.
What colors does the iPhone Duo come in?
The iPhone Duo is available in Night Sky and Star White.
How long does the iPhone Duo battery last?
Apple rates it for up to 44 hours of video playback using the outer display and up to 31 hours using the inner display.
How fast does the iPhone Duo charge?
The iPhone Duo can reach up to 50% charge in around 20 minutes with a 60W-capable adapter or higher.
What operating system does the iPhone Duo use?
The iPhone Duo comes with iOS 27, including Apple Intelligence and Siri AI.
Where can I buy the iPhone Duo?
The iPhone Duo will be available through Apple’s online store, Apple retail locations and participating carriers starting October 23, 2026. Pre-orders begin October 16.
