Apple iPhone Duo is Apple’s first foldable iPhone and was officially announced on September 9, 2026. It has a 5.4-inch cover display and a 7.6-inch inner display when unfolded. It costs starting at $1,999 and has the Apple A20 Pro chip, 48MP Fusion camera system, and runs on iOS 27 with new foldable specific features. Pre-orders start October 16, availability begins October 23, 2026.
Introduction
Apple has officially jumped into the foldable smartphone market.
After years of competition between companies such as Samsung, Google, Huawei and other smartphone manufacturers, Apple has released the iPhone Duo, its first iPhone with a folding display.
Unlike a standard smartphone, the device uses a combination of a small outer screen and a much larger inner display. Apple is also bringing new software features designed for the folding form factor.
Here’s all you need to know about Apple’s new iPhone Duo.
Apple iPhone Duo Price and Release Date
The iPhone Duo starts at $1,999, making it Apple’s most expensive iPhone.
Apple has announced the following launch timeline:
| Detail | iPhone Duo |
| Starting Price | $1,999 |
| Announcement | September 9, 2026 |
| Pre-orders | October 16, 2026 |
| Availability | October 23, 2026 |
| Inner Display | 7.6 inches |
| Outer Display | 5.4 inches |
| Processor | A20 Pro |
Operating System | iOS 27 |
| Main Camera | 48MP Fusion |
| Colors | Star White, Night Sky |
Apple says the device will initially be available in two colors: Star White and Night Sky.
A New Foldable Design:
The biggest change is of course the styling.
The iPhone Duo has an outer 5.4-inch Super Retina XDR display when closed. Once opened, the user gets access to a far larger 7.6-inch inner display. Apple claims that the inner screen is 50 per cent larger than the iPhone 18 Pro Max display.
Both screens support ProMotion and Always-On and can get as bright as 3000 nits outdoors.
Apple has also made the two displays the same aspect ratio, so content can move between the outer and inner screens without needing to be resized.
Performance and A20 Pro Chip
Inside the iPhone Duo is Apple’s new A20 Pro chip, the same processor as the iPhone 18 Pro models.
The chip contains a 6-core CPU, 7-core GPU and a new dual 16-core Neural Engine designed to handle demanding AI workloads, Apple said.
The phone also has a custom vapor chamber for thermal management. This, Apple says, allows the device to maintain up to 35% better performance than the iPhone 17 Pro.
Camera Highlights
The foldable iPhone is not only the screen.
The iPhone Duo features a 48MP Fusion Main camera, with 2x Telephoto in optical quality. It also features a 48MP Fusion Ultra Wide Camera that can take macro photos.
The folding design also opens up new options for photography.
Users can preview shots on the outer display while using the rear cameras. Apple’s Center Stage front camera can adjust its field of view automatically.
The main camera is also capable of shooting 4K video at 120fps in Dolby Vision.
iOS 27 Is Designed for the Foldable Screen
iOS 27 has been tweaked by Apple for the iPhone Duo.
The phone opens up providing users with a larger screen to multitask with. Split View lets two apps appear side-by-side, and users can also open two windows of the same app, like Safari.
Apple’s own apps have been optimized for the new format, and companies including Netflix, Zoom and Slack are already updating their apps to work better on the larger display.
New Siri and Apple Intelligence
AI is also a big part of the iPhone Duo experience.
The phone supports Apple’s newer Siri AI, which is rolling out in beta with iOS 27. Apple’s Siri understands personal context, can interact with onscreen info and help users with tasks.
The A20 Pro also uses the Neural Engine for extra muscle for on-device AI.
Apple says it keeps things private and secure by using on-device processing and Private Cloud Compute in its approach to AI.
Apple Pencil Support
The larger inner display on the iPhone Duo also makes it more useful for productivity.
Apple says the device will support Apple Pencil with USB-C later this year so users can take notes, sketch and mark up documents on either display.
This might make the foldable iPhone more attractive to users who want something between a traditional smartphone and a small tablet.
But is the iPhone Duo priced right?
But the iPhone Duo, which costs $1,999, is clearly aimed at the high end of the smartphone market.
The main attraction is the combination of a pocket sized phone and a much larger screen. The foldable design also offers multitasking capabilities not available on a traditional iPhone in the same way.
But buyers will have to decide if the larger screen and new design are worth the hefty premium over Apple’s regular iPhone models.
FAQs
What is the Apple iPhone Duo?
iPhone Duo is the first foldable iPhone from Apple. It comes with a 5.4-inch outer display and a 7.6-inch inner folding display.
The iPhone Duo retails for $999.
Apple iPhone Duo starts at $1,999.
When is the iPhone Duo being released?
It will be available on October 23, 2026, with pre-orders starting on October 16, 2026.
What processor does the iPhone Duo have?
It is powered by the Apple A20 Pro chip, the same as on the iPhone 18 Pro models.
Does iPhone Duo support Apple Pencil?
Yes. Apple says USB-C Apple Pencil support will come later in 2026.
Is iPhone Duo Apple’s first foldable phone?
Yes . Officially, Apple refers to the iPhone Duo as its first foldable iPhone.
Summary
Apple iPhone Duo: One of the Most Significant Design Changes in the iPhone Lineup. Apple has not only upgraded cameras and performance, it has built a completely new foldable form factor with a 7.6-inch inner display, A20 Pro performance, upgraded cameras and foldable-focused iOS 27 features.
Its starting price of $1,999 puts it in the premium category, but the combination of a compact outer screen and larger inner display could make it one of the most interesting smartphone launches of 2026.
The iPhone Duo will be available starting October 23, 2026, giving Apple a major new entry in the increasingly competitive foldable smartphone market.