Apple has finally entered the foldable smartphone market.
The company has unveiled its first foldable iPhone, officially named iPhone Duo, at its September 9, 2026 launch event. While the phone is being widely referred to as the iPhone 18 Duo, Apple itself is using the simpler iPhone Duo name.
The launch is a big moment for Apple. The company has stayed away from foldable phones while Samsung, Huawei and other smartphone makers have already spent years developing the category. Now, Apple is betting that its familiar ecosystem, software and hardware design can give the foldable iPhone a different appeal.
iPhone 18 Duo: A new foldable design from Apple
The iPhone Duo uses a book-style folding design. When closed, the phone has a 5.4-inch outer Super Retina XDR display, making it practical to use like a regular smartphone.
Open it up and the device reveals a much larger 7.6-inch inner Super Retina XDR display. Apple says the inner screen is 50 percent larger than the display on the iPhone 18 Pro Max.
Both screens are designed to maintain visual continuity, so content can move between the closed and open modes without feeling completely different.
Apple has also added a nano-texture finish to the inner display to help reduce reflections and make the fold less noticeable during everyday use.
iPhone Duo price: Starts at $1,999
The biggest surprise for many buyers may be the price.
The iPhone Duo starts at $1,999 for the 256GB model. Apple is also offering higher storage configurations, with the top 2TB version reaching $3,199.
That makes the iPhone Duo one of Apple’s most expensive smartphones to date and puts it directly into the premium foldable-phone segment.
For buyers who have been waiting for Apple’s take on a foldable phone, the price will clearly be one of the biggest factors in deciding whether to make the switch.
A20 Pro chip powers the iPhone Duo
Under the hood, the iPhone Duo is powered by Apple’s new A20 Pro chip.
Apple has paired the processor with a custom thermal-management system and a vapor chamber to help the phone maintain performance during demanding tasks.
The foldable also uses a dual-battery architecture. Apple says the combination is designed to deliver strong all-day battery life despite the phone’s thin foldable design.
Dual 48MP cameras on the back
Apple has not treated the camera system as an afterthought.
The iPhone Duo comes with two 48MP rear cameras, giving users a high-resolution main camera and an ultra-wide option.
The foldable design also brings some camera features that are specifically designed around having two displays. One example is the ability to use the outer screen as a preview when taking photos.
Apple has also added an under-display camera for the inner screen, keeping the large folding display cleaner when the camera is not being used.
Touch ID returns on the iPhone Duo
One of the more noticeable changes is Apple’s biometric authentication system.
Instead of Face ID, the iPhone Duo uses Touch ID built into the side button. This makes authentication possible whether the phone is open or closed.
It is an interesting move from Apple, particularly because Face ID has been a major part of the iPhone experience for years.
Built for multitasking
The bigger 7.6-inch screen isn’t just about watching videos.
Apple has designed iOS 27 to take better advantage of the foldable format, allowing users to work with multiple apps and use split-screen functionality.
The larger display could make the iPhone Duo particularly interesting for people who frequently read documents, respond to messages, browse websites or work from their phone.
Apple has also confirmed Apple Pencil support, adding another reason why the larger internal screen could be useful beyond traditional smartphone tasks.
iPhone Duo release date and pre-orders
Apple’s first foldable iPhone won’t be available immediately.
Pre-orders for the iPhone Duo begin October 16, 2026, while the phone will officially go on sale on October 23, 2026.
The device will initially be offered in Star White and Night Sky finishes.
Is the iPhone 18 Duo really called iPhone Duo?
This is worth clearing up because the name can be confusing.
Apple’s official announcement calls the device iPhone Duo. The company has not officially branded it as “iPhone 18 Duo.”
However, because the phone was announced alongside the iPhone 18 Pro and iPhone 18 Pro Max, some reports and search queries are referring to it as the iPhone 18 Duo.
For SEO purposes, “iPhone 18 Duo” is likely to remain a common search term, but readers should know that iPhone Duo is Apple’s official name.
iPhone 18 Duo specifications at a glance
| Feature | iPhone Duo |
| Official name | iPhone Duo |
| Display when closed | 5.4-inch Super Retina XDR |
| Inner display | 7.6-inch Super Retina XDR |
| Processor | A20 Pro |
| Rear cameras | Dual 48MP |
| Biometric security | Touch ID |
| Storage | 256GB to 2TB |
| Operating system | iOS 27 |
| Apple Pencil | Supported |
| Starting price | $1,999 |
| Pre-orders | October 16, 2026 |
| Release date | October 23, 2026 |
| Colours | Star White, Night Sky |
Apple’s biggest iPhone design change in years
The iPhone Duo is more than another yearly iPhone upgrade. It represents Apple’s first major move into a smartphone design that competitors have already been experimenting with for years.
The real test, however, will be the price.
At $1,999, the iPhone Duo is aimed squarely at premium buyers. Apple is clearly hoping that the combination of its ecosystem, iOS experience, camera technology and foldable design will be enough to convince existing iPhone users to spend considerably more.
For now, one thing is certain: Apple has finally made a foldable iPhone. Whether the iPhone Duo can turn foldable phones from a niche product into a mainstream choice is the next big question.
Frequently Asked Questions
What is the official name of Apple’s foldable iPhone?
Apple officially calls it the iPhone Duo, although it is often referred to online as the iPhone 18 Duo.
How much does the iPhone Duo cost?
The iPhone Duo starts at $1,999 for 256GB and goes up to $3,199 for the 2TB version.
When will the iPhone Duo be available?
Pre-orders begin October 16, 2026, with retail availability from October 23, 2026.
What is the iPhone Duo screen size?
It has a 5.4-inch outer display and a 7.6-inch inner foldable display.
Does the iPhone Duo support Apple Pencil?
Yes. Apple has confirmed Apple Pencil support for the foldable iPhone.
Does the iPhone Duo have Face ID?
No. The iPhone Duo uses Touch ID integrated into the side button.
