After years of speculation, Apple has finally entered the foldable phone space with the iPhone Duo. The name leans into the phone's foldable-screen identity, and it brings some noteworthy features never before seen on an iPhone. So, here is everything you need to know about the iPhone Duo, including specifications and pricing.
Why the iPhone Duo Name?
iPhone Duo is quite an unconventional name that no one could have guessed. It was reported by Apple analyst Mark Gurman ahead of the release. The name has spread a lot of chatter online, since early expectations pointed to iPhone Fold or Ultra. This would have followed a similar naming convention to Samsung's foldables.
That shifted to the iPhone Ultra, following reports that Apple might want to align its first folding phone with a family of Ultra-branded products. But iPhone Duo makes more sense, as it is neither a direct response to Samsung's existing lineup nor does it sit above the iPhone 18 Pro Max in specifications.
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Apple iPhone Duo: Design and Build
The iPhone Duo is a book-style foldable, like Samsung's Z Fold series. However, it boasts a wider and shorter cover screen, almost the size of the iPhone 13 mini. But with a wider, passport-like footprint, opening into a 4:3 inner display. Similar to the recently launched Galaxy Z Fold 8.
The iPhone Duo is built with Grade 5 titanium, which provides rigidity at stress points. The hinge opens completely flat using a custom variable-torque mechanism and carbon fibre support plates.
It is also rated IP68 for dust and water protection, making it the only other folding phone out there besides the Pixel 11 Pro Fold.
It measures 11.3 mm folded and 5.2 mm unfolded, which makes the Duo thinner than the 5.6 mm iPhone Air. It is still not the thinnest foldable available, since Samsung's Z Fold 8 Ultra comes in at 4.1 mm open. Given the titanium frame, the iPhone Duo weighs 252 grams.
The iPhone Duo colour options are Star White and Night Sky, with the latter being a dark bluish tone.
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iPhone Duo: Face ID or Touch ID?
For the first time in nearly a decade on a flagship iPhone, Face ID is gone. In its place, Apple is using a Touch ID sensor built into the side button, while the volume buttons sit at the top, similar to the iPad. The reason behind this is the lack of space for the TrueDepth camera under the display.
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Apple iPhone Duo: Display and Crease
The iPhone Duo features a square-shaped 5.4-inch Super Retina XDR OLED cover display. It has a 1398 x 2034 resolution, while the inner folding display is a 7.6-inch Super Retina XDR wide OLED folding display with a 1878 x 2670 resolution and a 4:3 aspect ratio.
Both the inner and the outer screens are ProMotion LTPO displays with a 120 Hz refresh rate and 3,000 nits peak brightness. The main wide screen has a nano-texture anti-reflective coating.
The crease is the most crucial aspect of any foldable phone. This is why Apple has worked hard on a creaseless display with a multilayer lamination and a custom coating to prevent the folding display from getting scratched. While the cover screen has Ceramic Shield 2 glass for protection.
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Apple iPhone Duo: Processor and Storage
The iPhone Duo runs Apple's new A20 Pro chipset, based on the same 2 nm node as the iPhone 18 Pro. As per Apple, it offers 40% better results in sustained performance and has a vapour chamber to prevent the phone from getting too hot.
The iPhone Duo has 12 GB of RAM onboard and comes in 4 storage configurations, ranging from:
- 256 GB
- 512 GB
- 1 TB
- 2 TB
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Modem and SIM Slot
For connectivity, Apple is using its second-generation C2 modem, which supports mmWave 5G. This is the successor to the C1X modem, seen on the iPhone 17e. Moreover, the iPhone Duo is eSIM-only, just like the iPhone Air, and supports regional carriers like Jio, Airtel and Vi in India.
iPhone Duo: Cameras
The iPhone Duo features a dual camera system, arranged horizontally. This includes a wide 48 MP Fusion camera that can take 2x optical-quality images and a 48 MP ultra-wide lens, like the base iPhone 17. However, there is no telephoto lens like the Pro models. The device supports 4K Dolby Vision recording @ 120 FPS.
On the front, there is a 12 MP Centre Stage selfie camera on the cover screen and another under-display FaceTime selfie camera on the inner main display. However, Apple has not specified the exact sensor size of the inner camera.
Apple iPhone Duo: Battery and Charging
Apple rates the iPhone Duo at up to 31 hours of video playback with the main folding display, and 44 hours of video playback when only using the cover screen. This is more than the iPhone 17 Pro Max's battery life. This is made possible with a dual-cell design and the efficient A20 Pro processor.
Plus, it also charges faster thanks to 60W wired charging, which can top up the phone to 50% in 20 minutes, according to Apple. It also supports 25W wireless charging.
iOS Implementation on iPhone Duo
The iPhone Duo ships out of the box with the iOS 27 update, including the newly rebuilt Siri AI and all the other Apple Intelligence features included in the update.
The version running on the Duo adds split-screen and multi-window handling for the inner display, essentially a trimmed-down take on iPadOS multitasking. Plus, it has a unique layout with most menus and options aligned towards the side instead of at the bottom of the phone, allowing you to use the phone more easily with one hand when the phone is closed or open.
Plus, it also has support for Apple Pencil stylus, allowing users to doodle, write and sign documents on the larger screen, which even Samsung's foldables don't offer anymore.
Apple iPhone Duo: Pricing
The iPhone Duo starts in India at Rs 2,99,900 for the 256GB configuration, going up to Rs 4,49,900 for the 2 TB storage option. Here is the pricing breakdown for all storage variants.
- 256 GB: Rs 2,99,900
- 512 GB: Rs 3,24,900
- 1 TB: Rs 3,74,900
- 2 TB: Rs 4,49,900
iPhone Duo Release Date
The iPhone Duo was announced on September 9, 2026, alongside the iPhone 18 Pro series, but it does not go on sale with them. Apple is targeting an October release, with the iPhone Duo pre-orders starting on October 16, 2026, and sales from October 23, 2026.
iPhone Duo Specifications
Let's take a recap of the iPhone Duo key specifications:
- Cover display: 5.4-inch, 1398 x 2034
- Inner display: 7.6-inch, 1878 x 2670
- Dimensions: 11.2 mm folded, 5.6 mm unfolded
- Build: Titanium frame
- Chip: Apple A20 Pro (2 nm)
- RAM: 12 GB
- Storage: 256GB / 512GB / 1TB / 2TB
- Rear cameras: 48 MP wide + 48 MP ultra-wide
- Front camera: 12 MP Centre Stage
- Battery: Up to 31 hours of video playback with the inner screen and 44 hours with the outer screen
- Authentication: Touch ID in the side button
- Modem: Apple C2 with mmWave 5G
- SIM: eSIM only
- Software: iOS 27 with Apple Intelligence and Apple Pencil support
- Colours: Star White, Night Sky
- Starting price: Rs 2,99,900
Frequently Asked Questions
What is Apple's foldable iPhone called?
Apple's first foldable phone is named the iPhone Duo. Apple dropped the iPhone Ultra and iPhone Fold names that had appeared in leaks for most of 2026.
How much does the iPhone Duo cost?
It starts at Rs 2,99,900 for 256 GB and runs to Rs 4,49,900 for the highest 1 TB storage variant.
Does the iPhone Duo have Face ID?
No. There is no space for the TrueDepth camera array, so Apple uses a Touch ID sensor built into the side button instead.
Does the iPhone Duo support a physical SIM?
No. It is eSIM only, though Jio, Airtel and Vi all support eSIM in India.
Apple has arrived late to foldables, but it is packing some serious hardware chops with an IP68 rating, 60W fast charging, 31 hours of video playback and a redesigned iOS interface. You can tell that Apple is not second-guessing its first foldable and is jumping into the market with a well-rounded device.
