Apple has launched the iPhone Duo, its first foldable iPhone. Many people are searching for it as the “iPhone 18 Duo” because Apple unveiled it alongside the iPhone 18 Pro and iPhone 18 Pro Max on September 9, 2026.
The iPhone Duo uses a book-style folding design, opening into a much larger inner display. Apple describes it as its biggest iPhone design change since 2007.
The phone also comes with a new A20 Pro chip, dual batteries, and a camera system designed specifically for its folding design.
Quick Answer
The iPhone Duo is Apple’s first foldable iPhone and features:
- Outer display: 5.4 inches
- Inner display: 7.6 inches
- Processor: A20 Pro
- Operating system: iOS 27
- Colors: Star White and Night Sky
- Starting price in India: Rs 2,99,900
- Base storage: 256GB
- Pre-orders: October 16, 2026
- Sales begin: October 23, 2026
Read more:https://www.apple.com/in/iphone-duo/
What Is the iPhone Duo?
The iPhone Duo is a book-style foldable smartphone from Apple.
When closed, it has a compact design that Apple says is similar in size to a passport. When opened, the phone reveals a large inner display that can work more like a small tablet.
Apple says the iPhone Duo is its thinnest iPhone ever when unfolded.
Key design features
- Grade 5 titanium frame
- Ceramic Shield glass on the front and back
- Folding hinge with more than 100 parts
- Built-in magnets help the phone close
- IP68 dust and water resistance
- eSIM-only connectivity
- Camera Control button
- Touch ID integrated into the side button
Apple says development of the foldable iPhone began years ago. The company focused heavily on the hinge, screen crease and software before bringing the device to market.
iPhone Duo Design and Display
The iPhone Duo has two displays, one on the outside and another on the inside.
| Display | Size | Main Features |
|---|---|---|
| Outer display | 5.4 inches | Super Retina XDR, ProMotion, Always-On |
| Inner display | 7.6 inches | Super Retina XDR, ProMotion, Always-On, nano-texture |
Apple says the inner display is 50% larger than the iPhone 18 Pro Max display.
Both displays support:
- Super Retina XDR
- Pro Motion
- Always-On display
- Up to 3,000 nits outdoor peak brightness
The inner display also uses a nano-texture finish designed to reduce glare and make the folding crease less noticeable.
A FaceTime camera is hidden under the inner display, meaning there is no traditional notch or hole-punch cutout on the large screen.
Read more:https://www.apple.com/in/iphone-duo/specs
Durability
The iPhone Duo uses a titanium frame and Ceramic Shield glass.
Apple says the front glass offers three times better scratch resistance than the previous-generation version.
The phone also has an IP68 rating, allowing it to withstand dust and brief exposure to water up to six meters for 30 minutes.
Touch ID and Camera Control
Instead of a Face ID notch, the iPhone Duo uses Touch ID in the side button.
The phone also includes Camera Control, which provides quick access to the camera and supports Apple’s new Siri Camera feature.
iPhone Duo Price in India and the US
The iPhone Duo starts at Rs 2,99,900 in India for the 256GB model.
iPhone Duo India Price
| Storage | Price in India |
|---|---|
| 256GB | Rs 2,99,900 |
| 512GB | Rs 3,24,900 |
| 1TB | Rs 3,74,900 |
| 2TB | Rs 4,49,900 |
iPhone Duo US Price
In the US, the iPhone Duo starts at $1,999 for 256GB.
The difference between the US and Indian prices is attributed to factors such as:
- Import duties
- GST
- Early production units not being manufactured in India
For comparison, the iPhone 18 Pro series starts at Rs 1,64,900 in India.
That makes the iPhone Duo considerably more expensive than Apple’s standard flagship models.
Apple also offers monthly payment options in the US through its Apple Upgrade program in partnership with Klarna. Eligible buyers can pay from $57.99 per month for 24 months, depending on credit approval and storage configuration.
iPhone Duo Camera Features
The iPhone Duo comes with a dual-camera setup:
- 48MP Fusion Main camera
- Built-in 2x telephoto
- 48MP Fusion Ultra Wide camera
Apple says the camera system is designed for fast photography and improved low-light performance.
The larger sensor and wider aperture are intended to help the phone capture better images in challenging lighting.
Foldable-specific camera features
The folding design enables several camera features that are not available on standard iPhone models.
Smart Take
Uses on-device AI to automatically capture a photo when people are posing, helping users join group photos without rushing.
Duo Preview
Shows a live camera preview on the outer display, allowing the subject to check the framing before the picture is taken.
Duo FaceTime
Allows someone to participate in a video call using the outer display.
Kid Cue
Displays short Peanuts animations on the outer screen to attract a child’s attention during photography.
Video recording
The iPhone Duo can record:
- 4K video
- Up to 120fps
- Dolby Vision
- Cinematic effects after recording
iOS 27 and Multitasking
Apple designed iOS 27 around the foldable form factor.
Menus and controls can move toward the side of the display, giving apps more room when the phone is opened.
Split View
One of the biggest software additions is Split View.
It allows users to run two apps side by side on the 7.6-inch inner display.
For example, users could:
- Browse a shopping website while comparing prices
- Watch a video while taking notes
- Make a video call while checking another app
- Read an article while researching information
This gives the iPhone Duo functionality closer to a small tablet.
Siri AI
The phone also supports Apple’s newer Siri AI features.
Siri AI can:
- Understand information displayed on the screen
- Answer questions about on-screen content
- Search across messages, emails and photos
- Help users write text
- Process information using on-device technology and Private Cloud Compute
Apple says these technologies are designed to protect users’ personal data.
iPhone Duo Chip, Battery and Charging
The iPhone Duo is powered by Apple’s A20 Pro chip, the same processor used in the iPhone 18 Pro models.
Apple says the A20 Pro delivers:
- Up to 35% better sustained performance than the iPhone 17 Pro
- Faster CPU performance
- Faster GPU performance
- Improved neural-engine performance
- Better thermal management
The chip is connected to a custom vapor chamber to help manage heat during demanding tasks such as gaming and long video calls.
Dual-battery design
Instead of one battery, the iPhone Duo has two batteries, with one located on each side of the hinge.
Apple says software balances power between the two battery cells.
| Usage | Battery life |
|---|---|
| Typical use with both displays | Up to 24 hours |
| Video playback using outer screen | Up to 44 hours |
| Video playback using inner screen | Up to 31 hours |
Actual battery life can vary depending on how the phone is used.
Charging
The iPhone Duo supports fast charging:
- Wired: 50% in around 20 minutes
- MagSafe/Qi2 wireless: 50% in around 30 minutes
Apple notes that these figures are based on its own testing and actual results can vary.
Read more:iPhone 18 Pro and Pro Max Launched: Price, Features, Camera and Everything You Need to Know
iPhone Duo vs iPhone 18 Pro Max
Both phones use the A20 Pro chip, so the biggest differences are not raw processing power.
Instead, buyers are mainly choosing between a traditional flagship phone and a foldable design.
| Feature | iPhone Duo | iPhone 18 Pro Max |
|---|---|---|
| Design | Foldable | Traditional |
| Inner display | 7.6-inch | No inner display |
| Processor | A20 Pro | A20 Pro |
| Battery | Two batteries | Single battery |
| Multitasking | Split View | Standard iPhone layout |
| Weight | Heavier | Lighter |
| Price | Much higher | Lower |
| Main advantage | Large foldable display | Simpler, lighter design |
The iPhone 18 Pro Max keeps a familiar single-screen design and does not require a hinge or second battery.
The iPhone Duo, meanwhile, offers a much larger inner display and foldable-specific features.
Which one should you buy?
Choose the iPhone 18 Pro Max if you want:
- A familiar smartphone design
- Lower price
- Lighter weight
- A simpler form factor
Choose the iPhone Duo if you want:
- A much larger screen
- Foldable design
- Split-screen multitasking
- Foldable-specific camera features
- A more tablet-like experience
iPhone Duo Accessories
Apple has released two accessories specifically for the iPhone Duo.
iPhone Duo Case
- Price: $79
- Colors: Sand and navy blue
- Two-part design
- Supports folding and unfolding
- Compatible with MagSafe and Qi2
iPhone Duo Folio
- Price: $129
- Colors: Taupe and navy blue
- Built-in kickstand
- Supports different viewing angles
- Compatible with MagSafe and Qi2
Apple also confirmed that Apple Pencil support is coming later this year through a software update.
This will allow users to write notes and sketch on either display using a USB-C Apple Pencil.
iPhone Duo Release Date and Availability
Apple announced the iPhone Duo on September 9, 2026.
Important dates
| Event | Date |
|---|---|
| Announcement | September 9, 2026 |
| Pre-orders | October 16, 2026 |
| Sales begin | October 23, 2026 |
| Additional countries | October 30, 2026 |
The phone will initially be available in more than 70 countries, including:
- India
- United States
- United Kingdom
It will reach another 28 countries by October 30, 2026.
eSIM-only design
The iPhone Duo does not support a physical SIM card.
It uses eSIM only, which Apple says helps free up internal space needed for the dual-battery design.
Apple has also introduced iPhone Handoff with iOS 27, allowing users to switch their phone number between two iPhones on supported carriers.
Frequently Asked Questions
Has the iPhone 18 launched?
Yes. Apple launched the iPhone 18 Pro, iPhone 18 Pro Max and the foldable iPhone Duo on September 9, 2026.
Pre-orders for the standard iPhone 18 Pro models opened on September 12, 2026.
What is the iPhone Duo?
The iPhone Duo is Apple’s first foldable iPhone. It opens like a book and features a 5.4-inch outer display and a 7.6-inch inner display.
It is powered by the A20 Pro chip.
What is the price of the iPhone Duo?
In India, the iPhone Duo starts at Rs 2,99,900 for 256GB.
The 2TB version costs Rs 4,49,900.
In the US, the starting price is $1,999.
Is the iPhone Duo coming out in 2026?
Yes. Pre-orders begin on October 16, 2026, and general sales begin on October 23, 2026 in India, the US and other countries.
Does the iPhone Duo support a physical SIM?
No. The iPhone Duo uses eSIM only.
Apple says this helps free up internal space for the phone’s dual-battery system.
What colors does the iPhone Duo come in?
The iPhone Duo is available in:
- Star White
- Night Sky
Both versions feature a titanium frame with a mirror-polished finish.
Is the iPhone Duo worth buying over the iPhone 18 Pro Max?
It depends on what you want.
The iPhone Duo is better suited to people who want a larger display, foldable design and multitasking features.
The iPhone 18 Pro Max is the simpler choice for people who prefer a traditional, lighter and less expensive iPhone.
