Apple has finally made a phone that folds. The iPhone Duo opens like a small book into a 7.6 inch screen, and it comes with Apple’s new Siri AI built in. If you want to know what the iPhone Duo AI features really do, what the phone costs and whether it is worth the money, this guide gives you the facts.
Preorders open on Friday, 16 October 2026, and the phone reaches stores a week later, on 23 October.
Apple announced it on 9 September 2026. Apple CEO John Ternus called it “the most transformational change to iPhone since the original.” Below you will find what is new, what is missing and who should wait.
Quick answer: The iPhone Duo is Apple’s first foldable phone, with a 7.6 inch inner screen, a 5.4 inch outer screen and the A20 Pro chip. Its main AI features are Siri AI, which uses your personal context and what is on your screen, and Smart Take, which uses on device AI to take a photo when people pose. It starts at $1,999 in the US, with preorders from 16 October and sales from 23 October 2026.
What is the iPhone Duo?
The iPhone Duo is a book style foldable. Closed, you use a 5.4 inch outer screen. Open, you get a 7.6 inch inner screen that Apple says is 50 percent larger than the iPhone 18 Pro Max display.
It runs iOS 27.1, not iPadOS. You keep your iPhone apps, but you get new tools for the big screen. The biggest is Split View, which lets you open two apps side by side for the first time on an iPhone.
Inside is the same A20 Pro chip used in the iPhone 18 Pro. According to Apple’s official announcement, the chip has a 6 core CPU, a 7 core GPU and a new dual 16 core Neural Engine with twice the compute power for on device AI models.
iPhone Duo AI features explained
Most of the AI on the iPhone Duo comes from Apple Intelligence and Siri AI in iOS 27. A few features are designed around the folding screen. Here is what you get.
Siri AI with personal context
Siri AI is Apple’s new version of Siri. Apple describes it as “profoundly more personal, capable, and conversational.” It can draw on your messages, emails and photos to find what you need, and it can act on what is on your screen.
The big screen helps here. You can keep an article open on one side and talk to Siri AI on the other. Siri also gets its own app, with your past conversations synced privately through iCloud.
Engadget reports that Apple partnered with Google and used its Gemini models in training the systems behind Siri AI.
Smart Take and other camera tricks
Smart Take is the AI feature that feels most made for a foldable. On device AI models on the A20 Pro study the scene in real time and take the photo when people are posing. The person holding the phone no longer has to race a timer.
Other camera features use the outer screen:
- Duo Preview shows a live preview on the outer screen, so people can check their pose.
- Rear camera selfies use the better back cameras, with the preview on the outer screen.
- Kid Cue plays cartoon animations on the outer screen so a child looks at the camera.
- Siri Camera mode lets Siri see what you see to answer questions and take action.
Photo editing, calls and Safari
iOS 27 adds more AI tools that also work on the Duo:
- Spatial Reframing, Extend and an upgraded Clean Up help you fix a photo after you take it.
- Image Playground can now create photorealistic images.
- Call Context shows details such as a booking number when you call a business.
- Notify Me in Safari watches a web page for restocks or price drops.
Apple also plans support for the SynthID standard, which helps you identify images made or edited with AI. For more on this, read our guide on how to tell if a photo is AI generated.
Privacy, limits and where Siri AI is missing
Apple says Apple Intelligence uses on device processing and Private Cloud Compute, its cloud system built for privacy. Still, know these limits before you buy:
- Siri AI is rolling out in beta with iOS 27. It starts in English only. French, Japanese, Korean, Portuguese and Spanish are due in October.
- Siri AI will not be available in the EU at first.
- Siri AI is not available to users under 13.
- Some features that use server models, including Siri AI and Image Playground, have daily usage limits.
- Other Apple Intelligence features work in more languages, such as German, Chinese and Vietnamese, but Siri AI does not yet. Check Apple’s language list for your country before you buy.
iPhone Duo price and release dates
The iPhone Duo is the most expensive iPhone so far. It costs $700 more than the $1,299 iPhone 18 Pro Max and $800 more than the $1,199 iPhone 18 Pro, which uses the same chip.
| Storage | US price | UK price |
|---|---|---|
| 256GB | $1,999 | Ā£1,999 |
| 512GB | $2,199 | Ā£2,199 |
| 1TB | $2,599 | Ā£2,599 |
| 2TB | $3,199 | Ā£3,199 |
In India, the Duo starts at ā¹2,99,900 for 256GB. In Malaysia, Apple’s local announcement lists a starting price of RM9,499.
Here are the key dates, as listed by MacRumors and Apple:
- Preorders: Friday, 16 October 2026, from 5 am Pacific time (8 am Eastern).
- In stores: Friday, 23 October 2026, in more than 70 countries and regions, including the US, UK, India, China, Japan, Australia and the UAE.
- Second wave: 28 more countries and regions from Friday, 30 October.
- Colours: star white and night sky.
iPhone Duo key specs at a glance
| Feature | iPhone Duo |
|---|---|
| Screens | 7.6 inch inner and 5.4 inch outer Super Retina XDR, ProMotion |
| Chip | A20 Pro with dual 16 core Neural Engine |
| Rear cameras | 48MP Fusion Main (optical quality 2x zoom) and 48MP Fusion Ultra Wide |
| Battery | Up to 31 hours video on the inner screen, 44 hours on the outer screen, 24 hours of mixed use |
| Charging | 50 percent in about 20 minutes wired, or about 30 minutes with MagSafe or Qi2 |
| Thickness | 5.2 mm open, 11.3 mm closed |
| Weight | 254 g |
| Security | Touch ID in the side button (no Face ID) |
| Build | Grade 5 titanium frame, IP68 water resistance |
| SIM | eSIM only, worldwide |
| Storage | 256GB, 512GB, 1TB, 2TB |
Note what is missing. There is no Face ID and no separate telephoto lens, though the main camera offers an optical quality 2x zoom. TidBITS also notes there is no Action button.
iPhone Duo vs Galaxy Z Fold8 and Pixel 11 Pro Fold
Apple is late here. As the Associated Press noted, Samsung, Motorola and Google already sell foldables. Here is how the Duo compares, using US launch prices.
| iPhone Duo | Galaxy Z Fold8 | Galaxy Z Fold8 Ultra | Pixel 11 Pro Fold | |
|---|---|---|---|---|
| Starting price | $1,999 | $1,899 | $2,099 | $1,899 |
| Inner screen | 7.6 inch | 7.6 inch | 8 inch | 8 inch |
| Outer screen | 5.4 inch | 5.5 inch | 6.5 inch | 6.5 inch |
| Weight | 254 g | 201 g | 215 g | 239 g |
| Closed thickness | 11.3 mm | 9.7 mm | 8.9 mm | 10.1 mm |
| Chip | A20 Pro | Snapdragon 8 Elite Gen 5 | Snapdragon 8 Elite Gen 5 | Tensor G6 |
| Main AI assistant | Siri AI | Gemini Intelligence and Galaxy AI | Gemini Intelligence and Galaxy AI | Gemini Intelligence |
What this means for you:
- Price: The Duo sits in the middle. It costs $100 more than the Fold8 and the Pixel 11 Pro Fold, and $100 less than the Fold8 Ultra.
- Weight: The Duo is the heaviest of the group. 9to5Google points out that it is 53 grams heavier than the similarly shaped Fold8.
- Thickness: At 5.2 mm open, it is the thinnest iPhone ever, but it is the thickest phone here when closed.
- AI: Samsung says Gemini Intelligence can carry out tasks across more than 40 supported apps and services. Google’s Pixel also leans on Gemini. Apple’s pitch is Siri AI that knows your personal context and keeps privacy in focus.
If you use Google apps every day, an Android foldable may suit you better. If you use a Mac, iPad or Apple Watch, the Duo fits in more easily.
Who should buy the iPhone Duo?
Remember that Siri AI is not exclusive to the Duo, as the FAQ below explains. You pay mainly for the folding screen.
The iPhone Duo is a good fit if:
- You read, watch video or play games a lot and want a bigger screen that still fits in a pocket.
- You like to multitask, for example chatting with Siri AI on one side while reading on the other.
- You already use Apple devices and want to stay in that system.
- You take a lot of group and family photos and like the idea of Smart Take.
You may want to wait or pick something else if:
- You want the best value. The $1,199 iPhone 18 Pro has the same chip and the same Siri AI.
- You want a light phone. At 254 g, the Duo is heavier than its Android rivals.
- You need a telephoto lens, Face ID or an Action button.
- You live in the EU and want Siri AI right away.
- You do not use English and want Siri AI right away.
- You rely on a physical SIM card.
This is also a first generation product. Nobody yet knows how the hinge and inner screen hold up over years, so read independent reviews before you buy.
Frequently asked questions
When can I preorder the iPhone Duo?
Preorders start on Friday, 16 October 2026, at 5 am Pacific time. The phone goes on sale on Friday, 23 October in more than 70 countries and regions. Another 28 countries and regions follow on 30 October.
Do I need an iPhone Duo to use Siri AI?
No. Engadget reports that Siri AI comes with iOS 27 and works on the iPhone 15 Pro and newer. The Duo adds a bigger screen, Split View and folding camera features like Smart Take.
Is the iPhone Duo heavier than other foldable phones?
Yes. It weighs 254 g. The Pixel 11 Pro Fold weighs 239 g, the Galaxy Z Fold8 Ultra 215 g and the Galaxy Z Fold8 201 g.
Does the iPhone Duo work with Apple Pencil?
Not at launch. Apple says the phone will support the Apple Pencil with USB C later this year, so you can take notes, sketch or mark up documents on either screen.
Does the iPhone Duo have a SIM card slot?
No. Apple says the iPhone Duo uses an eSIM only design worldwide to save space for a bigger battery. Check that your mobile carrier supports eSIM before you order.
Final thoughts
The iPhone Duo is a bold first step for Apple. Its AI features are useful, especially Siri AI on a big screen and Smart Take for group photos. But most of the AI comes from iOS 27 and also reaches cheaper iPhones. The real reason to buy the Duo is the folding design.
If the price and weight do not put you off, it could replace both your phone and a small tablet. If you are unsure, try one in a store first.
Want to explore more? See our roundup of the latest AI gadgets, read about the future of AI gadgets, or compare with the more affordable iPhone 17e and its AI features.