Sold by Apple now · shown in Night Sky
iPhone Duo
iPhone Duo measures 117.8 × 84.1 × 11.3 mm and weighs 254 g, with a 7.6-inch folding display and the A20 Pro chip.
| Introduced | 2026 |
|---|---|
| Apple sells it new | Yes, from $1,999 (US) |
| Height | 117.8 mm (4.64 in) |
| Width | 84.1 mm folded · 164.6 mm open |
| Thickness | 11.3 mm folded · 5.2 mm open |
| Weight | 254 g (8.96 oz) |
| Display | 7.6″ inner folding display · 5.4″ outer display |
| Resolution | 1878 × 2670 at 430 ppi inner · 1398 × 2034 at 460 ppi outer |
| Refresh rate | 120 Hz ProMotion |
| Top of screen | Dynamic Island |
| Unlock | Touch ID in the side button |
| Chip | A20 Pro |
| Rear cameras | Dual 48MP |
| Video playback | Up to 44 hours |
| RAM | Not confirmed (12 GB expected) |
| Storage | 256 GB, 512 GB, 1 TB, 2 TB |
| US price by storage | 256 GB $1,999 ($7.81/GB) · 512 GB $2,199 ($4.29/GB) · 1 TB $2,599 ($2.54/GB) · 2 TB $3,199 ($1.56/GB) |
| Colors (2) | Night Sky, Star White |
Source: Apple technical specifications for iPhone Duo; prices from apple.com (US, with carrier activation), checked October 2026. Apple does not publish RAM: see MacRumors (Xcode data).
In context
How big is iPhone Duo, really?
Of the 34 iPhones on this site, iPhone Duo is the 5th smallest by the size of its front (117.8 × 84.1 mm), the heaviest at 254 g, and has the largest screen at 7.6 inches unfolded. Folded it is short but unusually wide and thick, so it sits in the hand more like a small paperback than a phone.
Its 5.4-inch outer display is about 77.7 × 113 mm (worked out from the diagonal and its 1398 × 2034 pixel grid), so the screen covers roughly 89% of the front. The front camera sits in the Dynamic Island, a pill-shaped cut-out that also shows live activity; unlike other recent iPhones it unlocks with Touch ID in the side button rather than Face ID. At 460 pixels per inch, individual pixels are not visible at a normal viewing distance.
Compare
iPhone Duo against…
Latest changes
What changed for iPhone Duo
What changed since launch that could change your pick. All changes by month
Japan and South Korea restrict Duo and Pro Max walk-in purchases
Apple’s local pages say iPhone Duo and iPhone 18 Pro Max cannot currently be bought on a walk-in basis at Apple Stores in Japan and South Korea. Japan requires a reservation; South Korea directs shoppers to order online for delivery or pickup. The notices give no end date and do not establish policy in other countries. Official pages checked October 19, 2026.
Source: Apple Japan (South Korea also checked in the analysis) ↗Verizon will charge $10 a month for iPhone Handoff
iPhone Handoff, new in iOS 27, lets one phone number move between two iPhones, for example an iPhone Duo for going out and an iPhone 18 Pro for work. You choose which iPhone is active and can switch at any time. Verizon says it will support Handoff for $10 a month on compatible iPhones running iOS 27, and calls it coming soon without a start date. Other carriers set their own price, so ask yours before you plan on carrying two iPhones.
Source: Verizon ↗iPhone Duo pre-orders open, in stores October 23
Apple opened pre-orders for iPhone Duo on October 16. It starts at $1,999 in the US and reaches stores on Friday, October 23.
Source: Apple Newsroom ↗
What reviewers say
On iPhone Duo
Their conclusions, in our words. Follow the links for the full reviews.
Tom's Guide · Oct 2026
An opinion piece: the writer found the excitement around the Duo made their brand-new 18 Pro Max feel unexciting, a useful gut-check for buyers torn between the two.
My iPhone 18 Pro Max just got delivered and I immediately regret the purchase — and I think iPhone Duo is to blame ↗9to5Mac · Oct 2026
A spec-by-spec rundown that leans practical: with Duo orders already slipping into 2027, the 18 Pro is the pick for anyone who needs a phone soon.
iPhone Duo vs iPhone 18 Pro: Here’s every key difference ↗MacRumors · Oct 2026
The Duo's extra cost buys a big folding screen and side-by-side multitasking, while the Pro models keep the more versatile cameras, Face ID and a much lower price.
iPhone 18 Pro vs. iPhone Duo Buyer's Guide: Which Should You Choose? ↗CNET · Oct 2026
CNET sees the Duo as a niche buy for people who want a pocketable reading and multitasking screen, and points camera, battery and durability buyers to the iPhone 18 Pro Max instead.
The $2,000 Duo: Who Is Apple's First Folding iPhone Actually For? ↗
More reviewer perspectives (3)
CNET · Sep 2026
Hands-on: a smooth, premium hinge and Apple Pencil support, but only two rear cameras and Touch ID instead of Face ID at a $1,999 starting price.
I Got My Hands on the iPhone Duo, Apple's First Foldable Phone ↗Yahoo Tech · Sep 2026
Pick the Duo for screen space and if you simply want a foldable; pick the 18 Pro Max for photography, video and the best camera controls.
Apple iPhone Duo vs. iPhone 18 Pro Max: How to decide between them ↗ZDNET · Sep 2026
Sticks with the 18 Pro: the Duo has no Pro camera controls or telephoto, swaps Face ID for Touch ID, is awkward one-handed when open and costs $800 more at 512GB.
iPhone Duo or 18 Pro? 8 reasons why I'm skipping Apple's first foldable ↗
FAQ
About iPhone Duo
- How big is iPhone Duo?
- iPhone Duo measures 117.8 × 84.1 × 11.3 mm and weighs 254 g, with a 7.6-inch folding display and the A20 Pro chip. Unfolded it is 164.6 mm wide and 5.2 mm thin.
- When did iPhone Duo come out?
- Apple introduced iPhone Duo in 2026. Apple still sells it new, from $1,999 in the US.
- How much RAM does iPhone Duo have?
- Apple has not said, and it has not been confirmed in Apple's developer tools yet. iPhone Duo uses the A20 Pro chip, the same as iPhone 18 Pro, which has 12 GB, so 12 GB is expected.
- What colors does iPhone Duo come in?
- 2 finishes: Night Sky, Star White.
News & analysis
What changes your choice.
Sourced news, with the comparison and buying implications explained. All news & analysis →
iPhone Duo in Japan and Korea: Reserve Before You Go
Apple limits walk-in sales of iPhone Duo and 18 Pro Max in Japan and South Korea. What to check before visiting a store or planning a purchase abroad.
Verizon iPhone Handoff Costs $120 a Year: Who Benefits?
Verizon plans to charge $10 a month to move one number between two iPhones. Here is the extra annual cost and what to check before buying a second phone.