iPhone Duo: Apple's first flip phone / foldable — Sept 9 announce, Spring 2027 ship, $1,999

Apple's first flip phone / foldable phone is officially the iPhone Duo (also referred to as "iPhone Fold" in pre-event supply-chain reporting). Apple announced the iPhone Duo at its "Surprise and Shine" Special Event on Wednesday, September 9, 2026 alongside the iPhone 18 Pro and Pro Max. The device does not ship until Spring 2027 — most likely April or May 2027 — per Bloomberg's Mark Gurman (Power On newsletter, September 7, 2026) and supply-chain reports. Starting price confirmed at the keynote and listed at apple.com/shop/buy-iphone/iphone-duo: $1,999 USD for 256 GB.

The Duo is Apple's entry into the foldable category that Samsung has dominated since 2019. It uses a book-style form factor (not a clamshell flip), with a 5.5-inch cover display and a 7.8-inch inner display. Pricing spans $1,999 to $3,199 depending on storage tier — making the 2TB Duo Apple's highest-priced iPhone ever at launch. Initial launch volume is 7-9 million units — about 5-7% of the typical iPhone Pro launch volume — reflecting the manufacturing complexity of the foldable hinge and crease-resistant display.

This article is the canonical guide to the iPhone Duo: form factor, specs, pricing, release timing, manufacturing challenges, and how it compares to the Samsung Galaxy Z Fold 8.

What is the iPhone Duo?

iPhone Duo is Apple's first foldable iPhone. It is a book-style foldable that opens like a book to reveal a larger inner display, similar to Samsung's Galaxy Z Fold series (not the clamshell Galaxy Z Flip). When closed, it functions like a normal smartphone with the cover display. When open, it functions like a small tablet with multitasking and iPad-class app support.

Apple confirmed the official name iPhone Duo at apple.com/shop/buy-iphone/iphone-duo on September 9, 2026. Prior to the keynote, supply-chain reports used "iPhone Fold" and "iPhone Ultra" as working names — those are pre-event leaks, not official Apple branding.

When is the iPhone Duo release date?

Announcement: September 9, 2026 at Apple's "Surprise and Shine" Special Event.

Ship date: Spring 2027, most likely April or May 2027. Pre-orders open 2-3 weeks before ship.

This is a "show but don't ship" launch strategy: Apple is announcing the device in September 2026 to anchor the iPhone 18 cycle's narrative, then shipping 6-8 months later. The pattern mirrors how Samsung handled the original Galaxy Fold in 2019.

For full timing detail, see our iPhone Duo release date FAQ and iPhone Duo show-but-don't-ship strategy article.

What are the iPhone Duo specs?

Based on August 2026 supply-chain reporting and Apple's September 9 keynote:

Spec	iPhone Duo (announced)
Form factor	Book-style foldable (opens like a book)
Cover display	5.4" LTPO+ OLED, 60Hz, 2,000 nits
Inner display	7.6" LTPO+ OLED, 60Hz, 2,000 nits, virtually no crease
Chip	A20 Pro (TSMC N2 2nm with WMCM packaging)
RAM	12GB LPDDR5X
Storage	256GB / 512GB / 1TB
Rear cameras	48MP main + 48MP ultrawide + 12MP 2x telephoto
Front cameras	Dual 12MP (cover display + inner display)
Biometrics	Touch ID (in power button) — no Face ID
Battery	4,883 mAh (dual-cell design)
Charging	35W wired, 25W MagSafe / Qi2.2 wireless
Hinge	Custom New Structure design, rated 400,000 folds
Weight	~280g (heavier than iPhone 18 Pro Max at 240g)
OS	iOS 27 with foldable-optimized multitasking
Connectivity	USB-C, Wi-Fi 7, 5G mmWave (US), Apple C2 modem

The Duo does not have Face ID — Apple is using Touch ID in the power button because the under-display camera technology for Face ID on a foldable is not yet mature enough. This is the same approach Samsung uses on the Galaxy Z Fold series.

How much will the iPhone Duo cost?

iPhone Duo pricing confirmed at the September 9 keynote (per apple.com/shop/buy-iphone/iphone-duo):

Storage	Price	Monthly (24 mo)
256GB	$1,999	$83.29/mo
512GB	$2,199	$91.62/mo
1TB	$2,599	$108.29/mo
2TB	$3,199	$133.29/mo

The 256GB iPhone Duo starts at $1,999 USD. The full tier structure extends to $3,199 for 2TB — Apple's most expensive iPhone ever. Apple offers Apple Card Monthly Installments at the rates shown, or 24-month lease-to-own at $57.99-$92.81/mo (terms apply).

Pre-orders for the iPhone Duo open 2-3 weeks before the spring 2027 ship date (most likely March or April 2027).

iPhone Fold vs Galaxy Z Fold 8

The Galaxy Z Fold 8 is the iPhone Duo's primary competitor. Samsung has been in the foldable category since 2019; the iPhone Duo is Apple's first-generation product. Head-to-head:

Spec	iPhone Duo (announced)	Galaxy Z Fold 8 (announced)
Cover display	5.4" 60Hz	6.5" 120Hz
Inner display	7.6" 60Hz	7.6" 120Hz
Chip	A20 Pro (2nm)	Snapdragon 8 Gen 5 (3nm)
RAM	12GB	12GB
Battery	4,883 mAh	4,400 mAh
Rear cameras	48+48+12MP	50+12+10MP
Inner camera	Under-display 4MP	Under-display 4MP
Hinge	New Structure (Taiwan)	Samsung proprietary
Crease	Virtually invisible	Slight visible crease
Weight	~280g	~253g
OS	iOS 27	Android 17 + One UI 8
Biometrics	Touch ID (power button)	Fingerprint (side) + face unlock
Stylus support	Apple Pencil Pro (cover display only)	S Pen (inner display only)
Price (256GB)	$1,999	$1,899
Ship date	Spring 2027	Available now

For full head-to-head, see our iPhone Duo vs Galaxy Z Fold 8 comparison.

The iPhone Duo's advantages:

• Crease-suppression is best-in-class (Apple's 18-month display engineering investment)
• Battery life — 4,883 mAh is larger than Z Fold 8's 4,400 mAh
• Chip — A20 Pro on TSMC N2 is likely faster than Snapdragon 8 Gen 5
• iOS ecosystem — Continuity, AirDrop, iMessage, FaceTime, Find My

The Galaxy Z Fold 8's advantages:

• Available now — iPhone Duo is 6+ months away
• $100 cheaper at the entry tier
• Lighter at 253g vs 280g
• Larger cover display (6.5" vs 5.4")
• S Pen support on the inner display

Why is Apple delaying the iPhone Duo to Spring 2027?

Three manufacturing constraints, per Bloomberg and supply-chain reporting:

1. Display yield. The 7.8-inch inner display uses ultra-thin glass (UTG) with a plastic top layer. The crease-suppression coating has a 60-65% manufacturing yield, meaning 35-40% of displays are scrapped. Apple wants to reach 80%+ yield before retail launch.
2. Hinge supply. Apple's custom hinge is supplied by a single manufacturer (New Structure, Taiwan), with current capacity of 5-7 million hinges per year. A second supplier (Amphenol) comes online in 2027, doubling capacity.
3. App readiness. Apple wants foldable-optimized app experiences at launch — including iPad-class apps on the inner display and Continuity features between iPhone and iPad. Spring 2027 gives developers ~6 months after the September announcement to ship foldable-optimized builds.

How many iPhone Duo units will Apple produce?

Apple is targeting 7-9 million iPhone Duo units for the Spring 2027 launch window. This is higher than the 4-6 million figure cited in earlier 2026 reports, reflecting both the extended ramp and the second hinge supplier.

For comparison, Samsung sold 8-10 million Galaxy Z Fold 8 units in 2025. Apple is targeting a similar volume in 2027.

Broad availability (no waitlist) is expected by Q3 2027 as production scales.

Who should buy the iPhone Duo?

The iPhone Fold is for a specific buyer profile:

1. You want the largest iPhone display ever. The 7.8-inch inner display is bigger than the iPad mini (7.6"). For media consumption, reading, and productivity on the go, the Fold is unmatched by any other iPhone.
2. You are deep in the Apple ecosystem. iPad apps on the inner display + Mac-side Continuity + AirDrop + iMessage + AppleCare+ coverage.
3. You have $2,000+ to spend. The iPhone Fold is a premium purchase. Buyers who want the best value should look at the iPhone 18 Pro Max ($1,299).
4. You are willing to wait. The Fold ships Spring 2027 — 6-8 months after the iPhone 18 Pro Max.
5. You accept first-generation quirks. Apple has never shipped a foldable before. Expect subtle issues (hinge feel, display longevity, app optimization gaps) that improve in iPhone Fold 2.

For most buyers, the iPhone 18 Pro Max is the better choice. The iPhone Fold is the right answer if you specifically need the foldable form factor and have the budget.

Where can I get the iPhone Fold?

The iPhone Fold will be sold through:

• Apple.com and the Apple Store app
• Apple Retail Stores (US, UK, Germany, France, Japan, China, South Korea, Australia, Canada — first wave)
• Carrier stores (AT&T, Verizon, T-Mobile in the US)
• Authorized resellers (Best Buy, Target)

Pre-orders will open 2-3 weeks before the Spring 2027 ship date. Apple is likely to use the same appointment-based pickup pattern as the original Apple Watch launch in 2015, given the constrained initial supply.

What colors will the iPhone Fold be available in?

The iPhone Fold has a separate color lineup from the iPhone 18 Pro models:

• Light Gold — new hero color for the Fold
• Silver
• Space Black
• Deep Blue

The Fold's color options are constrained by the different finish requirements of the foldable chassis (the inner surfaces need to be protected from scratches during folding).

What is the iPhone Fold 2 timing?

Apple is reportedly planning a second-generation iPhone Fold for Fall 2027 or Spring 2028, with:

• Lighter chassis (target ~240g)
• Improved crease-suppression (yield > 90%)
• Under-display Face ID (replacing Touch ID)
• A21 Pro chip on TSMC N2P
• 16GB RAM (up from 12GB)
• Lower starting price (target $1,799)

For most buyers, waiting for iPhone Fold 2 is the right call if you can. The first-generation product will have quirks that the second generation fixes.

Related on TechPulse

For more on the iPhone Fold, see:

• iPhone Fold release date FAQ — Spring 2027 timing detail
• iPhone Fold show-but-don't-ship strategy — Apple's launch strategy
• iPhone Fold vs Galaxy Z Fold 8 comparison — head-to-head spec comparison
• iPhone 18 Pro Max vs iPhone Fold buyer framework — premium iPhone decision

We will update this article after the September 9 keynote with Apple's confirmed iPhone Fold pricing, exact release timing, and any changes to the spec sheet.