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iPhone Duo Buyer's Cheat Sheet by

A one-page reference for anyone deciding on Apple's foldable iPhone Duo: published specs, launch prices by storage in Hong Kong, mainland China, the US and the UK, key dates, US repair estimates and AppleCare+ costs, plus what is still unconfirmed.

Core Specs

Displays
7.6" inner · 5.4" outer
Refresh rate
Adaptive, up to 120Hz on both displays
Chip
A20 Pro · 6-core CPU · 7-core GPU
Storage
256GB / 512GB / 1TB / 2TB
Rear cameras
48MP Main + 48MP Ultra Wide (2x is an optica­l-q­uality crop of the Main camera, not a third lens)
Front cameras
12MP on the outer screen · under-­display FaceTime camera on the inner screen
Unlock
Touch ID in the side button (no Face ID listed)
SIM
eSIM only, no physical SIM tray
Colours
Star White · Night Sky
Water / dust
IP68, up to 6m for 30 min (lab rating)

Body, Battery & Charging

Weight
254g
Closed (H × W × D)
117.8 × 84.1 × 11.3mm
Open (H × W × D)
117.8 × 164.6 × 5.2mm
Rated battery
4,883 mAh (EU product sheet, model A3720)
Video playback
Up to 31h on inner · 44h on outer (Apple test rating)
Wired charging
50% in about 20 min, needs a 60W+ adapter (sold separa­tely)
Wireless
MagSafe / Qi2 up to 25W
EU declared values
Battery user-r­epl­ace­able: no · 1,000+ cycles · repair­ability class C (2.65/5) · OS updates 5+ years

Launch Price by Storage

256GB
HK$17,499 · RMB 15,999 · US$1,999 · £1,999
512GB
HK$19,299 · RMB 17,999 · US$2,199 · £2,199
1TB
HK$22,799 · RMB 21,499 · US$2,599 · £2,599
2TB
HK$27,999 · RMB 26,499 · US$3,199 · £3,199
Note
Local store prices before trade-in. Different curren­cies: convert with a dated rate before comparing

What Each Storage Step Costs

256GB → 512GB
+HK$1,800 · +RMB 2,000 · +200
512GB → 1TB
+HK$3,500 · +RMB 3,500 · +400
1TB → 2TB
+HK$5,200 · +RMB 5,000 · +600
Rule of thumb
Write down what would fill the extra space before paying for the next tier
 

Key Dates

Announced
September 9, 2026
Get Ready opened
October 12, 2026 (store setup, not an early sale)
Preorders
October 16, 2026 · 5 a.m. PDT = 12:00 UTC = 1 p.m. London = 8 p.m. Hong Kong / Beijing
First-wave availa­bility
October 23, 2026 (70+ countries and regions incl. US, UK, China, India, Japan)
Second wave
October 30, 2026 (28 more markets)
US in-store pickup
Apple's site said check back from October 24

Ordering Reality Check

Launch­-window preorders sold out within minutes on October 16.
By about 5:30 a.m. PT that day, new US Apple Store orders for all 8 config­ura­tions showed January 25, 2027.
October 23 is the arrival date for openin­g-m­inute orders and the day stores start selling, not a promise for a new order.
Don't plan on a walk-in purchase on October 23; staff at some stores were reportedly told stock would likely be unavai­lable.
Hong Kong and mainland China stores limit each customer to 2 units and showed no dated ship estimate on October 17.
All delivery dates are snapshots. Check the seller's current estimate before paying.

US Repair Estimates Without AppleCare+

Inner display cover layer
$49
Back glass
$199
Battery
$229
Rear camera
$229
Outer display
$379
Outer display + back glass
$509
Inner display
$999
Other damage
$1,499
Note
Apple's US repair page is the source of truth; final fee follows inspection

US Fees With AppleCare+

Battery (below 80% capacity)
$0
Inner display cover layer
$19
Outer display damage
$29
Back glass damage
$29
Inner display damage
$99
Other accidental damage
$99
Theft or loss
$149
Plan price (Theft and Loss)
$19.99­/month · $199.9­9/year · $399 one-time
 

Quick Cost Math

Monthly plan for 12 months:   12 x $19.99 = $239.88
Yearly plan:                              $199.99
Two years on the yearly plan:  2 x $199.99 = $399.98
One-time price:                           $399.00

One inner-display repair
  without AppleCare+:  $999
  with AppleCare+:      $99   -> $900 difference

The cover layer that hides the crease can be
replaced by Apple or an authorized provider
($49 without / $19 with AppleCare+). It is not
a user-applied screen protector.

Check the one-time plan's coverage term on
Apple's US store before comparing it with the
yearly plan.

Hong Kong vs Mainland China

Mainland activation models listed by Apple: A3518, A3635, A3715, A3718, A3721. Confirm yours with the carrier.
Supporting mainland carriers: China Mobile, China Telecom, China Unicom; setup includes an in-store identity check.
Apple's mainland support guide says overse­as-­pur­chased models cannot install mainland carrier eSIM profiles.
Roaming with a Hong Kong number is not the same as activating a mainland number.
Returns differ: the mainland policy describes 14 calendar days for eligible returns; Hong Kong online orders have no ordinary change­-of­-mind returns.
HKD and RMB prices can't be subtra­cted: convert both with the same dated rate first.

Not Confirmed Yet

RAM
Not published by Apple
Hinge lifespan
No verified measur­ement
Apple Pencil
USB-C Pencil support "­later in 2026", either screen; Pencil Pro not establ­ished
Real battery life & heat
Needs indepe­ndent testing on retail units
App fit on inner screen
Depends on each app's SDK: iOS 27.1 SDK or later uses the full inner display
Figures on this sheet are compiled from Apple's own pages. For the full table with each source and update date, see this indepe­ndent iPhone Duo spec sheet.
                                   
 

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