iPhone Duo: everything UK buyers need to know.
The iPhone Duo is Apple’s first foldable iPhone – a book-style design that opens from a 5.4-inch cover screen into a 7.6-inch folding inner display. It went on sale in the UK on Friday 23 October, and early supply is tight. Here is how UK buyers can be ready – and how a trade-in can take a serious chunk off the price.
iPhone Duo UK release timeline.
- Friday 16 October: pre-orders opened at 1pm UK.
- Friday 23 October: on sale, with the first deliveries landing.
- Now: on general sale – buy outright or compare network contract deals below.
iPhone Duo UK prices.
- 256GB: £1,999
- 512GB: £2,199
- 1TB: £2,599
- 2TB: £3,199
Two finishes: Star White and Night Sky. That starting price is roughly £700 above the iPhone 18 Pro Max – this is Apple’s most expensive iPhone ever, which makes the trade-in question below worth a minute of your time.
iPhone Duo key specifications.
- Displays: 5.4-inch outer Super Retina XDR + 7.6-inch folding inner Super Retina XDR
- Chip: Apple A20 Pro
- Camera: 48MP Fusion main with sensor-shift stabilisation (no dedicated telephoto)
- Unlocking: Touch ID in the side button – works open or closed
- SIM: eSIM only (dual eSIM)
- Durability: IP68 – up to 6 metres of water for 30 minutes
- Weight: 254g, running iOS 27 with full two-app multitasking
How to actually get hold of one.
Apple is reportedly managing supply constraints, so stock is tight and the popular colours and capacities go first. Check availability before you commit, and have a fallback in mind – a second-choice colour or capacity will often ship sooner. Orders placed now may slip into November, so it is worth seeing what each network can actually deliver.
The smart way to fund it: trade in your current phone.
A £1,999 phone sounds different when your current handset covers a third of it. We pay up to £700 for an iPhone 17 Pro Max, £520 for an iPhone 16 Pro Max and £420 for an iPhone 15 Pro Max – guaranteed prices, locked for 14 days, paid the same day your phone passes checks. That 14-day lock matters here: get your quote today, order your Duo on Friday, and send your old phone once the new one arrives. Not sure what yours is worth? See our full trade-in value guide.
iPhone Duo contract deals.
iPhone Duo deals are now live: compare every iPhone Duo pay monthly contract across the UK networks, updated daily – or see SIM free iPhone Duo prices. Pair either with a trade-in and the jump to Apple’s first foldable gets a lot smaller.
Spotlight: Sky Mobile’s 48-month Duo contract.
The standout launch offer so far is Sky Mobile’s 48-month contract, which spreads the Duo’s cost over four years instead of the usual two – cutting the upfront cost dramatically and bringing Apple’s £1,999 foldable down to a far more approachable monthly figure. If the Duo’s price was the thing holding you back, this is currently the lowest barrier to entry: see the live Sky pricing on our iPhone Duo deals comparison.
Worth weighing before you commit: four years is a long contract – compare the total cost over the term against buying the phone outright with a cheap SIM only plan, and remember the Duo’s seven years of iOS updates mean the phone will comfortably outlast the contract either way.
FAQs about the iPhone Duo.
- Can I buy the iPhone Duo in the UK now?
- Yes – it went on sale on Friday 23 October 2026, after pre-orders opened on 16 October.
- How much does the iPhone Duo cost in the UK?
- From £1,999 for 256GB, rising to £3,199 for 2TB.
- Does the iPhone Duo have a physical SIM slot?
- No – it is eSIM only, with dual eSIM support.
- Is the iPhone Duo waterproof?
- It carries an IP68 rating – resistant to submersion up to 6 metres for 30 minutes, the same as the iPhone 18 Pro.
- What are the iPhone Duo’s weak points?
- No dedicated telephoto camera, Apple Pencil support arrives after launch, and the price. If those give you pause, the iPhone 18 Pro Max delivers Apple’s best camera for around £700 less.
Want the foldable experience without the wait? Check our refurbished Samsung foldables – Z Fold and Z Flip models from well under half the Duo’s price, graded, tested and under 12-month warranty.