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Apple iPhone Duo

Apple iPhone Duo

The Apple iPhone Duo is Apple's first foldable iPhone, pairing a 5.4-inch cover screen with a 7.6-inch inner display for buyers who want one device that works as both a phone and a compact tablet. Opened up, that inner panel is larger than the 6.9-inch… Read more >

Operating System iOS
Camera 48 Megapixels
Display Size 7.6 inches
Capacity 256GB, 512GB, 1TB, 2TB
View full spec >

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O2 Apple iPhone Duo Deals

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Apple iPhone Duo

Apple iPhone Duo, 256GB Star White

£202.28 per month
£30.00 upfront
£206.24 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,474.86 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £204.78 on 1st April 2027
Free EU Roaming Roam freely in the EU, up to 25GB. 3 Months Free Entertainment 3 months of Disney+ Standard, Amazon Prime or more.
5GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Night Sky

£202.28 per month
£30.00 upfront
£206.24 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,474.86 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £204.78 on 1st April 2027
Free EU Roaming Roam freely in the EU, up to 25GB. 3 Months Free Entertainment 3 months of Disney+ Standard, Amazon Prime or more.
5GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Star White

£205.28 per month
£30.00 upfront
£209.24 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,510.86 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £207.78 on 1st April 2027
Free EU Roaming Roam freely in the EU, up to 25GB. 3 Months Free Entertainment 3 months of Disney+ Standard, Amazon Prime or more.
30GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Night Sky

£205.28 per month
£30.00 upfront
£209.24 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,510.86 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £207.78 on 1st April 2027
Free EU Roaming Roam freely in the EU, up to 25GB. 3 Months Free Entertainment 3 months of Disney+ Standard, Amazon Prime or more.
30GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Star White

£210.28 per month
£30.00 upfront
£214.24 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,570.86 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £212.78 on 1st April 2027
Free EU Roaming Roam freely in the EU, up to 25GB. 3 Months Free Entertainment 3 months of Disney+ Standard, Amazon Prime or more.
125GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Night Sky

£210.28 per month
£30.00 upfront
£214.24 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,570.86 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £212.78 on 1st April 2027
Free EU Roaming Roam freely in the EU, up to 25GB. 3 Months Free Entertainment 3 months of Disney+ Standard, Amazon Prime or more.
125GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Star White

£211.27 per month
£30.00 upfront
£215.23 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,582.74 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £213.77 on 1st April 2027
Free Roaming in 123 Destinations Roam freely at no extra cost with O2 Travel Inclusive Zone Ultimate. 123 destinations worldwide. Free Entertainment for Life of Plan Free access to Disney+ Premium, Amazon Prime or more for the life of your Ultimate plan 3-Year Warranty Get peace of mind with 3-Year Warranty O2 Satellite O2 Satellite sits alongside their main network, providing coverage in areas
they previously didn’t reach. Stay connected when it matters most, WhatsApp, Messenger, maps, weather, location sharing and more.
5GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Night Sky

£211.27 per month
£30.00 upfront
£215.23 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,582.74 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £213.77 on 1st April 2027
Free Roaming in 123 Destinations Roam freely at no extra cost with O2 Travel Inclusive Zone Ultimate. 123 destinations worldwide. Free Entertainment for Life of Plan Free access to Disney+ Premium, Amazon Prime or more for the life of your Ultimate plan 3-Year Warranty Get peace of mind with 3-Year Warranty O2 Satellite O2 Satellite sits alongside their main network, providing coverage in areas
they previously didn’t reach. Stay connected when it matters most, WhatsApp, Messenger, maps, weather, location sharing and more.
5GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Star White

£214.27 per month
£30.00 upfront
£218.23 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,618.74 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £216.77 on 1st April 2027
Free Roaming in 123 Destinations Roam freely at no extra cost with O2 Travel Inclusive Zone Ultimate. 123 destinations worldwide. Free Entertainment for Life of Plan Free access to Disney+ Premium, Amazon Prime or more for the life of your Ultimate plan 3-Year Warranty Get peace of mind with 3-Year Warranty O2 Satellite O2 Satellite sits alongside their main network, providing coverage in areas
they previously didn’t reach. Stay connected when it matters most, WhatsApp, Messenger, maps, weather, location sharing and more.
30GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Night Sky

£214.27 per month
£30.00 upfront
£218.23 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,618.74 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £216.77 on 1st April 2027
Free Roaming in 123 Destinations Roam freely at no extra cost with O2 Travel Inclusive Zone Ultimate. 123 destinations worldwide. Free Entertainment for Life of Plan Free access to Disney+ Premium, Amazon Prime or more for the life of your Ultimate plan 3-Year Warranty Get peace of mind with 3-Year Warranty O2 Satellite O2 Satellite sits alongside their main network, providing coverage in areas
they previously didn’t reach. Stay connected when it matters most, WhatsApp, Messenger, maps, weather, location sharing and more.
30GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Star White

£215.28 per month
£30.00 upfront
£219.24 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,630.86 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £217.78 on 1st April 2027
Free EU Roaming Roam freely in the EU, up to 25GB. 3 Months Free Entertainment 3 months of Disney+ Standard, Amazon Prime or more.
Unlimited data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Night Sky

£215.28 per month
£30.00 upfront
£219.24 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,630.86 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £217.78 on 1st April 2027
Free EU Roaming Roam freely in the EU, up to 25GB. 3 Months Free Entertainment 3 months of Disney+ Standard, Amazon Prime or more.
Unlimited data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Star White

£219.27 per month
£30.00 upfront
£223.23 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,678.74 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £221.77 on 1st April 2027
Free Roaming in 123 Destinations Roam freely at no extra cost with O2 Travel Inclusive Zone Ultimate. 123 destinations worldwide. Free Entertainment for Life of Plan Free access to Disney+ Premium, Amazon Prime or more for the life of your Ultimate plan 3-Year Warranty Get peace of mind with 3-Year Warranty O2 Satellite O2 Satellite sits alongside their main network, providing coverage in areas
they previously didn’t reach. Stay connected when it matters most, WhatsApp, Messenger, maps, weather, location sharing and more.
125GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Night Sky

£219.27 per month
£30.00 upfront
£223.23 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,678.74 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £221.77 on 1st April 2027
Free Roaming in 123 Destinations Roam freely at no extra cost with O2 Travel Inclusive Zone Ultimate. 123 destinations worldwide. Free Entertainment for Life of Plan Free access to Disney+ Premium, Amazon Prime or more for the life of your Ultimate plan 3-Year Warranty Get peace of mind with 3-Year Warranty O2 Satellite O2 Satellite sits alongside their main network, providing coverage in areas
they previously didn’t reach. Stay connected when it matters most, WhatsApp, Messenger, maps, weather, location sharing and more.
125GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 512GB Star White

£220.34 per month
£30.00 upfront
£224.30 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,691.58 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £222.84 on 1st April 2027
Free EU Roaming Roam freely in the EU, up to 25GB. 3 Months Free Entertainment 3 months of Disney+ Standard, Amazon Prime or more.
5GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 512GB Night Sky

£220.34 per month
£30.00 upfront
£224.30 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,691.58 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £222.84 on 1st April 2027
Free EU Roaming Roam freely in the EU, up to 25GB. 3 Months Free Entertainment 3 months of Disney+ Standard, Amazon Prime or more.
5GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 512GB Star White

£223.34 per month
£30.00 upfront
£227.30 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,727.58 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £225.84 on 1st April 2027
Free EU Roaming Roam freely in the EU, up to 25GB. 3 Months Free Entertainment 3 months of Disney+ Standard, Amazon Prime or more.
30GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 512GB Night Sky

£223.34 per month
£30.00 upfront
£227.30 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,727.58 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £225.84 on 1st April 2027
Free EU Roaming Roam freely in the EU, up to 25GB. 3 Months Free Entertainment 3 months of Disney+ Standard, Amazon Prime or more.
30GB data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Star White

£224.27 per month
£30.00 upfront
£228.23 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,738.74 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £226.77 on 1st April 2027
Free Roaming in 123 Destinations Roam freely at no extra cost with O2 Travel Inclusive Zone Ultimate. 123 destinations worldwide. Free Entertainment for Life of Plan Free access to Disney+ Premium, Amazon Prime or more for the life of your Ultimate plan 3-Year Warranty Get peace of mind with 3-Year Warranty O2 Satellite O2 Satellite sits alongside their main network, providing coverage in areas
they previously didn’t reach. Stay connected when it matters most, WhatsApp, Messenger, maps, weather, location sharing and more.
Unlimited data
Unlimited minutes
Unlimited texts
12 months contract
Apple iPhone Duo

Apple iPhone Duo, 256GB Night Sky

£224.27 per month
£30.00 upfront
£228.23 equivalent monthly cost ? The total contract cost divided by the contract length, allowing deals with different upfront payments to be compared more fairly.
£2,738.74 total cost over 12 months

VIEW DEAL
via O2
Monthly price increases to £226.77 on 1st April 2027
Free Roaming in 123 Destinations Roam freely at no extra cost with O2 Travel Inclusive Zone Ultimate. 123 destinations worldwide. Free Entertainment for Life of Plan Free access to Disney+ Premium, Amazon Prime or more for the life of your Ultimate plan 3-Year Warranty Get peace of mind with 3-Year Warranty O2 Satellite O2 Satellite sits alongside their main network, providing coverage in areas
they previously didn’t reach. Stay connected when it matters most, WhatsApp, Messenger, maps, weather, location sharing and more.
Unlimited data
Unlimited minutes
Unlimited texts
12 months contract
VIEW MORE DEALS

We may earn a commission if you click through and purchase via our links. This does not affect how deals are ranked or selected.

Live deal insights

O2 contract deals — price snapshot

  • Average total cost: £3,865
  • Lowest total cost: £2,475
  • £0 upfront options: 0 deals
  • Typical contract length: 12 months
  • Average monthly (24-month): £150
  • Average data allowance: 52GB

Other networks for this model: Sky Mobile, Talkmobile, Tesco Mobile, Three, Vodafone.

Sky Mobile Talkmobile Tesco Mobile Three Vodafone

Last updated: 19 Oct 2026 from 256 live offers

The Apple iPhone Duo is Apple's first foldable iPhone, pairing a 5.4-inch cover screen with a 7.6-inch inner display for buyers who want one device that works as both a phone and a compact tablet. Opened up, that inner panel is larger than the 6.9-inch screen on the iPhone 18 Pro Max, yet folded it closes to a short, wide 117.8 x 84.1mm footprint.

iPhone Duo: Display

Both screens are 120Hz LTPO OLED panels rated for 1,000 nits typical and 1,600 nits in high brightness mode outdoors, with the 3,000-nit peak reserved for HDR. The inner panel adds a matte nano-texture finish, and stylus support makes it look well placed for note-taking and markup.

The trade-off is a small crease on the inner display, and the nano-texture finish does not extend to the cover screen.

iPhone Duo: Camera

The rear pairs a 48MP main camera with sensor-shift stabilisation and a 48MP ultrawide, with 4K video up to 120fps in Dolby Vision HDR and ProRes.

There is no telephoto lens. The iPhone 18 Pro Max adds a 48MP periscope with 4x optical zoom, so anyone who regularly shoots distant subjects gives that up here. The under-display camera on the inner screen is also limited to 1080p video.

iPhone Duo: Battery

Wired charging is rated to reach 50% in 20 minutes, while 25W MagSafe and Qi2 wireless charging reaches 50% in 30 minutes.

The Pro Max charges faster over a cable, reaching 50% in 15 minutes, and already has a GSMArena active use score of 19 hours 20 minutes. Buyers who rank endurance first may prefer to wait for independent battery testing of the Duo, which powers two displays from a much thinner body.

iPhone Duo: Size, Weight and Build

At 254g, the Duo is only 5g heavier than the Pro Max. It has a grade 5 titanium frame and hinge, Ceramic Shield 2 cover glass and IP68 water resistance, and measures 5.2mm thick when open.

Folded, it is 11.3mm thick against 8.8mm for the Pro Max, and colours are limited to Night Sky and Star White. It is also eSIM only, so buyers on a physical SIM will need their network to issue an eSIM.

iPhone Duo: Performance

The Duo uses the same A20 Pro chip and 7-core GPU as the Pro Max, with 12GB of RAM across every storage option from 256GB to 2TB, which should leave headroom for running two apps side by side. It launches on iOS 27, at the start of its software support window.

There is no Face ID. Unlocking uses a side-mounted fingerprint sensor instead, which owners used to Face ID will need to adjust to.

iPhone Duo: Who Should Buy

The iPhone Duo suits iPhone users who want a tablet-sized workspace for documents, split-screen apps and stylus notes, and who are happy to give up a telephoto lens and Face ID to get it. Anyone who wants the strongest camera and proven battery life in the current range should choose the iPhone 18 Pro Max instead. Buyers weighing upfront cost against contract length will find current network pricing in the table above.

Apple iPhone Duo Specification

  • Operating System: iOS
  • Camera: 48 Megapixels
  • Display Size: 7.6 inches
  • Display Type: LTPO Super Retina XDR OLED
  • Capacity: 256GB, 512GB, 1TB, 2TB
  • eSIM Compatible: Yes
  • Weight: 254 grams
  • Resolution: 1878 x 2670
  • Primary Camera: 48 Megapixels
  • Primary Camera Flash: Dual-LED dual-tone
  • Secondary Camera: 12 Megapixels
  • Dimensions: Unfolded: 117.8 x 164.6 x 5.2 mm (Folded: 117.8 x 84.1 x 11.3 mm)
  • Processor: Hexa-core
  • Chipset: Apple A20 Pro
  • SIM Type: eSIM
  • Bluetooth: 6.0
  • WiFi: 802.11 a/b/g/n/ac/6e/7
  • Battery: Li-Ion
  • IP Rating: IP68

Specifications are provided by the manufacturer and may vary by region.

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