Phones / Apple / iPhone 15

Apple iPhone 15
Cheapest right now: £23.99/mo on iD Mobile from iD Mobile with £29.00 upfront.

Buy outright from £469.99 (O2)

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Apple iPhone 15

4 retailers · 6 networks · 128GB / 256GB / 512GB

At a glance. The Apple iPhone 15 is currently sold on contract by Fonehouse, Mozillion, O2 and iD Mobile, with airtime from Mozillion, O2, Talkmobile, Three, Vodafone and iD Mobile. It is available in 3 storage sizes (128GB, 256GB, 512GB); larger sizes add to the price, so pick the smallest you can live with. The cheapest deal by effective monthly cost is £23.99 a month with £29.00 upfront over 24 months on iD Mobile, which works out at about £25.20 a month all in. If you would rather buy it outright, the lowest SIM-free price we track is £469.99 from O2 — worth comparing against the contracts above, paired with a SIM-only plan. 86 of the deals are for refurbished handsets, which are usually noticeably cheaper; use the condition filter to compare new and refurbished separately. Key specs: 6.1" super retina xdr oled, a Apple A16 Bionic (4 nm) chip, IP68 water resistance.

The headline trap

The lowest monthly price for this phone is £11.95 — but it comes with £355 to pay upfront.

Cheapest-lookingFonehouse
Advertised£11.95/mo
Upfront£355
Whole bill, 24m£641.80
£26.74/mo really
Still the cheapest overallFonehouse
Monthly£11.95/mo
Upfront£355
Whole bill, 24m£641.80
£26.74/mo really

In this case the low monthly price is still the cheapest deal overall — just make sure you can pay £355 today.

Contract or buy outright?

The cheapest new 128GB contract, against buying the same phone outright and adding the cheapest SIM plan with at least 15GB of data, over 24 months.

Cheaper
ContractFonehouse
Upfront£355
Monthly£11.95
24 months£641.80
See contract
Outright + SIMMozillion + iD Mobile
Phone, outright£680
SIM £6.00 × 24£144
24 months£824
See phone

The contract is £182.20 cheaper over 24 months.

Assumes the SIM plan price (iD Mobile sim only, 25GB, rolling monthly) stays the same for the whole period; contracts may also rise each year. Add price rises or cashback in the calculator.

Key specs

Screen6.1"
DisplaySuper Retina XDR OLED
Resolution1179 x 2556
ChipsetApple A16 Bionic (4 nm)
Front camera12 Megapixels
Water resistanceIP68 dust/water resistant (up to 6m for 30 mins)
Weight171g
Dimensions147.6 x 71.6 x 7.8 mm

Every contract for the iPhone 15, ranked by true cost

Sort by True monthly cost Monthly price Upfront cost Total cost Most data

428 deals match. Prices last checked 29 October 2026.

O2O2
Apple iPhone 15
128GB · Black, Blue
Data5GB
MinutesUnlimited
TextsUnlimited
Term36 mths
5G 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile

Device plan £20.53/mo for 36 months, airtime £24.00/mo for 24 months

The whole bill36 months
Upfront£20.00
Device £20.53×36£739.08
Airtime £24.00×24£576
True cost£1,335.08
£37.09/mo real
Headline is honest See deal at O2
iDiD Mobile
Runs on Three
Apple iPhone 15
128GB · Blue, Black
Data10GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Unlocked Phones Capped Contracts Data Rollover Free EU Roaming
The whole bill24 months
Upfront£99.00
£32.99 × 24£791.76
True cost£890.76
£37.12/mo real
Advertised as £32.99/mo See deal at iD Mobile
3Three
Apple iPhone 15
128GB · Blue, Black
Sold by Fonehouse
Data100GB
MinutesUnlimited
TextsUnlimited
Term24 mths
Claim 3 months free Apple Music and Arcade
The whole bill24 months
Upfront£75.00
£34.00 × 24£816
True cost£891
£37.13/mo real
Upfront adds £3.13/mo See deal at Fonehouse
3Three
Apple iPhone 15
128GB · Blue, Black
Sold by Fonehouse
Data100GB
MinutesUnlimited
TextsUnlimited
Term24 mths
Claim 3 months free Apple Music and Arcade
The whole bill24 months
Upfront£55.00
£35.00 × 24£840
True cost£895
£37.29/mo real
Upfront adds £2.29/mo See deal at Fonehouse
3Three
Apple iPhone 15
128GB · Blue, Black
Sold by Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data Claim 3 months free Apple Music and Arcade
The whole bill24 months
Upfront£369.00
£22.00 × 24£528
True cost£897
£37.38/mo real
Advertised as £22.00/mo See deal at Fonehouse
3Three
Apple iPhone 15
128GB · Blue, Black
Sold by Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data Claim 3 months free Apple Music and Arcade
The whole bill24 months
Upfront£349.00
£23.00 × 24£552
True cost£901
£37.54/mo real
Advertised as £23.00/mo See deal at Fonehouse
3Three
Apple iPhone 15
128GB · Blue, Black
Sold by Fonehouse
Data100GB
MinutesUnlimited
TextsUnlimited
Term24 mths
Claim 3 months free Apple Music and Arcade
The whole bill24 months
Upfront£39.00
£36.00 × 24£864
True cost£903
£37.63/mo real
Upfront adds £1.63/mo See deal at Fonehouse
O2O2
Apple iPhone 15
512GB · Pink, Blue, Black, Green
Data5GB
MinutesUnlimited
TextsUnlimited
Term36 mths
5G Pre-owned, Grade A 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile

Device plan £14.81/mo for 36 months, airtime £32.99/mo for 24 months

The whole bill36 months
Upfront£30.00
Device £14.81×36£533.16
Airtime £32.99×24£791.76
True cost£1,354.92
£37.64/mo real
Headline is honest See deal at O2
3Three
Apple iPhone 15
128GB · Blue, Black
Sold by Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data Claim 3 months free Apple Music and Arcade
The whole bill24 months
Upfront£305.00
£25.00 × 24£600
True cost£905
£37.71/mo real
Advertised as £25.00/mo See deal at Fonehouse
3Three
Apple iPhone 15
128GB · Blue, Black
Sold by Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data Claim 3 months free Apple Music and Arcade
The whole bill24 months
Upfront£329.00
£24.00 × 24£576
True cost£905
£37.71/mo real
Advertised as £24.00/mo See deal at Fonehouse
O2O2
Apple iPhone 15
128GB · Black, Pink, Blue, Green, Yellow
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term36 mths
Unlimited data 5G Pre-owned, Grade A 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile

Device plan £12.22/mo for 36 months, airtime £37.00/mo for 24 months

The whole bill36 months
Upfront£30.00
Device £12.22×36£439.92
Airtime £37.00×24£888
True cost£1,357.92
£37.72/mo real
Headline is honest See deal at O2
iDiD Mobile
Runs on Three
Apple iPhone 15
128GB · Blue, Black
Data25GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Unlocked Phones Capped Contracts Data Rollover Free EU Roaming
The whole bill24 months
Upfront£19.00
£36.99 × 24£887.76
True cost£906.76
£37.78/mo real
Upfront adds £0.79/mo See deal at iD Mobile
3Three
Apple iPhone 15
128GB · Blue, Black
Sold by Fonehouse
Data100GB
MinutesUnlimited
TextsUnlimited
Term24 mths
Claim 3 months free Apple Music and Arcade
The whole bill24 months
Upfront£19.00
£37.00 × 24£888
True cost£907
£37.79/mo real
Upfront adds £0.79/mo See deal at Fonehouse
3Three
Apple iPhone 15
128GB · Blue, Black
Sold by Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data Claim 3 months free Apple Music and Arcade
The whole bill24 months
Upfront£285.00
£26.00 × 24£624
True cost£909
£37.88/mo real
Advertised as £26.00/mo See deal at Fonehouse
3Three
Apple iPhone 15
128GB · Blue, Black
Sold by Fonehouse
Data100GB
MinutesUnlimited
TextsUnlimited
Term24 mths
Nothing upfront Claim 3 months free Apple Music and Arcade
The whole bill24 months
Upfront£0.00
£38.00 × 24£912
True cost£912
£38.00/mo real
Headline is honest See deal at Fonehouse

Buy the iPhone 15 outright

Pair it with a SIM-only plan. Whether that beats a contract depends on the phone — see the verdict above.

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