Apple iPhone 15 on a contract: compare all networks at once

Unlimited data

We've taken all the iPhone 15 contracts being offered with unlimited data this May by each network and sifted through to find the best value per provider. Here's what we found:

Our first pick would be this £26.99 a month deal from iD Mobile with £49 to pay up front:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £26.99 a month, £49 up front (24‑month contract)
See full deal

🛈 Increased to: £28.49 on April 1 2028.
Increased to: £29.99 on April 1 2029

Or Vodafone have got a good £25 a month alternative for unlimited data here in second place:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £25 a month, £169 up front (24‑month contract)
See full deal

🛈 Increased to: £26.80 on April 1 2027.
Increased to: £28.60 on April 1 2028

Next is this from giffgaff:

Unlimited minutes + Unlimited texts +  Always On data (5G) =  £41.92 a month, £20 up front (36‑month contract)
See full deal

🛈 giffgaff reserve the right to increase the cost of this phone's airtime plan annually with one month's notice

Three's unlimited data iPhone 15 plan is next:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £44.94 a month, £130 up front (36‑month contract)
See full deal

🛈 Increased to: £46.44 on April 1 2028.
Increased to: £47.94 on April 1 2029

And in last place is O2 with their contract below that'll cost you £54.22 a month for unlimited data:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £54.22 a month, £30 up front (36‑month contract)
See full deal

🛈 Monthly airtime plan price will increase each April by the Retail Price Index rate of inflation published in February + 3.9%

And that's it. No other network offers unlimited data with the Apple iPhone 15. If nothing's tickled your fancy here, use our comparison tool to check other combos of upfront cost, data speed and contract length.

Useful link: Compare all unlimited data deals above

giffgaff offer 144x iPhone 15 deals starting from £21.92

Looking at their latest deals in May, if you want the Apple iPhone 15 from giffgaff, they've currently got it in Black and Blue. And they've only got it in the 128GB memory version.

You've got two contract length choices of 36 or 24 months for the iPhone 15 on giffgaff but you can't get it on a contract with them via re-sellers like Carphone Warehouse, you have to join directly.

giffgaff's best Apple iPhone 15 deals

✔ Best overall deal

This is giffgaff's current most-competitive plan for the iPhone 15, from our most recent comparison:

Unlimited minutes + Unlimited texts +  75GB data (5G) =  £26.92 a month, £20 up front (36‑month contract)
See full deal

🛈 giffgaff reserve the right to increase the cost of this phone's airtime plan annually with one month's notice

✔ Unlimited data

You can get the Apple iPhone 15 with unlimited data on giffgaff. Here's their current best deal for that:

Unlimited minutes + Unlimited texts +  Always On data (5G) =  £41.92 a month, £20 up front (36‑month contract)
See full deal

🛈 giffgaff reserve the right to increase the cost of this phone's airtime plan annually with one month's notice

Their contracts are priced between £21.92 - £60.38 a month, depending on amount of minutes, texts and data in the plan. And you'll pay from £20 - £200 up front too.

Useful link: Compare all giffgaff's iPhone 15 deals

iD Mobile's iPhone 15 deals start at £24.99 a month

Our latest search of their deals finds that iD Mobile currently have the Apple iPhone 15 in Black, Blue, Pink and Yellow. And there's a choice of three memory variants: 128GB, 256GB and 512GB.

iD Mobile only offer the iPhone 15 on 24‑month contracts but you can choose between joining them directly for your deal or via the re-sellers Mobiles.co.uk and Carphone Warehouse.

iD Mobile's best Apple iPhone 15 deals

✔ Best overall deal

We think this is currently iD Mobile's most competitive plan for the iPhone 15:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £26.99 a month, £49 up front (24‑month contract)
See full deal

🛈 Increased to: £28.49 on April 1 2028.
Increased to: £29.99 on April 1 2029

✔ Unlimited data

iD Mobile's best unlimited data plan for the Apple iPhone 15 is the same as our overall favourite deal above.

On a pay monthly deal, you're looking at prices between £24.99 - £44.99 per month on iD Mobile, depending on the minutes, texts and data you want. And that's with £9 - £359 upfront costs.

Useful link: Compare all iD Mobile's iPhone 15 deals

O2: get the iPhone 15 from £41.22 a month

Looking at O2's current pay monthly contracts for May, they have the Apple iPhone 15 in Black and Blue. And they only stock the 128GB version of it.

The iPhone 15 comes on three lengths of contract with O2 (36, 24 or 12 months) but they don't sell contracts for it via any re-sellers like Carphone Warehouse, you can only join directly.

O2's best Apple iPhone 15 deals

✔ Best overall deal

Here's the O2 iPhone 15 deal that stacks up best against other providers:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £62.83 a month, £30 up front (24‑month contract)
See full deal

🛈 Monthly airtime plan price will increase each April by the Retail Price Index rate of inflation published in February + 3.9%

✔ Unlimited data

If you want unlimited data with your Apple iPhone 15, our top-pick on O2 is the same as our overall best deal above.

Depending on the amount of minutes, texts and data you want in your deal, monthly costs on O2 range between £41.22 - £97.66 (with £30 upfront costs).

Useful link: Compare all O2's iPhone 15 deals

Three's iPhone 15 contracts currently start at £20.67 a month

From our most recent check, the Apple iPhone 15 is currently available in Black, Blue, Green, Yellow and Pink on Three. They only have it in one choice of memory: 128GB.

Three sell the Apple iPhone 15 on one contract length: 36 months and it's only possible to get it directly with them - none of the re-sellers like Carphone Warehouse offer Three deals for it.

Three's best Apple iPhone 15 deals

✔ Best overall deal

This is the most competitive Three plan for the iPhone 15, compared against other networks:

Unlimited minutes + Unlimited texts +  150GB data (5G) =  £25.94 a month, £130 up front (36‑month contract)
See full deal

🛈 Increased to: £27.44 on April 1 2028.
Increased to: £28.94 on April 1 2029

✔ Unlimited data

It's possible to get the Apple iPhone 15 on an unlimited data plan from Three. We think this is the best option currently available:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £44.94 a month, £130 up front (36‑month contract)
See full deal

🛈 Increased to: £46.44 on April 1 2028.
Increased to: £47.94 on April 1 2029

The monthly costs on Three range between £20.67 - £59.47 according to the amount of minutes, texts and data you want. You're looking at paying £65 - £370 upfront too.

Useful link: Compare all Three's iPhone 15 deals

Vodafone have 380 deals for the iPhone 15

On Vodafone, our latest search of all their deals found that the Apple iPhone 15 is available in Black, Blue, Pink and Yellow at the moment. Memory-wise, they've got the 128GB, 256GB and 512GB versions.

There's two choices of contract length for the iPhone 15 on Vodafone: 24 or 36 months and you can get it on their network by joining direct or via the Carphone Warehouse and Mobiles.co.uk re-sellers.

Vodafone's best Apple iPhone 15 deals

✔ Best overall deal

Here's the Vodafone deal we think is the best value at the moment for the iPhone 15:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £30 a month, £79 up front (24‑month contract)
See full deal

🛈 Increased to: £31.80 on April 1 2027.
Increased to: £33.60 on April 1 2028

✔ Unlimited data

For unlimited data with your Apple iPhone 15, Vodafone's best deal is the same as the one we've chosen as their best overall offer above.

Price-wise, Vodafone have contracts priced ranging between £14 - £73.50 a month (with £5 - £440 upfront), depending on the minutes, texts and data you want.

Useful link: Compare all Vodafone's iPhone 15 deals

VOXI's iPhone 15 deals start from £28 a month

Looking at their latest deals in May, if you want the Apple iPhone 15 from VOXI, they've currently got it in Black only. And they've only got it in the 128GB memory version.

You've only got one contract length choice of 36 months for the iPhone 15 on VOXI and you can't get it on a contract with them via re-sellers like Carphone Warehouse, you have to join directly.

VOXI's best Apple iPhone 15 deals

✔ Best overall deal

The deal below is VOXI's current most competitive plan for the iPhone 15:

Unlimited minutes + Unlimited texts +  60GB data (5G) =  £28 a month, £0 up front (36‑month contract)
See full deal

🛈 VOXI reserve the right to increase the cost of this airtime plan annually with one month's notice

✖ Unlimited data

You can't currently get the Apple iPhone 15 with unlimited data on VOXI.

Their contracts are priced £28 a month, depending on amount of minutes, texts and data in the plan. But there's no upfront costs on any of their plans.

Useful link: Compare all VOXI's iPhone 15 deals