Samsung Galaxy S25: monthly contracts across all networks

No upfront costs

We've done a big comparison of each network's contracts with no upfront costs for the Samsung Galaxy S25 this May and narrowed it down to a small range of different data plans. Here are the results:

We think this deal from Vodafone offers the best value for no upfront cost with a small amount of data:

Unlimited minutes + Unlimited texts +  100GB data (5G) =  £29 a month, £0 up front (24‑month contract)
See full deal

🛈 Increased to: £31.50 on April 1 2027.
Increased to: £34.00 on April 1 2028

Our best pick of the largest data plans available with no upfront fees for the Galaxy S25 is this from Vodafone:

Unlimited minutes + Unlimited texts +  400GB data (5G) =  £30 a month, £0 up front (24‑month contract)
See full deal

🛈 Increased to: £32.50 on April 1 2027.
Increased to: £35.00 on April 1 2028

And finally, if you just want totally unlimited data with your Samsung Galaxy S25 without having anything to pay upfront, have a look at this deal from Three:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £31 a month, £0 up front (24‑month contract)
See full deal

🛈 Increased to: £32.50 on April 1 2028.
Increased to: £34.00 on April 1 2029

Useful link: Compare all no upfront cost deals above

Unlimited data

We've analysed the unlimited data Galaxy S25 contracts available on each UK mobile network and picked out the most competitive deal on each provider. Here's the state of play for May:

Our first pick would be this £22 a month deal from Three with £185 to pay up front:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £22 a month, £185 up front (24‑month contract)
See full deal

🛈 Increased to: £23.50 on April 1 2028.
Increased to: £25.00 on April 1 2029

Or in second place, iD Mobile's £33.99 a month unlimited data plan here is a decent alternative:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £33.99 a month, £9 up front (24‑month contract)
See full deal

🛈 Increased to: £35.49 on April 1 2028.
Increased to: £36.99 on April 1 2029

After that, the next best is Vodafone's deal here:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £31 a month, £169 up front (24‑month contract)
See full deal

🛈 Increased to: £32.80 on April 1 2027.
Increased to: £34.60 on April 1 2028

giffgaff's plan here comes after that in our opinion:

Unlimited minutes + Unlimited texts +  Always On data (5G) =  £46.50 a month, £25 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

And bringing up the rear with this £57.25 a month unlimited data contract is O2:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £57.25 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%

None of the other networks offer the Samsung Galaxy S25 with unlimited data. But there may be more combos of upfront cost, contract length and speed if you give our comparison tool further up the page a go.

Useful link: Compare all unlimited data deals above

giffgaff's Galaxy S25 contracts currently start at £26.64 a month

Looking at their latest deals in May, if you want the Samsung Galaxy S25 from giffgaff, they've currently got it in Mint, Silver Shadow and Navy. And they've only got it in the 256GB memory version.

giffgaff sell the Samsung Galaxy S25 on two contract lengths: 36 or 24 months 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 Samsung Galaxy S25 deals

✔ Best overall deal

The deal below is giffgaff's current most competitive plan for the Galaxy S25:

Unlimited minutes + Unlimited texts +  Always On data (5G) =  £56.21 a month, £50 up front (24‑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

For unlimited data with your Samsung Galaxy S25, giffgaff's best deal is the same as the one we've chosen as their best overall offer above.

The monthly costs on giffgaff range between £26.64 - £67.25 according to the amount of minutes, texts and data you want. You're looking at paying £25 - £200 upfront too.

Useful link: Compare all giffgaff's Galaxy S25 deals

iD Mobile have 180 deals for the Galaxy S25

Our latest search of their deals finds that iD Mobile currently have the Samsung Galaxy S25 in Silver Shadow, Navy, Icy Blue and Blueblack. And there's a choice of three memory variants: 128GB, 256GB and 512GB.

There's only one choice of contract length for the Galaxy S25 on iD Mobile: 24 months 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 Samsung Galaxy S25 deals

✔ Best overall deal

This is iD Mobile's current most-competitive plan for the Galaxy S25, from our most recent comparison:

Unlimited minutes + Unlimited texts +  500GB data (5G) =  £32.99 a month, £9 up front (24‑month contract)
See full deal

🛈 Increased to: £34.49 on April 1 2028.
Increased to: £35.99 on April 1 2029

✔ Unlimited data

You can get the Samsung Galaxy S25 with unlimited data on iD Mobile. Here's their current best deal for that:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £33.99 a month, £9 up front (24‑month contract)
See full deal

🛈 Increased to: £35.49 on April 1 2028.
Increased to: £36.99 on April 1 2029

Price-wise, iD Mobile have contracts priced ranging between £24.99 - £39.99 a month (with £9 - £209 upfront), depending on the minutes, texts and data you want.

Useful link: Compare all iD Mobile's Galaxy S25 deals

O2's Galaxy S25 deals start from £44.25 a month

Looking at O2's current pay monthly contracts for May, they have the Samsung Galaxy S25 in Mint, Silver Shadow and Navy. And they only stock the 256GB version of it.

You've got three contract length choices of 36, 24 or 12 months for the Galaxy S25 on O2 but they don't sell contracts for it via any re-sellers like Carphone Warehouse, you can only join directly.

O2's best Samsung Galaxy S25 deals

✔ Best overall deal

We think this is currently O2's most competitive plan for the Galaxy S25:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £67.38 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

O2's best unlimited data plan for the Samsung Galaxy S25 is the same as our overall favourite deal above.

Their contracts are priced between £44.25 - £106.74 a month, depending on amount of minutes, texts and data in the plan. And you'll pay £30 up front too.

Useful link: Compare all O2's Galaxy S25 deals

Talkmobile offer 232x Galaxy S25 deals starting from £11.95

From our most recent check, the Samsung Galaxy S25 is currently available in Mint, Silver Shadow, Icy Blue and Navy on Talkmobile. They only have it in one choice of memory: 128GB.

Talkmobile only offer the Galaxy S25 on 24‑month contracts and it's only possible to get via the re-sellers Fonehouse and Metrofone. Talkmobile don't have it in their own range of phones.

Talkmobile's best Samsung Galaxy S25 deals

✔ Best overall deal

Here's the Talkmobile Galaxy S25 deal that stacks up best against other providers:

Unlimited minutes + Unlimited texts +  100GB data (4G) =  £21.95 a month, £115 up front (24‑month contract)
See full deal

🛈 No price rises in 2025

✖ Unlimited data

If you want unlimited data with your Samsung Galaxy S25, Talkmobile aren't currently an option, as they don't offer any plans with it.

On a pay monthly deal, you're looking at prices between £11.95 - £31.95 per month on Talkmobile, depending on the minutes, texts and data you want. And that's with £9 - £315 upfront costs.

Useful link: Compare all Talkmobile's Galaxy S25 deals

Three's Galaxy S25 deals start at £7 a month

On Three, our latest search of all their deals found that the Samsung Galaxy S25 is available in Mint, Silver Shadow, Icy Blue and Navy at the moment. Memory-wise, they've got the 128GB, 256GB and 512GB versions.

The Galaxy S25 comes on two lengths of contract with Three (24 or 36 months) and you can get it on their network by joining direct or via the Fonehouse and Metrofone re-sellers.

Three's best Samsung Galaxy S25 deals

✔ Best overall deal

This is the most competitive Three plan for the Galaxy S25, compared against other networks:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) =  £24 a month, £139 up front (24‑month contract)
See full deal

🛈 Increased to: £25.50 on April 1 2028.
Increased to: £27.00 on April 1 2029

✔ Unlimited data

The best Samsung Galaxy S25 plan with unlimited data from Three is the same as the one we've chosen as their best overall deal above.

Depending on the amount of minutes, texts and data you want in your deal, monthly costs on Three range between £7 - £70 (with £0 - £540 upfront costs).

Useful link: Compare all Three's Galaxy S25 deals

Vodafone: get the Galaxy S25 from £13 a month

Looking at their latest deals in May, if you want the Samsung Galaxy S25 from Vodafone, they've currently got it in Mint, Silver Shadow, Icy Blue, Navy and Blueblack. And they've got it in the 128GB, 256GB and 512GB memory versions.

Vodafone sell the Samsung Galaxy S25 on two contract lengths: 24 or 36 months and you have a choice of getting it on a contract directly from them or via the re-sellers Fonehouse, Metrofone, Carphone Warehouse and Mobiles.co.uk.

Vodafone's best Samsung Galaxy S25 deals

✔ Best overall deal

Here's the Vodafone deal we think is the best value at the moment for the Galaxy S25:

Unlimited minutes + Unlimited texts +  200GB data (5G) =  £25 a month, £69 up front (24‑month contract)
See full deal

🛈 Increased to: £27.50 on April 1 2027.
Increased to: £30.00 on April 1 2028

✔ Unlimited data

For unlimited data with your Samsung Galaxy S25 plan on Vodafone, this is the deal we think is the best value this May:

Unlimited minutes + Unlimited texts +  Unlimited data (4G) =  £26 a month, £79 up front (24‑month contract)
See full deal

🛈 Increased to: £28.50 on April 1 2027.
Increased to: £31.00 on April 1 2028

The monthly costs on Vodafone range between £13 - £80.25 according to the amount of minutes, texts and data you want. You're looking at paying £0 - £339 upfront too.

Useful link: Compare all Vodafone's Galaxy S25 deals

VOXI's Galaxy S25 contracts currently start at £37.59 a month

Our latest search of their deals finds that VOXI currently have the Samsung Galaxy S25 in Navy only. And there's only a choice of one memory variant: 256GB.

There's only one choice of contract length for the Galaxy S25 on VOXI: 36 months and you can only get it from them directly, they don't offer contracts via Carphone Warehouse or similar re-sellers.

VOXI's best Samsung Galaxy S25 deals

✔ Best overall deal

The deal below is VOXI's current most competitive plan for the Galaxy S25:

Unlimited minutes + Unlimited texts +  60GB data (5G) =  £37.59 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 Samsung Galaxy S25 with unlimited data on VOXI.

Price-wise, VOXI have contracts priced ranging between £37.59 a month (with nothing to pay upfront), depending on the minutes, texts and data you want.

Useful link: Compare all VOXI's Galaxy S25 deals