Samsung Galaxy S25 Ultra deals
3 contracts for the Samsung Galaxy S25 Ultra in our comparison. The lowest over the whole contract is £60 a month and £59 upfront, £1,564 over 24 months. On O2.
- 1TB, 256GB, 512GB
- Released January 2025
Our pick
O2, Galaxy S25 Ultra 512GB Titanium BlackMoneyHQ may earn a commission if you take this deal. It never changes the price you pay or the order deals are shown in. How we make money
- Unlimited data
- 24 months
- £59 upfront
- £62.50 from Apr 2027, then £65 from Apr 2028
£60a month
£65.17 a month all in, £1,564 over the contract
Go to deal: O2, Galaxy S25 Ultra 512GB Titanium Black, £60 a month£59 upfront and £60 a month for 24 months with unlimited data on O2, rising to £62.50 from Apr 2027, then £65 from Apr 2028: £1,564 over the contract, £65.17 a month all in.
How we chose it
The lowest monthly cost over the whole contract, upfront and stated rises included, of every contract for this phone on our comparison. Read live from our comparison partner.
Sold by Mobile Phones Direct. MoneyHQ may earn a commission if you take it.
Deals come from our comparison partner and MoneyHQ may earn a commission if you take one.
Quick answer · figures checked 2 November 2026
- What is the lowest monthly price for the Samsung Galaxy S25 Ultra?
- On 2 November 2026 the lowest monthly price we saw was £60 a month with £59 upfront on O2 over 24 months.
- What does the Samsung Galaxy S25 Ultra cost over the whole contract?
- The lowest total we saw was £1,564 over 24 months: £60 a month plus £59 upfront on O2. 3 of the 3 contracts state a mid-contract rise.
What the Galaxy S25 Ultra really costs
Across 3 Galaxy S25 Ultra contracts, the lowest true monthly cost is £65.17 a month (£59 upfront, £60 a month, 24 months, O2).
Since last week
Up £2.38 a month since last week: in our nightly price record the lowest true cost a month was £65.17 on 1 November, against £62.79 on 25 October.
Price rises
3 of 3 contracts state a mid-contract rise. On the lowest of those, the rises add £65 over 24 months.
Against the Galaxy S26 Ultra
2,000 Galaxy S26 Ultra contracts on our panel, the lowest at £38.16 a month (£629 upfront, £11.95 a month, 24 months, TalkMobile). The Galaxy S25 Ultra works out £27.01 a month more. Galaxy S26 Ultra deals
Against the Galaxy S24 Ultra
4 Galaxy S24 Ultra contracts on our panel, the lowest at £37.08 a month (£129 upfront, £29 a month, 24 months, O2). The Galaxy S25 Ultra works out £28.09 a month more. Galaxy S24 Ultra deals
About the same to run
Phones whose lowest true cost a month is within 15% of the Galaxy S25 Ultra's, from our latest daily price record:
- Motorola Razr Fold: £63.57 a month, £1.60 less
- Google Pixel 9 Pro XL: £61 a month, £4.17 less
- Samsung Galaxy Z Fold6: £70.17 a month, £5 more
- Honor Magic V6: £59.40 a month, £5.77 less
Galaxy S25 Ultra contracts right now
3 contracts, £60 to £60 a month, upfront from £59, £1,564 or more over the term. Sold by Mobile Phones Direct. 3 state a mid-contract rise.
| Variant | Network | Data | A month | Upfront | Total | Rise | Go to deal |
|---|---|---|---|---|---|---|---|
| Galaxy S25 Ultra 512GB Titanium BlackMobile Phones Direct · 24 months | O2 | Unlimited data | £60 | £59 | £1,564 | £62.50 from Apr 2027, then £65 from Apr 2028 | Get deal: Galaxy S25 Ultra 512GB Titanium Black on O2, £60 a monthMoneyHQ may earn a commission if you take this deal. It never changes the price you pay or the order deals are shown in. How we make money |
Read from our comparison partner’s feed on 2 November 2026. Providers set the prices and can change them. Tables built automatically by rules MoneyHQ sets: ordered by what deals cost, never by commission. How we make money.
Galaxy S25 Ultra: questions people ask
Which networks sell the Samsung Galaxy S25 Ultra on contract?
In our comparison the Samsung Galaxy S25 Ultra is available on O2, sold by Mobile Phones Direct.
Which storage sizes does the Samsung Galaxy S25 Ultra come in?
The Samsung Galaxy S25 Ultra contracts we list cover 1TB, 256GB and 512GB, in Titanium Black, Titanium Silverblue, Titanium Grey, Titanium Whitesilver and Jet Black. Use the filters in the comparison to narrow to a size and colour.
Samsung Galaxy S25 Ultra or Samsung Galaxy S26 Ultra: which costs less on contract?
On 2 November 2026 the Samsung Galaxy S25 Ultra worked out at £65.17 a month and the Samsung Galaxy S26 Ultra at £38.16, counting the upfront payment and any stated mid-contract rises. The Samsung Galaxy S25 Ultra is £27.01 a month more, £648 more over 24 months. Lowest contracts: £59 upfront and £60 a month on O2 for the Samsung Galaxy S25 Ultra; £629 upfront and £11.95 a month on TalkMobile for the Samsung Galaxy S26 Ultra.
Samsung Galaxy S25 Ultra or Samsung Galaxy S24 Ultra: which costs less on contract?
On 2 November 2026 the Samsung Galaxy S25 Ultra worked out at £65.17 a month and the Samsung Galaxy S24 Ultra at £37.08, counting the upfront payment and any stated mid-contract rises. The Samsung Galaxy S25 Ultra is £28.09 a month more, £674 more over 24 months. Lowest contracts: £59 upfront and £60 a month on O2 for the Samsung Galaxy S25 Ultra; £129 upfront and £29 a month on O2 for the Samsung Galaxy S24 Ultra.