Best purchase price O2
SIM-free / buy outright
Purchase price
£649.99
No monthly payments
Total cost£649.99
Buy now at O2
Samsung Galaxy S25 Ultra deals
Price history
Changes to the top deal (O2 Mobiles, Titanium Black 256GB)
| Date | Purchase price | Status |
|---|---|---|
| 15 Oct 2026 | £649.99 | In stock |
A row is added when this deal is first listed and whenever its price or stock changes.
Samsung Galaxy S25 Ultra at a glance
| Released | 2025 |
|---|---|
| Storage options | 256GB, 512GB |
| Screen | 6.8-inch Dynamic LTPO AMOLED 2X display |
| Processor | Qualcomm SM8750-AB Snapdragon 8 Elite (3 nm) |
| Selfie camera | 12 MP |
| Water resistance | IP68 dust and water resistant |
| Network | 5G ready |
| SIM | nano-SIM and e-SIM |
| Weight | 219g |
| Size | 162.8 x 77.6 x 8.2 mm |
Specifications from the retailer’s product data for the 256GB Titanium Black model.
Samsung Galaxy S25 Ultra: your questions answered
Does this include a SIM plan?
No. These are outright handset purchases with no airtime plan included. Check unlocking, delivery, warranty and returns with the retailer.
Can I get a refurbished Samsung Galaxy S25 Ultra?
Yes. As well as these, we list used Samsung Galaxy S25 Ultra deals, which usually cost less.
Does the Samsung Galaxy S25 Ultra support 5G?
Yes, the Samsung Galaxy S25 Ultra is 5G ready. You’ll need a tariff that includes 5G and 5G coverage where you are to use it.
When did the Samsung Galaxy S25 Ultra come out?
The Samsung Galaxy S25 Ultra was released in 2025.
About Samsung Galaxy S25 Ultra deals
We compare 8 in-stock Samsung Galaxy S25 Ultra deals, in 4 colours, with 256GB and 512GB storage. Prices come from retailer feeds and are updated every day. Always check the final price with the retailer before you buy.
Popular Samsung phones
Ordered by how many visitors clicked through to a retailer in the last 30 days.
Prices last checked 28 Oct 2026 at 05:01. Deals are ranked by purchase price, never by commission. We may earn a commission if you buy, at no extra cost to you. How we make money