Samsung Galaxy S23 Ultra prices on UK networks' contracts

The retailers featured on this page may compensate us when our readers follow links to their websites and make a purchase. More
Compare prices for the Samsung Galaxy S23 Ultra on a pay monthly contract with each of the UK's mobile networks to find the best deal.
Choose colour, memory and plan
Samsung Galaxy S23 Ultra


Screen size
6.8‑inch (diagonal)

Weight
233g
(approx 8oz)

Cameras
200MP (main)
12MP (selfie)
Choose colour:
Choose minimum memory:
Allowances
Minutes: (Any)
Texts: (Any)
Data: (Any)
Data speed:
Contract
Length: (6 - 36 months only)
Budget
Upfront: (Any upfront cost)
Monthly: (Any monthly cost)

Any mins | Any texts | Any data
(252 possibilities) on any length contract.
Sort by lowest: Monthly cost | Upfront cost | Total contract cost

Increased to: £38.72 on April 1 2026
36-month contract
(opens in new tab)

Increased to: £42.19 on April 1 2026
36-month contract
(opens in new tab)

Increased to: £28.31 on April 1 2026
36-month contract
(opens in new tab)

Increased to: £31.78 on April 1 2026
36-month contract
(opens in new tab)

Increased to: £35.25 on April 1 2026
36-month contract
(opens in new tab)
Best overall deals
What are you looking for in your plan?
Choose what type of plan you want for your Samsung Galaxy S23 Ultra
Unlimited data


Unlimited data
£60.19
a month
Increased to: £63.19 on April 1 2026
✔ £130 up front, 36-month contractSee full deal
at Three.co.uk
(opens in new window)
We've analysed the unlimited data Galaxy S23 Ultra contracts available on each UK mobile network and picked out the most competitive deal on each provider. Here's the state of play for February:
Three are actually the only network currently offering unlimited data plans alongside the Samsung Galaxy S23 Ultra, so their deal below at £60.19 a month (£130 upfront) gets the best choice by default:

Unlimited minutes + Unlimited texts + Unlimited data (5G) = £60.19 a month, £130 up front (36‑month contract)
See full deal
Increased to: £63.19 on April 1 2026
And that's all the networks we found offering unlimited data with the Samsung Galaxy S23 Ultra. Use our comparison tool further up the page to see more combos of upfront cost, contract length and data speed.
Useful link: Compare all unlimited data deals above
How each network compares
Which networks sell the Samsung Galaxy S23 Ultra?
You can only get the Galaxy S23 Ultra on Three.
Click a provider logo to see their best deals this month:
Three's Galaxy S23 Ultra deals start at £25.31 a month


From
£25.31
a month
Increased to: £28.31 on April 1 2026
✔ £630 upfront, 36-month contractCompare Three deals
Our latest search of their deals finds that Three currently have the Samsung Galaxy S23 Ultra in Phantom Black, Cream, Green and Lavender. And there's a choice of two memory variants: 256GB and 512GB.
Three only offer the Galaxy S23 Ultra on 36‑month contracts and you can only get it from them directly, they don't offer contracts via Carphone Warehouse or similar re-sellers.
✔ Best overall deal
We think this is currently Three's most competitive plan for the Galaxy S23 Ultra:

Unlimited minutes + Unlimited texts + 150GB data (5G) = £39.19 a month, £130 up front (36‑month contract)
See full deal
Increased to: £42.19 on April 1 2026
✔ Unlimited data
Three sell the Samsung Galaxy S23 Ultra on an unlimited data plan too. This is their best current unlimited deal:

Unlimited minutes + Unlimited texts + Unlimited data (5G) = £60.19 a month, £130 up front (36‑month contract)
See full deal
Increased to: £63.19 on April 1 2026
Their contracts are priced between £25.31 - £75.92 a month, depending on amount of minutes, texts and data in the plan. And you'll pay from £65 - £700 up front too.
Useful link: Compare all Three's Galaxy S23 Ultra deals