Phones / Samsung / Galaxy S25 Ultra

Samsung Galaxy S25 Ultra
Cheapest right now: £34.22/mo on O2 from O2 with £30.00 upfront.

Buy outright from £593 (Mozillion)

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Samsung Galaxy S25 Ultra

3 retailers · 3 networks · 256GB / 512GB / 1TB

Key specs

Screen6.8"
DisplayDynamic LTPO AMOLED 2X
Resolution1440 x 3120
ChipsetQualcomm SM8750-AB Snapdragon 8 Elite (3 nm)
Front camera12 Megapixels
Water resistanceIP68 - Dust and water resistant over 1.5 meter and 30 minutes
Weight219g
Dimensions162.8 x 77.6 x 8.2 mm

Contract deals for the Galaxy S25 Ultra

Sort by Effective monthly Monthly price Upfront cost Total cost Most data

242 deals match.

O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Grey, Silver
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£65.99/mo
£30.00 upfront
£67.24/mo effective · £1,613.76 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Silver, Grey
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data 5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£67.00/mo
£30.00 upfront
£68.25/mo effective · £1,638 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Grey, Blue, Black, Silver
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£68.07/mo
£30.00 upfront
£69.32/mo effective · £1,663.68 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Silver, Grey, Blue, Black
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data 5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£69.08/mo
£30.00 upfront
£70.33/mo effective · £1,687.92 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
256GB · Pre-owned, Grade A · Grey, Blue, Silver, Black
Data30GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£68.67/mo
£30.00 upfront
£71.17/mo effective · £854.04 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Grey, Silver
Data125GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£70.99/mo
£30.00 upfront
£72.24/mo effective · £1,733.76 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Grey, Blue, Silver, Black
Data125GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£73.07/mo
£30.00 upfront
£74.32/mo effective · £1,783.68 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
256GB · Pre-owned, Grade A · Silver, Black, Grey, Blue
Data125GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£73.67/mo
£30.00 upfront
£76.17/mo effective · £914.04 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Silver, Grey
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data 5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£75.99/mo
£30.00 upfront
£77.24/mo effective · £1,853.76 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
256GB · Pre-owned, Grade A · Black, Grey, Silver, Blue
Data5GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£75.67/mo
£30.00 upfront
£78.17/mo effective · £938.04 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Silver, Black, Grey, Blue
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data 5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£78.07/mo
£30.00 upfront
£79.32/mo effective · £1,903.68 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
256GB · Pre-owned, Grade A · Grey, Blue, Silver, Black
Data30GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£77.66/mo
£30.00 upfront
£80.16/mo effective · £961.92 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
256GB · Pre-owned, Grade A · Blue, Black, Grey, Silver
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term12 mths
Unlimited data 5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£78.67/mo
£30.00 upfront
£81.17/mo effective · £974.04 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
256GB · Pre-owned, Grade A · Blue, Silver, Black, Grey
Data125GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£82.66/mo
£30.00 upfront
£85.16/mo effective · £1,021.92 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Silver, Grey
Data5GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£84.00/mo
£30.00 upfront
£86.50/mo effective · £1,038 total
See deal at O2

Buy the Galaxy S25 Ultra outright

Pair it with a SIM-only plan — usually the cheapest way to own a phone over two years.

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