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.

Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£49.00/mo
£135.00 upfront
£54.63/mo effective · £1,311 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£50.00/mo
£119.00 upfront
£54.96/mo effective · £1,319 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£51.00/mo
£99.00 upfront
£55.13/mo effective · £1,323 total
See deal at Fonehouse
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Silver, Grey
Data5GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£54.00/mo
£30.00 upfront
£55.25/mo effective · £1,326 total
See deal at O2
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£52.00/mo
£79.00 upfront
£55.29/mo effective · £1,327 total
See deal at Fonehouse
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Grey, Silver, Black, Blue
Data5GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£56.08/mo
£30.00 upfront
£57.33/mo effective · £1,375.92 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
256GB · Pre-owned, Grade A · Blue, Black, Grey, Silver
Data125GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£56.82/mo
£30.00 upfront
£58.07/mo effective · £1,393.68 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Grey, Silver
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£57.00/mo
£30.00 upfront
£58.25/mo effective · £1,398 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
256GB · Pre-owned, Grade A · Black, Blue, Silver, Grey
Data5GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£58.82/mo
£30.00 upfront
£60.07/mo effective · £1,441.68 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Blue, Black, Grey, Silver
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£59.08/mo
£30.00 upfront
£60.33/mo effective · £1,447.92 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
256GB · Pre-owned, Grade A · Grey, Silver, Black, Blue
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data 5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£61.82/mo
£30.00 upfront
£63.07/mo effective · £1,513.68 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Grey, Silver
Data125GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£62.00/mo
£30.00 upfront
£63.25/mo effective · £1,518 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Silver, Grey
Data5GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£62.99/mo
£30.00 upfront
£64.24/mo effective · £1,541.76 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Blue, Silver, Black, Grey
Data125GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£64.08/mo
£30.00 upfront
£65.33/mo effective · £1,567.92 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Black, Silver, Grey, Blue
Data5GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£65.07/mo
£30.00 upfront
£66.32/mo effective · £1,591.68 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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