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
Term36 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
Device plan £20.00/mo for 36 months, airtime £35.99/mo for 24 months
£55.99/mo
£30.00 upfront
£44.83/mo effective · £1,613.76 total
See deal at O2
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£41.00/mo
£95.00 upfront
£44.96/mo effective · £1,079 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£42.00/mo
£75.00 upfront
£45.13/mo effective · £1,083 total
See deal at Fonehouse
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Black, Titanium Silverblue
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£44.79/mo
£9.00 upfront
£45.17/mo effective · £1,083.96 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Black, Titanium Silverblue
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£41.04/mo
£99.00 upfront
£45.17/mo effective · £1,083.96 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Black, Titanium Silverblue
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£34.79/mo
£249.00 upfront
£45.17/mo effective · £1,083.96 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Black, Titanium Silverblue
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£43.96/mo
£29.00 upfront
£45.17/mo effective · £1,084.04 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Silverblue
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£38.96/mo
£149.00 upfront
£45.17/mo effective · £1,084.04 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Black, Titanium Silverblue
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£32.71/mo
£299.00 upfront
£45.17/mo effective · £1,084.04 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Silverblue
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£43.13/mo
£49.00 upfront
£45.17/mo effective · £1,084.12 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Black, Titanium Silverblue
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£36.88/mo
£199.00 upfront
£45.17/mo effective · £1,084.12 total
See deal at Mozillion
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£43.00/mo
£55.00 upfront
£45.29/mo effective · £1,087 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£44.00/mo
£35.00 upfront
£45.46/mo effective · £1,091 total
See deal at Fonehouse
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Silver, Grey
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term36 mths
Unlimited data 5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
Device plan £20.00/mo for 36 months, airtime £37.00/mo for 24 months
£57.00/mo
£30.00 upfront
£45.50/mo effective · £1,638 total
See deal at O2
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Black, Titanium Silverblue
Data100GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£44.79/mo
£29.00 upfront
£46.00/mo effective · £1,103.96 total
See deal at Mozillion

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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