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
512GB · Pre-owned, Grade A · Silver, Black, Grey, Blue
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term36 mths
Unlimited data 5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
Device plan £21.39/mo for 36 months, airtime £45.99/mo for 24 months
£67.38/mo
£30.00 upfront
£52.88/mo effective · £1,903.80 total
See deal at O2
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Black, Titanium Silverblue
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£51.79/mo
£29.00 upfront
£53.00/mo effective · £1,271.96 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Black, Titanium Silverblue
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£46.79/mo
£149.00 upfront
£53.00/mo effective · £1,271.96 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Black, Titanium Silverblue
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£40.54/mo
£299.00 upfront
£53.00/mo effective · £1,271.96 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Black, Titanium Silverblue
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£50.96/mo
£49.00 upfront
£53.00/mo effective · £1,272.04 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Grey, Titanium Black, Titanium Silverblue
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£44.71/mo
£199.00 upfront
£53.00/mo effective · £1,272.04 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Silverblue
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£52.63/mo
£9.00 upfront
£53.01/mo effective · £1,272.12 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Silverblue
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£48.88/mo
£99.00 upfront
£53.01/mo effective · £1,272.12 total
See deal at Mozillion
Mozillion (EE network)
Samsung Galaxy S25 Ultra
512GB · Titanium Whitesilver, Titanium Grey, Titanium Black, Titanium Silverblue
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£42.63/mo
£249.00 upfront
£53.01/mo effective · £1,272.12 total
See deal at Mozillion
O2
Samsung Galaxy S25 Ultra
256GB · Pre-owned, Grade A · Silver, Black, Grey, Blue
Data30GB
MinutesUnlimited
TextsUnlimited
Term24 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£51.82/mo
£30.00 upfront
£53.07/mo effective · £1,273.68 total
See deal at O2
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£45.00/mo
£209.00 upfront
£53.71/mo effective · £1,289 total
See deal at Fonehouse
O2
Samsung Galaxy S25 Ultra
256GB · Pre-owned, Grade A · Blue, Black, Grey, Silver
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data 5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£52.83/mo
£30.00 upfront
£54.08/mo effective · £1,297.92 total
See deal at O2
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£46.00/mo
£195.00 upfront
£54.13/mo effective · £1,299 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£47.00/mo
£175.00 upfront
£54.29/mo effective · £1,303 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£48.00/mo
£155.00 upfront
£54.46/mo effective · £1,307 total
See deal at Fonehouse

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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