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
Data5GB
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 £32.99/mo for 24 months
£52.99/mo
£30.00 upfront
£42.83/mo effective · £1,541.76 total
See deal at O2
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
Data300GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£38.00/mo
£119.00 upfront
£42.96/mo effective · £1,031 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£29.00/mo
£335.00 upfront
£42.96/mo effective · £1,031 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
Data300GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£39.00/mo
£99.00 upfront
£43.13/mo effective · £1,035 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£30.00/mo
£315.00 upfront
£43.13/mo effective · £1,035 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£32.00/mo
£269.00 upfront
£43.21/mo effective · £1,037 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
Data300GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£40.00/mo
£79.00 upfront
£43.29/mo effective · £1,039 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£31.00/mo
£295.00 upfront
£43.29/mo effective · £1,039 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£33.00/mo
£249.00 upfront
£43.38/mo effective · £1,041 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
Data300GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£41.00/mo
£59.00 upfront
£43.46/mo effective · £1,043 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£34.00/mo
£229.00 upfront
£43.54/mo effective · £1,045 total
See deal at Fonehouse
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Blue, Silver, Black, Grey
Data125GB
MinutesUnlimited
TextsUnlimited
Term36 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
Device plan £21.39/mo for 36 months, airtime £32.00/mo for 24 months
£53.39/mo
£30.00 upfront
£43.56/mo effective · £1,568.04 total
See deal at O2
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£35.00/mo
£209.00 upfront
£43.71/mo effective · £1,049 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
Data300GB
MinutesUnlimited
TextsUnlimited
Term24 mths
£42.00/mo
£45.00 upfront
£43.88/mo effective · £1,053 total
See deal at Fonehouse
Three
Samsung Galaxy S25 Ultra
256GB · Titanium Silver Blue
via Fonehouse
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term24 mths
Unlimited data
£36.00/mo
£189.00 upfront
£43.88/mo effective · £1,053 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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