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
256GB · Pre-owned, Grade A · Black, Blue, Silver, Grey
Data5GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£84.66/mo
£30.00 upfront
£87.16/mo effective · £1,045.92 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Grey, Silver
Data30GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£87.00/mo
£30.00 upfront
£89.50/mo effective · £1,074 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
256GB · Pre-owned, Grade A · Grey, Black, Silver, Blue
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term12 mths
Unlimited data 5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£87.66/mo
£30.00 upfront
£90.16/mo effective · £1,081.92 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Grey, Silver, Black, Blue
Data5GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£88.17/mo
£30.00 upfront
£90.67/mo effective · £1,088.04 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Blue, Black, Grey, Silver
Data30GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£91.17/mo
£30.00 upfront
£93.67/mo effective · £1,124.04 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Grey, Silver
Data125GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£92.00/mo
£30.00 upfront
£94.50/mo effective · £1,134 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Silver, Grey
Data5GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£92.99/mo
£30.00 upfront
£95.49/mo effective · £1,145.88 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Grey, Silver
Data30GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£95.99/mo
£30.00 upfront
£98.49/mo effective · £1,181.88 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Black, Blue, Silver, Grey
Data125GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£96.17/mo
£30.00 upfront
£98.67/mo effective · £1,184.04 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Silver, Grey
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term12 mths
Unlimited data 5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£97.00/mo
£30.00 upfront
£99.50/mo effective · £1,194 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Black, Silver, Grey, Blue
Data5GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£97.16/mo
£30.00 upfront
£99.66/mo effective · £1,195.92 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Blue, Black, Grey, Silver
Data30GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£100.16/mo
£30.00 upfront
£102.66/mo effective · £1,231.92 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
1024GB · Pre-owned, Grade A · Grey, Silver
Data125GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£100.99/mo
£30.00 upfront
£103.49/mo effective · £1,241.88 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Silver, Grey, Blue, Black
DataUnlimited
MinutesUnlimited
TextsUnlimited
Term12 mths
Unlimited data 5G Refurbished 3 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£101.17/mo
£30.00 upfront
£103.67/mo effective · £1,244.04 total
See deal at O2
O2
Samsung Galaxy S25 Ultra
512GB · Pre-owned, Grade A · Grey, Blue, Silver, Black
Data125GB
MinutesUnlimited
TextsUnlimited
Term12 mths
5G Refurbished 6 months Free Disney+ O2 Priority Unlocked Phones Charge to mobile
£105.16/mo
£30.00 upfront
£107.66/mo effective · £1,291.92 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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