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O2 SIM Deal
Uses O2's Network
40 GBof 5G data
£8.00 a monthuntil April 2027then price rises every April in contract by £2.50Price details
12 month contract
Roam up to 25GB in 48 destinations
Compare 12-month SIM only deals
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Sorted by: Bestselling
List of SIM Only deals
iD Mobile SIM Deal
Uses Three Mobile's Network
100 GBof 5G data
£2.50 a monthfor 3 months, then £10.00Price details
12 month contract
Roam up to 30GB in 50 destinations
iD Mobile SIM Deal
Uses Three Mobile's Network
50 GBof 5G data
£2.00 a monthfor 3 months, then £8.00Price details
12 month contract
Roam up to 30GB in 50 destinations
O2 SIM Deal
Uses O2's Network
75 GBof 5G data
£10.00 a monthuntil April 2027then price rises every April in contract by £2.50Price details
12 month contract
Roam up to 25GB in 48 destinations
Vodafone SIM Deal
Uses Vodafone's Network
60 GBof data
£9.00 a monthuntil April 2027then price rises every April in contract by £1.50Price details
12 month contract
Roam up to 25GB in 4 destinations
Sky Mobile SIM Deal
Uses O2's Network
10 GBof 5G data
£6.00 a monthMonthly cost may rise in contract
12 month contract
Asda Mobile SIM Deal
Uses Vodafone's Network
10 GBof 5G data
£5.95 a month
12 month contract
Roam up to 5GB in 46 destinations
iD Mobile SIM Deal
Uses Three Mobile's Network
Unlimited5G data
£8.00 a monthfor 3 months, then £16.00Price details
12 month contract
Roam up to 30GB in 50 destinations
O2 SIM Deal
Uses O2's Network
10 GBof 5G data
£7.00 a monthuntil April 2027then price rises every April in contract by £2.50Price details
12 month contract
Roam up to 10GB in 48 destinations
Tesco Mobile SIM Deal
Uses O2's Network
6 GBof 5G data
£6.00 a monthuntil April 2027then price rises every April in contract by £0.36Price details
12 month contract
Roam up to 6GB in 45 destinations
Can't find what you're looking for?
Previously, most mobile networks raised contract prices in line with inflation. From January 2025, however, Ofcom will ban inflation-based price hikes on new contracts, requiring future increases to be fixed and clearly stated upfront.
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