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O2 SIM Deal
Uses O2's Network
40 GBof 5G data
£8.00 a monthuntil April 2026then price rises every April in contract by £2.50Price details
12 month contract
Includes roaming in 48 destinations
O2 SIM only deals
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List of SIM Only deals
O2 SIM Deal
Uses O2's Network
100 GBof 5G data
£10.00 a monthuntil April 2026then price rises every April in contract by £2.50Price details
12 month contract
Includes roaming in 48 destinations
O2 SIM Deal
Uses O2's Network
72 GBof 5G data
£9.00 a monthuntil April 2026then price rises every April in contract by £2.50Price details
12 month contract
Includes roaming in 48 destinations
O2 SIM Deal
Uses O2's Network
300 GBof 5G data
£16.00 a monthuntil April 2026then price rises every April in contract by £2.50Price details
12 month contract
Includes roaming in 48 destinations
O2 SIM Deal
Uses O2's Network
175 GBof 5G data
£14.00 a monthuntil April 2026then price rises every April in contract by £2.50Price details
12 month contract
Includes roaming in 48 destinations
O2 SIM Deal
Uses O2's Network
12 GBof 5G data
£6.99 a monthuntil April 2026then price rises every April in contract by £2.50Price details
12 month contract
Includes roaming in 48 destinations
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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