O2 3 GB SIM deals

O2 3 GB SIM — 24 months

3 GB

5G data

24 months

on O2 SIM Only Classic Plan

£18.00 a month

Price rises by £2.50 every April

SIM Only Classic Plan 5G Unlimited Calls & Texts

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O2 3 GB SIM — 24 months

3 GB

5G data

24 months

on O2 SIM Only Plus Plan

£19.99 a month

Price rises by £2.50 every April

SIM Only Plus Plan 5G Unlimited Calls & Texts

Buy now

O2 3 GB SIM — 24 months

3 GB

5G data

24 months

on O2 SIM Only Ultimate Plan

£24.99 a month

Price rises by £2.50 every April

SIM Only Ultimate Plan 5G Unlimited Calls & Texts

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Why Choose O2?

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