Shop pay monthly SIM deals at O2, and enjoy unlimited minutes & texts, speedy 5G, O2 Priority perks, O2 WiFi hotspots, and more.

Compare the best O2 SIM only deals which includes minutes, texts and mobile data for a monthly fee without a phone. O2 SIM only deals are normally cheaper than a traditional mobile phone …

Want a SIM only deal for your mobile phone? With great data deals, fantastic rewards and inclusive EU roaming, an O2 SIM could be the ideal choice for you.

Find and compare cheap O2 SIM only deals that offer a package of minutes, texts and mobile data for a monthly cost. Get the best deals with MoneySuperMarket.

Compare with Go.Compare to find O2's best sim only deals, which include offers with unlimited data. Get value and connectivity from a leading network.

Find the best O2 SIM Only Deals in December 2025, including 30-day, 5G and unlimited data plans

Compare SIM-only deals on O2, including cheap SIM deals and SIMs with high data, and find the plan for you.

See how we rate each of the choices on O2's SIM only, compared with other UK mobile networks' closest plans.

Jan 26, 2025 · In this article, we’ll look at O2’s latest SIM-only deals, and how you’re able to get them. We’ll also look at their other SIM-only plans (including Classic, Plus and Ultimate plans), …

Compare O2 mobile and SIM-only deals. Find out about O2 coverage and extra benefits in our helpful guide. Find the latest O2 deals right now.