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Compare SIM-only deals

SIM mobile deals

Compare the UK's best SIM-only deals from EE, O2, Vodafone, Three and more. 1-month, 12-month and unlimited data plans. Switch and save today.

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Until 2024, many mobile networks have increased contract prices in line with inflation. Starting in January 2025, Ofcom introduced a ban on inflation-linked price hikes for new contracts. Future price changes will need to be set and fully disclosed in pounds and pence.

*Switching from an ending 24-month handset contract to a SIM only contract. Average saving of £304 per year is based on the difference between a typical monthly handset contract cost and the cheapest available SIM only plan with an equivalent data allowance, calculated across 12 months as of March 2026. Individual savings will vary depending on your current contract and chosen SIM only deal.

The big four UK carriers

EE SIM-only deals→O2 SIM-only deals→Vodafone SIM-only deals→Three SIM-only deals→giffgaff SIM-only deals→

Every UK network we cover

O2 SIM-only plans→giffgaff SIM-only plans→iD Mobile SIM-only plans→Lebara SIM-only plans→Vodafone SIM-only plans→Three SIM-only plans→Tesco Mobile SIM-only plans→Talkmobile SIM-only plans→Sky Mobile SIM-only plans→EE SIM-only plans→VOXI SIM-only plans→SMARTY SIM-only plans→Spusu Mobile SIM-only plans→Honest Mobile SIM-only plans→

Compare SIM-only deals — questions

What is a SIM-only deal?

A SIM-only deal provides just a SIM card with a monthly allowance of minutes, texts and data, without a new handset. Contracts can be 1-month rolling, 12 months or 24 months.

Can I keep my phone number?