Compare SIM Only Deals
Compare the best SIM only deals from major UK networks including Three, Vodafone, EE, O2 and more. Find cheap SIM only plans with unlimited data, calls and texts.
No deals found
Try adjusting your filters to see more results.
About SIM Only Deals
A SIM only deal gives you a mobile plan without a handset. You get a SIM card (or eSIM) with an allowance of data, calls, and texts at a lower monthly cost than a phone contract. SIM only plans are ideal if you already own a phone or want to keep your current device.
We compare SIM only deals from all the major UK networks including Three, Vodafone, EE, O2, giffgaff, SMARTY, Lebara and more. Use the filters above to narrow down by data allowance, monthly price or contract length to find the best deal for your needs.
Rolling monthly contracts offer maximum flexibility, letting you cancel anytime. Longer 12 or 24 month contracts often provide better value with lower monthly costs. Many networks also offer 5G access, EU roaming, and data rollover as part of their SIM only plans.