24 month SIM only deals

Not always. Lycamobile, Mozillion, and Asda Mobile all offer no credit check options at this contract length. iD Mobile does require one. If credit history is a concern, use the no credit check filter above, or browse our no credit check SIM only deals page for a broader view across all contract lengths.

Lycamobile at £4.00 a month is the cheapest starting point: 5GB of data, 1000 minutes, 1000 texts, 5G, no credit check, on EE. Lycamobile doesn't apply mid-contract price rises, which on a two-year deal is worth factoring in. If you need more data, Asda Mobile has a 3GB deal at £5.00 a month on Vodafone with unlimited minutes and texts, free EU roaming, and no credit check. For heavier data users, iD Mobile on Three offers 20GB with unlimited minutes and texts for £6.00 a month, also with free EU roaming. Lycamobile has a 12GB option at the same £6.00 price point on EE, which suits anyone who prioritises EE's coverage, though that deal includes a promotional first three months at £3.00, so the standard £6.00 rate applies from month four. It's worth reading up on mid-contract price rises before committing to two years with any network, as policies vary.

Yes, though not every network supports them. Lycamobile, Mozillion, Asda Mobile, and iD Mobile all have eSIM-compatible 24-month deals available. Use the eSIM filter above to narrow things down, or compare the full range on our eSIM deals page. If you're not sure whether your phone supports eSIM, our guide to what an eSIM is and which UK networks support them is a good starting point.

Yes. Whether you can actually access it depends on your handset and where you live. EE and Vodafone have strong 5G coverage in most major UK cities, while Three's footprint is still growing in some rural areas. Our network coverage guide is worth a look before committing to two years on a particular network.

A 24-month deal gives you the lowest monthly cost but the least flexibility. If you're happy with your current phone and your circumstances are stable, that trade-off makes sense. A 12-month SIM only deal will typically cost a pound or two more each month for the same allowance but leaves you free to switch after a year. A 30-day SIM only deal gives you maximum flexibility with no long-term commitment, though you'll pay noticeably more per month for the same data.

By default, deals are sorted by lowest monthly price. You can change the sort order at any time using the controls above the listings and filter by data allowance, contract length, minutes, and eSIM availability. All deals shown are updated automatically. SIM Only Finder is an Ofcom-accredited UK mobile comparison site and earns a commission on deals taken out via our links. This does not affect how deals are ranked.