Black Friday SIM only deals

Not always. Every plan at the budget end, including Mozillion, Spusu, Lycamobile and Asda Mobile, comes with no credit check. O2, Three and Vodafone usually run one on their contract plans, and a Black Friday offer doesn't change that. If you've had a recent decline or have a thin credit file, start with our no credit check SIM only deals.

Mozillion at £3.90 a month is the pick for most light users: 3GB of 5G data on EE, unlimited minutes and texts, no credit check and no annual price rises, all on a 1 month plan. Sign up for 24 months and the same plan drops to £3.50, but during Black Friday the flexibility is worth the extra 40p. If a major network launches a stronger offer later in the month, you can move without paying to leave. If you only need the basics, Spusu at £2.90 a month gives you 1GB on a rolling plan with free EU roaming and no annual price rises. If 3GB won't last you, Lycamobile at £4.00 a month for 5GB is strong value, though that price is tied to a 24 month contract.

Many Black Friday offers on the major networks are introductory prices that revert to a higher standard rate after one, three or six months. A plan advertised at half price for six months on a 24 month contract can cost more overall than a cheaper flat-rate plan. Before you commit, check the monthly cost once the offer ends and work out the total over the full term. The budget deals at the top of this page are flat monthly prices with no introductory discount.

Yes, though not every network supports them. Mozillion, Spusu, Lycamobile and Asda Mobile have eSIM-compatible Black Friday deals available. Use the eSIM filter above or browse our eSIM deals, and if you're not sure your phone is compatible, our eSIM guide explains how to check.

Yes. You'll need a 5G-compatible phone and to be in a 5G area to use it, so check network coverage where you live and work. The cheapest data plans from Mozillion, Spusu and Lycamobile all include 5G at no extra cost. Asda Mobile's calls and texts plan has no data, so 5G doesn't apply there.

Black Friday rewards flexibility as much as commitment. A 30 day SIM only deal costs slightly more each month but leaves you free to switch the moment a better offer appears. A 12 month SIM only deal locks in a Black Friday price for a year without tying you in for long. A 24 month SIM only deal usually has the lowest monthly price, but only makes sense if the network won't raise prices mid-contract and you're confident in its coverage. If you're happy with your current phone and network, a longer deal from a network with no annual price rises, such as Mozillion, is the safest way to bank the saving.

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.