Tesco Mobile SIM Only Deals

Compare Tesco Mobile SIM only deals across its 12 month and 24 month range, updated daily. Tesco Mobile is an MVNO that runs on O2's network, so you get O2 coverage and reliability with Tesco's own pricing and Clubcard prices on top. It rarely undercuts the cheapest budget MVNOs on headline price, but it tends to win on customer service and breadth of 5G, which makes it a sensible pick if you want a recognised name rather than the absolute lowest monthly cost. Note that several of its deals carry a fixed price rise from 1 April 2027, so factor that into the total cost before you commit.

What network does Tesco Mobile run on?

Tesco Mobile runs entirely on O2's network through a long-standing joint venture, so coverage and signal quality match what you would get on O2 itself. That means around 99% UK population coverage on 4G and a 5G footprint that is still expanding. If you already get a decent O2 signal where you live and work, you will get the same from Tesco Mobile. If O2 is weak in your area, switching will not improve it, so check O2 coverage at your postcode before you buy.

Do I need a credit check on a Tesco Mobile SIM only contract?

Yes. Tesco Mobile runs a credit check on all its pay monthly SIM only deals, including the 12 month and 24 month contracts listed here. That is standard for contract SIMs, but if you would rather avoid a check, or a previous application has been declined, you can compare no credit check SIM only deals from other providers instead.

Which Tesco Mobile deal is worth your money right now?

The £9.00 a month 24 month deal with 12GB, unlimited minutes and texts is the pick for most people. It is a Clubcard price, so it holds that £9.00 for the full term, and 12GB comfortably covers everyday browsing, maps and social without paying for data you will not use. Light users who mainly rely on wifi can drop to the £6.00 a month 6GB deal on a 12 month term, which is the cheapest plan here. Heavier users are better served by the 30GB Clubcard deal at £12.00 a month, also on a 12 month term. Across all three, check whether the price is fixed or rises in April 2027 before you commit, since that changes the real cost over the contract.

Watch out for mid-contract price rises

Some Tesco Mobile deals come with a fixed increase from 1 April 2027. The ones that rise are all standard-price plans: the 2GB 24 month deal goes from £7.50 to £7.95 a month, the 12GB 24 month from £10.00 to £10.60, and the 6GB 12 month from £6.00 to £6.36. Because these are set increases written into the contract rather than inflation-linked rises, you know the figure up front. The Clubcard deals hold their price for the full term, so if you have a Clubcard they give you more certainty as well as a lower starting cost. Our mid-contract price rises guide explains how these work.

Can I get an eSIM on a Tesco Mobile SIM only contract?

Yes, on most of the deals listed here. You order a physical SIM first, then switch to an eSIM by contacting Tesco Mobile's customer service team. If you would rather skip the physical SIM entirely, or you are not sure whether your handset supports eSIM, it is worth comparing the wider eSIM only deals before you decide.

Does 5G come as standard on Tesco Mobile SIM only deals?

Yes. Every Tesco Mobile deal on this page includes 5G at no extra cost. To use it you will need a 5G ready handset and to be in an area with 5G coverage, which on Tesco Mobile means wherever O2 has switched on 5G. Coverage is widest in towns and cities and still filling in elsewhere, so check your location if fast data matters to you. Our network coverage guide explains how to check before you commit.

Tesco Mobile 12 month vs 24 month: which is right for you?

The 24 month deals give you the lower starting price but lock you in for longer, and several of them rise from April 2027. The 12 month deals cost a little more upfront, with 12GB at £11.00 against £10.00 for the same allowance on 24 months. That 24 month version rises to £10.60 in April 2027 while the 12 month one holds at £11.00, so over a year the gap is smaller than it first looks, and you keep the freedom to switch sooner. If certainty and flexibility matter more to you than saving a little each month, the 12 month deals are the safer choice. If you are confident you will stay put, the 24 month deals are cheaper at the outset. You can also compare these against the wider 12 month and 24 month markets to see how Tesco Mobile stacks up.

How we rank Tesco Mobile SIM only deals

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.