Tesco Mobile SIM only deals: 10GB for £10, 60GB for £14
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Check which of Tesco's choices on SIM only work out best on price this month, compared to other UK mobile networks. Last updated: 10th September 2026.
Tesco best SIM only deals
This month's overall best Tesco Mobile SIM only deal
just
£14
a month
✔ Unlimited mins and 60GB data See full deal
at tescomobile.com
(opens in new window)
Tesco Mobile's best SIM only plan this September in our opinion is their discounted £15 £14, 24‑month deal below, which comes with 60GB data, plus unlimited minutes and texts for your money:
£30 Clubcard voucher (automatic, no need to claim)With £1 off per month, the total saving over the deal’s 24 months adds up to £24.
In comparison to the rest of Tesco's current SIM only plans, it's one of the best. But it is beatable on price, even if you're set on joining a provider that uses the O2 network. See lower-priced networks' deals here:
Their £22 SIM with unlimited data is our next favourite this September
just
£22
a month
✔ Unlimited mins and unlimited data See full deal
at tescomobile.com
(opens in new window)
To satisfy bigger data needs, we'd say this is one of Tesco's best deals on SIM only this month too. It's a discounted 12‑month plan, comes with unlimited data, unlimited minutes and texts for £30 £22 a month:
You’ll save £96 in total when you add up that £8 monthly saving over the deal’s 12 months.
It does enough to get into our pick of Tesco's best SIMs but that doesn't mean it's unbeatable on price. Other providers (even ones that use the O2 network) can beat it. Here are other networks you can beat it on:
We also like their £9.50 for 12GB plan
just
£9.50
a month
✔ Unlimited mins and 12GB data See full deal
at tescomobile.com
(opens in new window)
For less data to use each month, have a look at Tesco Mobile's discounted 12GB SIM below at £11 £9.50 a month, as it's another good deal. It's on a 12‑month plan and comes with 12GB data, unlimited minutes and texts:
It’s a total discount of £18 over the 12 months, when you add up the deal’s monthly £1.50 saving.
Compared to Tesco's other deals, this comes out among the best. But it's worth knowing you can get a lower price elsewhere, even on other providers that use the O2 network. See the networks with cheaper plans here:
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How Tesco Mobile’s benefits and SIM only prices compare
In our review of Tesco Mobile we said we liked the fact that you get access to O2’s great mix of coverage, as well as O2’s fast 5G network. They offer the same coverage experience as being on O2 directly.
You can take a 1-month, 12-month or 24-month contract. Usually, the longer the contract the less you’ll pay each month, but it’s worth comparing plans here to check for any special deals on different plans.
Tesco tend to offer good value on mid-range data plans. And if you’ve got a Clubcard you can get better value deals than their regular range, but only on certain tariffs. They typically offer better value than O2.
One massive benefit is that you can collect Clubcard points from shopping at Tesco stores to get money off your monthly bill and vice versa. And you get extra benefits for adding other users onto your account.
Useful link: Read our full Tesco Mobile review
Handy information about Tesco’s SIM only plans
Your Tesco Mobile SIM will be delivered within 1-5 working days (depends where you live and when you ordered). Or you can take one from a Tesco store. You’ll get every size of SIM, but you can’t get an eSIM.
You’ll have 14 days after your SIM arrives to return it if you’re not satisfied. You’ll get a full refund, even if you’ve used some of your data. Here’s how you can do it.
To join any Tesco SIM only contract you’ll have to pass a credit check. If you’ve got a bad or no credit history you can still join them by taking out a “Rocket Pack” which are bundles of mins, texts and data.
To keep your number when switching to Tesco Mobile from another network, you can request a PAC from you current provider and send it to Tesco whenever.
Useful link: Compare all Tesco SIMs