ASDA Mobile SIM only offers: 50GB for £7.95, 10GB for £5.95
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We compare the whole SIM only range on ASDA to find the ones that come out best in price comparisons with other networks. Last updated: 16th July 2026.
ASDA's best SIM only deals
Our highest-rated SIM only deal on ASDA Mobile this month
just
£7.95
a month
✔ Unlimited mins and 50GB data See full deal
at mobile.asda.com
(opens in new window)
We'd say the best SIM only plan ASDA Mobile are selling this July is their discounted 12‑month 50GB deal below, which comes in at £7.95 a month and includes unlimited minutes and texts too:
It's actually possible to beat this deal if you're not fussed whether your SIM is with a provider using the Vodafone network. But if you are, it is the current best-priced option. See which networks that are cheaper here:
ASDA's £5.95 for 10GB is our next best choice now
just
£5.95
a month
✔ Unlimited mins and 10GB data See full deal
at mobile.asda.com
(opens in new window)
For people who don't need that much data, the next best SIM only plan on ASDA Mobile in our opinion is their discounted 12‑month one below. For £5.95 a month, you get 10GB data, plus unlimited minutes and texts:
ASDA's is actually the best-priced SIM only deal in the UK at the moment for 10GB data or more. No other providers can beat it for monthly cost. Here's each network's nearest plan:
Their £5 SIM with 3GB is our next favourite this July
just
£5
a month
✔ Unlimited mins and 3GB data See full deal
at mobile.asda.com
(opens in new window)
If that'd be too much data for you, another good deal on ASDA Mobile at the moment is their discounted £5 SIM only plan here, which includes 3GB data instead, plus unlimited minutes and texts:
It does enough to get into our pick of ASDA's best SIMs but that doesn't mean it's unbeatable on price. Other providers (even ones that use the Vodafone network) can beat it. See who's offering it for less here:
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How ASDA compare for SIM only prices and benefits
In our review of ASDA Mobile, we said we liked the fact that ASDA share the same coverage and 4G speeds as their hosts Vodafone (5G is capped on their unlimited plans) as well as having WiFi calling and 4G calling.
They sell all of their SIM only plans as monthly bundles of mins, texts and data. This can be set to auto-renew every month. That lets you switch plans each month without being stuck on a contract.
In terms of price, they’re generally one of the cheapest providers, as well as having some of the most competitive small data plans of all providers on the Vodafone network.
ASDA still include inclusive roaming in these 36 EU destinations. Their low-cost data add-ons and extra parental controls also make them great for putting your kids onto a new plan.
Useful link: Read our full ASDA Mobile review
Good things to know about ASDA’S SIM only plans
Your ASDA SIM will arrive between 2-3 working days after ordering. Your SIM package will contain every size of SIM to fit into any phone. ASDA don’t offer eSIMs (here are all the networks that do).
It’s your right as a customer to get a refund for anything you buy online. So if you’re not satisfied with your ASDA SIM you can return it within 14 days to get a full refund. Here’s how you can do it.
Since you’re paying for everything up front with ASDA, you won’t have to pass a credit check for your SIM. All you have to do is set up an account with your details so they know who you are.
To switch from your old network to ASDA while keeping your number, you’ll need to request a PAC from your old provider and give it to ASDA whenever. For more details follow their instructions here.
Useful link: Compare all ASDA Mobile SIMs