Best SIM offers on ASDA Mobile: 50GB for £7.95, 10GB for £5.95
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Find out which of ASDA's plans came out top when we compared their pricing on SIM only with the other UK mobile networks. Last updated: 8th September 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)
ASDA Mobile's best SIM only plan this September in our opinion is their discounted £7.95, 12‑month deal below, which comes with 50GB data, plus unlimited minutes and texts for your money:
It's currently the best priced 50GB data or more SIM only deal on a provider using the Vodafone network, even if you can beat it on price if you're open to ones not on Vodafone. See the networks that beat it here:
ASDA's 10GB for £5.95 plan is a good option too
just
£5.95
a month
✔ Unlimited mins and 10GB data See full deal
at mobile.asda.com
(opens in new window)
If you wouldn't get through that much data, we'd say this is one of ASDA's best deals on SIM only this month too. It's a discounted 12‑month plan, comes with 10GB data, unlimited minutes and texts for £5.95 a month:
There's not currently a better SIM only deal on the market than ASDA's one above if you want 10GB data or more. Here's the closest their competitors get for similar plans:
Their £5 for 3GB plan is a decent deal for September
just
£5
a month
✔ Unlimited mins and 3GB data See full deal
at mobile.asda.com
(opens in new window)
For a smaller chunk of monthly data, have a look at ASDA Mobile's discounted 3GB SIM below at £5 a month, as it's another good deal. It's on a 12‑month plan and comes with 3GB data, unlimited minutes and texts:
In comparison to the rest of ASDA'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 Vodafone network. See which networks that are cheaper 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