Best Sky Mobile SIM deals: 10GB for £6, 50GB for £11
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Have a look at the plans on Sky's SIM only that we rate best this month. We've compared prices against every other network. Last updated: 24th February 2026.
Sky's best SIM only deals
Our favourite current Sky Mobile SIM only deal
just
£6
a month
✔ Unlimited mins and 10GB data See full deal
at sky.com
(opens in new window)
We'd say the best SIM only plan Sky Mobile are selling this February is their discounted 12‑month 10GB deal below, which comes in at £6 a month and includes unlimited minutes and texts too:
It's currently the best priced 10GB data or more SIM only deal on a provider using the O2 network, even if you can beat it on price if you're open to ones not on O2. Here's which other networks can beat it:
£11 for 50GB is Sky's next best SIM deal in February
just
£11
a month
✔ Unlimited mins and 50GB data See full deal
at sky.com
(opens in new window)
To get more data, you might like the discounted £11 SIM only deal running on Sky Mobile at the moment. It's a 12‑month plan, which comes with 50GB data, unlimited minutes and texts too:
It's a good enough deal to get into Sky's best SIMs but you can actually get a lower price for a similar plan elsewhere, even if you definitely want it to use the O2 network. See where you can get it for less here:
There's also a nice unlimited data for £20 plan with them this month
just
£20
a month
✔ Unlimited mins and unlimited data See full deal
at sky.com
(opens in new window)
For people who need even more data, we'd say this is one of Sky'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 £20 a month:
In comparison to the rest of Sky'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. Here are the networks offering it cheaper:
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How Sky Mobile’s SIM only prices and benefits stack up
In our Sky Mobile review we rated them highly for giving you full access to O2’s excellent network for call signal and 5G coverage, while offering lots of nice benefits on top (see our O2 vs Sky Mobile review here).
Their SIM plans are all on 12-month contracts and they don’t offer unlimited data plans, so they don’t offer as much choice as some networks. But there’s still a wide range of plans (find their best deals here).
Sky’s best value deals tend to be their mid-range data deals. They’re a cheaper way of getting onto the O2 network than going with O2 directly while also offering some great benefits that O2 don’t:
They offer an excellent unlimited free streaming data scheme on Sky TV apps and a great data rollover scheme that lets you keep data for 3 years. And you can gift data to other users on your account if need be.
Useful link: Read our full Sky Mobile review
What else you should know about Sky Mobile’s SIM only plans
You’ll get your SIM package within 1-3 working days of ordering. Your SIM package will come with each size of SIM to put into any phone. You can’t get an eSIM on Sky yet (these networks offer them).
Once your SIM card arrives, you have 14 days to cancel your SIM to get a full refund if you’re not happy with it. Here are the full details on how to do that.
To get on a Sky Mobile SIM only contract you’ll have to pass a credit check. There’s no way to pay as you go or buy a monthly bundle to avoid this.
If you want to switch from another network to Sky while keeping your number, you’ll have to request a PAC from your old network and send it to Sky. Here’s their full guide on how to do it.
Useful link: Compare all Sky SIMs