Sky Mobile unlimited data SIM deals

Sky Mobile is an MVNO (mobile virtual network operator) that supplies coverage through O2’s infrastructure – so it has identical 4G and 5G coverage to O2.

But Sky Mobile has some things going for it that O2 doesn’t, and it also sells a SIM Only plan with unlimited data – and that’s our focus here. This comes with unlimited minutes and texts too, but that’s not all, so read on for all the details.

Is roaming included?

Sky Mobile doesn’t offer inclusive roaming with any of its plans, but you can use your allowances in 55 destinations for just £2 per 24 hours, up to a 25GB fair usage limit.

Are there any speed restrictions?

No, Sky Mobile doesn’t have any speed restrictions for its unlimited data, so you can use it unrestricted across the UK.

Are there any fair usage restrictions?

Yes, Sky Mobile states that you shouldn’t use more than 550GB of data over a single billing cycle, and if you do this over three billing cycles within a rolling 12-month cycle, the company reserves the right to cancel your plan.

What other benefits are included?

Sky Mobile’s unlimited data plan is on a 12-month contract but you’re free to shift your allowances down (and back up if you want) at any point during that period, which is unusual for a UK network.

Plus, with Sky Mobile you have the option of an eSIM, and the network also supports Wi-Fi Calling, 4G Calling, and tethering.

What other networks should you consider?

You might also want to take a look at O2, since that network supplies Sky Mobile’s coverage. It’s a more premium network which tends to mean higher prices but also means a wider variety of plans and perks.

Then there’s Giffgaff and Tesco Mobile, both of which also share O2’s coverage.