Sky SIM only deals: what Sky Mobile charges at home and abroad

What Sky SIM only deals were listed on 10 November 2026?

Sky Mobile prices its SIM only plans by data. You choose a data plan on a 24-month minimum term or a 30-day rolling plan, and you can pick an eSIM or a plastic SIM for each one. These were the Sky Mobile SIM only plans on Sky's plans page when we read it:

Read the table carefully, because the offers make some small plans dearer than big ones. On a 24-month term, 3GB at £3 costs less than 1GB at £8, and 50GB at £8.50 costs less than 25GB at £14, at least for the first year. On the 30-day side, 10GB at £10 is cheaper than 5GB at £13.

Sky's banner describes the unlimited deal as £18 a month, then £25 a month after 12 months. Every 24-month card also says the data plan price may increase during the minimum term, and the legal notes say prices may go up during your subscription. The page did not show an end date for these offers. The legal notes also say plans are subject to status and a credit check.

What the plan cards price is data. The legal section on the same page lists Unlimited Calls and Texts as a recurring optional extra. We could not confirm from the pages we read whether calls and texts are included in these prices or cost extra, so check at checkout.

This is desk research from Sky's own pages. We have not bought or tested a Sky Mobile plan.

Which network does Sky Mobile use?

O2. Sky Group announced in July 2018 that Telefónica UK, which runs O2, would keep providing the network for Sky Mobile under a long-term deal. Sky's own coverage line says its 4G network reaches 99% of the UK population.

How does Sky Mobile data rollover work?

Sky's plans page says you can roll your spare data for up to a year. Unused data goes into your Sky Piggybank, where you can use it later or spend it on rewards or money off a new device or accessory. Sky says the Piggybank is not available on unlimited data plans.

You can also change your data plan whenever you like, which Sky calls Mix. Sky's legal notes say some offers are lost if you Mix to another plan, so check before you change a discounted plan.

Can you get a Sky Mobile eSIM?

Yes. Every plan on the plans page offers a choice of eSIM or plastic SIM. Sky's mobile page says to check your phone is compatible, then sign into your Sky Mobile account and follow the steps to install it. Sky also says your phone must not be network-locked when you activate a Sky SIM, or calls and texts will not work.

What does Sky Mobile roaming abroad cost?

Sky's Roaming Passport Plus lets you use your UK data, calls and texts in 120 destinations for £2 a day. Sky says it has expanded the list from 55 destinations to 120. Sky's roaming article names the USA, Turkey, the UAE, Australia, Thailand and Canada among them, alongside the EU.

How the charge works, from Sky's pages:

• It switches on automatically for 24 hours when you use more than 10MB of data, make a call or send a text. There is nothing to install.
• You are only charged on the days you use your phone abroad.
• Roaming data is subject to a 25GB fair usage limit per billing cycle. Beyond 25GB, Sky charges extra data pro rata per GB.
• The Republic of Ireland is included at no extra cost. The Channel Islands, Isle of Man and Ascension Island use your UK allowance.
• Sky VIP Diamond customers may get roaming in the 120 destinations at no extra cost.

The £2 isn't part of your plan price, so Sky advises setting your spend cap to cover the trip, for example £14 for seven days. Sky also sets a £45 data roaming spend cap by default.

We could not read Sky's full list of 120 destinations or its rates for countries outside them, so check Sky's destinations page before a long-haul trip that is not one of the six named above.

Is Sky Mobile roaming in the EU and the USA good value?

For most trips, yes. A week in Spain or New York costs £14 and you keep using your own data, up to 25GB. Sky's own example is £10 for five days in the USA, Thailand or India.

Compare a week in the USA with travel eSIM prices we verified on each seller's own site in August 2026: Airalo 10GB for 7 days at $21.50, Saily 10GB for 30 days at $22.99 and Nomad 10GB for 30 days at $25. On a Sky plan with enough data, £14 for a week is cheaper. Sky's catch is that the passport only spends your plan's data. On a 3GB plan you have 3GB for the whole month, home and away.

A travel eSIM wins in three cases:

• Long trips. Thirty days at £2 is £60. Saily's 10GB for 30 days in the USA was $22.99.
• Small plans. If your Sky plan is 1GB or 3GB, an eSIM adds data you don't have.
• Destinations outside the 120. Check Sky's list first, then our cheapest eSIM table.

With an eSIM, keep the Sky line on for calls and texts but switch its data roaming off. That stops the 10MB trigger, as our data roaming guide explains. For more on the US, see our USA SIM card guide.

Who do Sky SIM only deals suit?

Sky Mobile suits UK residents who want low first-year prices, flexible data and a flat daily roaming fee in a wide list of countries, including the USA and Turkey. It suits light users who travel often less well, since a small plan gives little to roam with. If you want roaming built into the price, compare O2 SIM only deals, which run on the same network, and the UK SIM card comparison.