Best Sky Mobile SIM Only Deals 2024

Your guides to Sky Mobile SIM only deals

Sky Mobile is packed full of features – some of them unique to Sky – and there’s even more benefits to enjoy if you’re already a Sky TV customer.

In this guide...

Key features Roaming

Is it any good? FAQs

Data & calling

Key features

Data rollover – Sky Mobile’s data rollover feature, called Roll, lets you store your unused data in an online ‘piggybank’ for up to three years. You can dip into it and use it whenever you like, and even share it with family members on the same account if you want to
Flexible plans – Sky Mobile’s Mix feature allows you to change your plan each month if you so wish. SIM only contracts are for 12 months but if you find you’ve opted for too much data or not enough, you can just change your plan using the Sky Mobile app
Free unlimited calls and texts – Sky Mobile now offers free unlimited calls and texts to all customers by default
Unlimited streaming of Sky TV on your mobile – If sign up to Sky Mobile, you can use all Sky apps without eating into your data allowance. This includes Sky Go, so get ready to stream all your favourite shows on the go
Separate bills for TV and mobile – Existing Sky TV or broadband customers signing up to Sky Mobile will be able to use the same Sky iD to log into their online account. But you’ll be billed separately for mobile, so it’s easier to keep track of your outgoings
Family SIMs – You can add up to six extra SIMs to your Sky Mobile account – a feature that’s perfect for families. And if you’re in the Diamond or Platinum tiers of the Sky VIP rewards programme then you may also get a free 1GB boost in your Sky Piggybank for each SIM you add

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Data and calling

How you’re allowed to use your data and how easy it is to share or store it varies from provider to provider. So let’s take a look at Sky Mobile’s policies on the following data and calling features.

5G data speed – O2's average 5G data speed is on 90-100Mbps, depending one where you source the information – good news for Sky Mobile customers
4G data speed – 4G data speeds on O2 hit around 17-20Mbps on average, which trails quite a way behind the fastest provider of 4G, EE at around 30Mbps
Data rollover – Sky Mobile’s data rollover goes a bit further than other providers than simply adding your unused data to the following month’s allowance. Sky stores your unused data for up to three years and lets you use it whenever you want
Mobile tethering – Sky Mobile doesn’t appear to place any restrictions on the amount of data you can use for tethering, which is when you use your phone as a wifi hotspot to allow other devices to get online
Wi-Fi calling – Wi-Fi calling, which allows you to make calls over a Wi-Fi connection when you have no 4G or 5G signal, is available on Sky Mobile on all relatively revent devices (past five years or so). Older devices may still not be compatible, however
Data gifting – The Roll feature allows you to share the data stored in your Sky Piggybank with other Sky Mobile SIMs on the same account, and just recently Sky Mobile now allows gifting data to family members on the same account even during promotional events
Data caps – You can set different monthly spend caps for each SIM on your account, of between £0 and £100. This limits your spending on things not included in your plan, such as calls to premium numbers or picture messages.

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Roaming on Sky Mobile

Roaming is automatically enabled for Sky Mobile customers but if you do have a SIM only deal, you’ll need to check that your phone is ready to roam while you’re abroad. You can do this via your phone’s settings. SIM only customers with a Samsung Galaxy S6 or older, or an iPhone 4s or older, will also need to update their Sky iD roaming settings while connected to wifi when they arrive at their destination.

If you want to use voicemail while abroad then there’s also a bit of setting-up to do before you leave. You can do this by following the instructions after calling your voicemail (759 for Sky Mobile customers).

Sky Mobile offers roaming with no extra cost in 30 EU and EEA destinations – it calls this feature ‘Roaming Passport’ and it is automatically enabled.

The places where you can roam like at home for free are Austria, Azores, Belgium, Bulgaria, Canary Islands, Croatia, Cyprus (excluding Northern Cyprus), Czech Republic, Denmark, Estonia, Finland, France, Germany, Gibraltar, Greece, Hungary, Iceland, Republic of Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Madeira, Malta, Netherlands, Norway, Poland, Portugal, Reunion, Romania, Slovakia, Slovenia, Spain and Sweden.

Sky Mobile also allows you to access your UK data plan in 12 destinations outside of the EU for £5 per 24 hours. This feature is called Roaming Passport Plus and activates automatically when you start using data in any of the 12 places. If you don’t want to use it, you should turn off mobile data and data roaming in your phone’s settings before you arrive at your destination.

Sky Mobile’s Roaming Passport Plus destinations are Australia, Canada, Christmas Islands, Cocos Islands, Hong Kong, New Zealand, Qatar, South Africa, Switzerland, Thailand, Turkey (including Northern Cyprus) and the USA.

Roaming charges, which differ from country to country, apply for a further 100 non-EU destinations.

Calling abroad from the UK on Sky Mobile

All Sky Mobile customers have the ability to send texts and make calls to international numbers from the UK. How much you’re charged will vary depending on the number you’re calling or texting. Picture messages can only be sent to UK mobile numbers (you’re probably better off using a messaging service like WhatsApp anyway) and texts over 160 characters will be charged as two or more messages.

If you regularly call or text an international number, it might be worth adding International Saver to your Sky Mobile account. This gives you discounted calls and texts to more than 60 destinations (5p per minute and 10p per text).

Sky Mobile’s International Saver destinations are Australia, Austria, Azores, Bangladesh, Belgium, Bermuda, Brazil, Brunei, Bulgaria, Cambodia, Canada, Canary Islands, Chile, China, Christmas Islands, Cocos Islands, Colombia, Cyprus (including Northern Cyprus), Denmark, Finland, France, French Guiana, Germany, Greece, Guadeloupe, Guam, Hong Kong, Hungary, Iceland, India, Indonesia, Republic of Ireland, Israel, Italy, Japan, South Korea, Kuwait, Latvia, Lithuania, Luxembourg, Madeira, Malaysia, Malta, Martinique, Mexico, Mongolia, Netherlands, New Zealand, Nigeria, Northern Marianas, Norway, Pakistan, Peru, Poland, Portugal, Puerto Rico, Reunion, Romania, St Barts, St Martin, San Marino, Singapore, Slovakia, South Africa, Spain, Sweden, USA, Vatican City and the US Virgin Islands.

What our expert says...

"Sky Mobile is a great choice for families planning to get more than one SIM thanks to its excellent data sharing and rollover features. It's also a good shout for anyone who's already on Sky Broadband and/or Sky TV thanks to the cross-product benefits, which only seem to get better over time as Sky integrates its offerings further."

Dan Howdle, Broadband and mobile expert

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Frequently asked questions

How can I set up Sky Go on my device?

If you’re a Sky TV customer using Sky Go, you can download the app and stream your favourite shows on your device without using data.

What happens if I go over my Sky Mobile data plan?

If you run out of data you have options – you can use any data you may have stored in your Sky Piggybank, you can buy a 1GB add-on, or you can just pay the out-of-plan per MB cost for data. If you’re regularly going over your allowance, it’s probably worth setting a spending cap and don’t forget you can always increase your package to include more data – this will work out cheaper in the long run.

Can I keep my existing number?

Yes, but there’s a couple of things you need to do. One is to activate your Sky Mobile SIM. You’ll also need to request a Porting Authorisation Code (PAC) from your old provider, then once you have it you can submit a number transfer request to Sky. It should then take 1-2 working days for Sky to transfer your number.

Does my phone need to be unlocked to join Sky Mobile?

Most pay monthly phones are ‘locked’ to the provider you bought it from, so if that’s the case then yes you’ll need to get it unlocked before you can use a Sky Mobile SIM. You can do this by contacting your old provider.

Do I need a Sky iD to use a Sky Mobile SIM?

Yes, you need a Sky iD in order to use any Sky services. If you already have a Sky iD because you are a Sky TV or broadband customer then you’ll be able to use the same one for your Sky Mobile account. If you’re new to Sky then you’ll be given a new Sky iD, which consists of a username (or your email address) and a password.

How do I get the right size Sky Mobile SIM?

The SIM sent out with all Sky Mobile deals already comes in three sizes – nano, micro and standard. You just pop out the right size SIM to fit your device.

Does Sky Mobile run credit checks?

Yes, Sky Mobile does run credit checks on customers wanting a contract phone. If you’re declined a credit agreement by Sky, the provider won’t be able to tell you exactly why your application was rejected, but you may be able to use Sky Credit Builder, which lets you build up a payment history with the company over six months with a SIM-only contract first.

This won’t improve your credit score for applications to other providers, but will build a payment history with Sky that could lead to you getting a credit agreement for a phone if you make all your payments on time and in full.

Can I cancel Sky Mobile early?

If you enter into a SIM only deal with Sky Mobile you can leave within your 14-day cooling-off period without incurring a charge. After that, if you cancel before the end of your minimum contract period you will need to give Sky 31 days’ notice of your intention to leave and you’ll probably be charged an early termination fee.

Who can get Sky Mobile?

Anyone can get a Sky Mobile deal as long as you pass all the required credit checks etc. It’s not just for Sky TV and broadband customers, although there are more benefits to the service if you do have Sky TV.