Sky Mobile 1GB SIM, £1/mo (£5 after 12 months), 24 months
1GBof 5G data
1 GBof 5G data
£1.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky Mobile
at Sky MobileDeal details
Sky Mobile SIM-only deals
Sky Mobile SIM only plans on O2's network: Data Rollover (unused data saved up to 3 years), Mix (change plan anytime), 5G included, and data-free Sky app streaming for Sky TV customers. Each price in the deals below is shown as listed by the provider.
List of SIM-only deals (20)
20 deals · from 1 retailer · Updated 2h ago
24 month contract
£1 a month on a 24-month contract, with price rises each year
Sky Mobile 10GB SIM, £5/mo, 24 months
10GBof 5G data
10 GBof 5G data
£5.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky Mobile
at Sky MobileDeal details
Sky Mobile 100MB SIM, £5/mo, 24 months
0.1GBof 5G data
0.1 GBof 5G data
£5.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky Mobile
at Sky MobileDeal details
Sky Mobile 5GB SIM, £6/mo (£10 after 12 months), 24 months
5GBof 5G data
5 GBof 5G data
£6.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky Mobile
at Sky MobileDeal details
Sky Mobile SIM Only on Unlimited Calls and Texts 10GB…
10GBof 5G data
10 GBof 5G data
£6.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky
at SkyDeal details
Sky Mobile SIM Only on Unlimited Calls and Texts 5GB (24 Month contract)…
5GBof 5G data
5 GBof 5G data
£6.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky
at SkyDeal details
Sky Mobile 3GB SIM, £9/mo, 24 months
3GBof 5G data
3 GBof 5G data
£9.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky Mobile
at Sky MobileDeal details
Sky Mobile SIM Only on Unlimited Calls and Texts 3GB (24 Month contract)…
3GBof 5G data
3 GBof 5G data
£9.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky
at SkyDeal details
Sky Mobile 25GB SIM, £10/mo (£14 after 12 months), 24 months
25GBof 5G data
25 GBof 5G data
£10.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky Mobile
at Sky MobileDeal details
Sky Mobile SIM Only on Unlimited Calls and Texts 25GB…
25GBof 5G data
25 GBof 5G data
£10.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky
at SkyDeal details
Sky Mobile SIM Only on Unlimited Calls and Texts 50GB…
50GBof 5G data
50 GBof 5G data
£11.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky
at SkyDeal details
Sky Mobile SIM Only on Unlimited Calls and Texts 5GB (1 Month contract)…
5GBof 5G data
5 GBof 5G data
£11.00a month
£0.00 upfront- No upfront cost
- 1-month rolling
Buy nowat Sky
at SkyDeal details
Sky Mobile SIM Only on Unlimited Calls and Texts 3GB (1 Month contract)…
3GBof 5G data
3 GBof 5G data
£12.00a month
£0.00 upfront- No upfront cost
- 1-month rolling
Buy nowat Sky
at SkyDeal details
Sky Mobile 75GB SIM, £14/mo (£22 after 12 months), 24 months
75GBof 5G data
75 GBof 5G data
£14.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky Mobile
at Sky MobileDeal details
Sky Mobile SIM Only on Unlimited Calls and Texts 75GB…
75GBof 5G data
75 GBof 5G data
£14.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky
at SkyDeal details
Sky Mobile SIM Only on Unlimited Calls and Texts 25GB (1 Month contract)…
25GBof 5G data
25 GBof 5G data
£15.00a month
£0.00 upfront- No upfront cost
- 1-month rolling
Buy nowat Sky
at SkyDeal details
Sky Mobile 50GB SIM, £17/mo, 24 months
50GBof 5G data
50 GBof 5G data
£17.00a month
£0.00 upfront- No upfront cost
Buy nowat Sky Mobile
at Sky MobileDeal details
Sky Mobile SIM Only on Unlimited Calls and Texts 75GB (1 Month contract)…
75GBof 5G data
75 GBof 5G data
£19.00a month
£0.00 upfront- No upfront cost
- 1-month rolling
Buy nowat Sky
at SkyDeal details
Sky Mobile SIM Only on Unlimited Calls and Texts Unlimited…
Unlimited5G data
Unlimited5G data
£20.00a month
£0.00 upfront- Unlimited data
- No upfront cost
Buy nowat Sky
at SkyDeal details
Sky Mobile Unlimited SIM, £21/mo (£25 after 12 months), 24 months
Unlimited5G data
Unlimited5G data
£21.00a month
£0.00 upfront- Unlimited data
- No upfront cost
Buy nowat Sky Mobile
at Sky MobileDeal details
Showing 20 of 20 deals
The cheapest Sky Mobile SIM only deal listed on SwitchSquid on 3 November 2026 is £1.00 a month for 1GB of data on a 24-month contract. We compare 20 Sky Mobile SIM only deals.
What Are Sky Mobile SIM-Only Deals?
Sky Mobile SIM-only deals give you a SIM card with a monthly data allowance, unlimited calls, and unlimited texts, without the need to buy a new phone. You simply put the SIM into the phone you already own and start using it straight away.
These deals are a great choice if you are happy with your current handset and just want a cheaper monthly plan. Sky Mobile SIM-only deals are available on 12-month contracts, which makes them easy to plan for while still giving you the freedom to switch when your term ends.
On Switch, you can compare all the latest Sky Mobile SIM-only deals in one place and find the plan that fits your budget and data needs.
Why Choose Sky Mobile?
Sky Mobile is not a network in its own right. It runs on the O2 network, which means you get very strong coverage across the UK. Here are some of the main reasons people choose Sky Mobile SIM-only deals:
1
99% UK population coverage
Using the O2 4G and 5G network.
2
Unlimited calls and texts
Included on every plan.
3
Data Rollover
Any unused data moves into your Sky Piggybank and stays there for up to 3 years.
4
Mix feature
Change your data plan at any time within your 12-month contract.
5
Data-free Sky app streaming
Sky TV customers can stream Sky Go, Sky Sports, Sky Kids, and other Sky apps without using their data allowance.
6
Free WiFi hotspots
Access to thousands of hotspots across the UK.
7
5G access where available
Through O2's growing 5G network, at no extra cost.
8
Roaming Passport Plus
Use your UK allowance in 55+ destinations for a small daily charge.
These features make Sky Mobile stand out, especially the Data Rollover. Most networks simply delete your unused data at the end of the month, but with Sky Mobile, that data is saved for when you need it.
Sky Mobile SIM-Only Plans, Overview
Sky Mobile offers a range of data plans to suit different types of users. All plans come with unlimited minutes and texts as standard.
← Swipe to see all columns →
Note: Exact prices and availability may change. Always compare the latest Sky Mobile SIM-only deals on Switch to see current pricing and offers.
Sky Mobile also runs promotional offers from time to time, such as half-price data for the first 3 or 6 months of a 12-month contract. These can make already affordable plans even cheaper, so it is worth checking regularly.
How to Choose the Right Sky Mobile SIM-Only Deal
1
How much data do you use?
Check your current phone's settings to see your average monthly data usage. Light users (emails, maps, occasional browsing) typically need 3GB to 5GB. Moderate users (social media, music streaming, video calls) suit 10GB to 20GB. Heavy users (video streaming, gaming, using phone as a hotspot) should consider 30GB or more, or go unlimited. Remember that with Sky Mobile's Data Rollover, any data you don't use is saved, so you may not need to buy a bigger plan.
2
Are you a Sky TV customer?
If you already have a Sky TV subscription, you get an extra benefit: streaming Sky apps does not use your monthly data at all. You can watch Sky Go, Sky Sports, and Sky Kids on your phone without touching your data allowance. For Sky TV customers, a smaller data plan may be all you need.
3
Do you travel abroad?
Sky Mobile's Roaming Passport Plus lets you use your UK calls, texts, and data in over 55 countries for a daily charge. This includes most of Europe, the USA, Canada, Australia, New Zealand, South Africa, Turkey, and the UAE. If you travel often, this is a very useful benefit.
4
Do you need flexibility?
Sky Mobile's Mix feature lets you change your data plan at any time during your 12-month contract. So if your needs change, for example you start working from home and use less data, you are not stuck on the same plan for the whole year.
Sky Mobile SIM-Only Deals vs Other Networks
← Swipe to see all columns →
Sky Mobile offers a strong combination of reliable coverage, good value, and useful extras like data rollover that most networks simply do not offer. For anyone who already uses Sky TV, the data-free streaming benefit adds even more value.
Do You Need a Credit Check for Sky Mobile SIM-Only Deals?
Yes. Sky Mobile runs a soft credit check when you apply for a SIM-only deal. This type of check does not affect your credit score. However, if you have a very poor credit history, you may not be approved. Sky Mobile does not offer a pay-as-you-go or no-credit-check option at this time.
How to Get a Sky Mobile SIM-Only Deal on Switch
1
Compare plans
Use Switch to see all current Sky Mobile SIM-only deals side by side.
2
Choose your plan
Pick the data allowance and price that works for you.
3
Keep your number
Text PAC to 65075 to get your porting code from your current network, then use it when signing up. Your number will transfer within one working day.
4
Get your SIM
Sky will send your SIM in 1 to 3 working days. You have 14 days to cancel for a full refund if you change your mind.
The whole process is quick, easy, and done entirely online. There are no long retention calls or complicated forms.
Why Compare Sky Mobile SIM-Only Deals on Switch?
Switch makes it easy to compare Sky Mobile SIM-only deals alongside other networks, all in one place. Instead of going to each network's website separately, you can see all the options together and make a clear, informed decision.
Our comparison is updated regularly so you always see the latest deals, including any promotional offers or price changes. Whether you are looking for the cheapest plan, the most data, or the best overall value, Switch helps you find it quickly.
Compare Sky Mobile SIM-only deals on Switch
Make sure you are not paying more than you need to.
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FAQs
Can I use my Sky Mobile SIM in any phone?
Yes. Sky Mobile SIMs work in any unlocked phone. If your phone is locked to another network, you may need to unlock it first before using a Sky Mobile SIM.
Does Sky Mobile offer eSIM?
What is the Sky Piggybank?
Can I change my Sky Mobile plan mid-contract?
Is Sky Mobile good for 5G?
Do I need to be a Sky TV customer?
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