SIM-only deals can save you money on your phone bill every month. Compare the UK’s best value SIM-only deals.

In the UK, there are currently more than 20 different mobile networks offering SIM-only deals.

Switching to a SIM-only deal can be a good way to save money on your phone bill as you’ll get a low-cost SIM card with inclusive minutes, texts and mobile data. You can also keep your existing phone number when you switch to a SIM-only deal.

In this article, we’ll review and compare the UK’s best value SIM-only deals. This includes SIM-only deals from big name mobile networks such as EE, O2, Three and Vodafone. We’ll also look at lower-cost providers including giffgaff, iD Mobile, SMARTY and VOXI.

SIM Only Deals: By Type

There are a couple of different types of SIM-only deal, depending on the features you’re looking for. For instance, you might be looking for an unlimited data plan or a 5G SIM-only deal.

Select the type of the SIM card you’re looking for to see a more detailed comparison of available SIM-only deals:

Unlimited Data Plans

Get a SIM-only deal without limits on how much you can download.

Available from £15/month

5G SIM Only Deals

Get 5G coverage on a SIM Only deal, with download speeds of 100Mbps+.

Available from £4.50/month

Pay As You Go SIMs

SIM cards with no contract & credit check. Just pay for what you use.

Available with no monthly fee

eSIM Only Plans

Get an eSIM for your phone & use dual-SIM on an iPhone, Samsung or Pixel.

Available from £6/month

Considering multiple types of SIM card for your smartphone? Continue reading, or compare all of the available options.

Use your SIM card in a tablet, dongle or mobile broadband router? For the most part, it should be possible to get a regular SIM-only deal, but there are a couple of exceptions. See our guide to tablet and mobile broadband SIM cards for more information.

SIM Only Deals: By Coverage Provider

Another useful way to filter SIM-only deals is by looking at the network coverage provider they’re using. On many networks, you’ll get the exact same coverage as they share the same underlying network and mobile masts.

Select a coverage provider to see a more detailed comparison of available SIM-only plans:

SIM Cards with EE Coverage

Including BT Mobile, Plusnet Mobile & 1pMobile.

Available from £8/month

SIM Cards with O2 Coverage

Including giffgaff, Lycamobile, Sky, Tesco & Virgin.

Available from £5.95/month

SIM Cards with Three Coverage

Including Honest Mobile, iD Mobile, SMARTY & Superdrug.

Available from £5/month

SIMs with Vodafone Coverage

Including ASDA Mobile, Lebara, Talkmobile & VOXI.

Available from £4/month

Want to check coverage at your address? Simply enter your postcode on the following coverage maps to see the coverage where you are:

Compare All SIM Only Deals

If you’d like to compare all of the available SIM-only deals, you can use the following interactive comparison tool.

Start by choosing how much data you want on your SIM-only plan. You can also filter down by maximum contract length and the mobile networks you’d be happy to consider:

How much data do you want on your plan each month?

How long are you willing to commit for on a contract?

Which networks would you be happy to take a plan from?

Showing 259 of 259 price plans that match your criteria

NetworkMinutesTextsDataMonthly
Cost
Lebara Mobile1,0001,0003GB£4.50
12 months
TalkmobileUnlimitedUnlimited4GB£4.95
1 month
SmartyUnlimitedUnlimited4GB£5.00
1 month
ASDA MobileUnlimitedUnlimited3GB£5.00
1 month
Lebara Mobile1,0001,0003GB£5.00
1 month
SmartyUnlimitedUnlimited2GB£5.00
1 month
Three200Unlimited2GB£5.00
12 months
ThreeUnlimitedUnlimited1GB£5.00
12 months
ThreeUnlimitedUnlimited1GB£5.00
24 months
TalkmobileUnlimitedUnlimited6GB£5.95
1 month
Virgin MobileUnlimitedUnlimited6GB£5.95
1 month
ThreeUnlimitedUnlimited8GB£6.00
12 months
iD MobileUnlimitedUnlimited6GB£6.00
24 months
iD MobileUnlimitedUnlimited6GB£6.00
12 months
iD MobileUnlimitedUnlimited6GB£6.00
1 month
SmartyUnlimitedUnlimited6GB£6.00
1 month
ThreeUnlimitedUnlimited4GB£6.00
12 months
Lebara MobileUnlimitedUnlimited4GB£6.00
1 month
VodafoneUnlimitedUnlimited4GB£6.00
12 months
ThreeUnlimitedUnlimited4GB£6.00
24 months
Sky MobileUnlimitedUnlimited4GB£6.00
12 months
giffgaffUnlimitedUnlimited1GB£6.00
1 month
TalkmobileUnlimitedUnlimited7GB£6.50
1 month
TalkmobileUnlimitedUnlimited12GB£6.95
1 month
ThreeUnlimitedUnlimited20GB£7.00
12 months
SmartyUnlimitedUnlimited16GB£7.00
1 month
iD MobileUnlimitedUnlimited15GB£7.00
1 month
iD MobileUnlimitedUnlimited15GB£7.00
24 months
iD MobileUnlimitedUnlimited15GB£7.00
12 months
Virgin MobileUnlimitedUnlimited12GB£7.00
1 month
ThreeUnlimitedUnlimited8GB£7.00
12 months
Lebara MobileUnlimitedUnlimited8GB£7.00
£1.99 for 6 months
1 month
ASDA MobileUnlimitedUnlimited5GB£7.00
1 month
Sky MobileUnlimitedUnlimited3GB£7.00
12 months
Tesco MobileUnlimitedUnlimited2GB£7.50
12 months
Tesco MobileUnlimitedUnlimited2GB£7.50
24 months
TalkmobileUnlimitedUnlimited30GB£7.95
1 month
SmartyUnlimitedUnlimited30GB£8.00
1 month
ThreeUnlimitedUnlimited30GB£8.00
24 months
iD MobileUnlimitedUnlimited30GB£8.00
1 month
iD MobileUnlimitedUnlimited24GB£8.00
24 months
iD MobileUnlimitedUnlimited24GB£8.00
12 months
iD MobileUnlimitedUnlimited24GB£8.00
1 month
VodafoneUnlimitedUnlimited20GB£8.00
12 months
Virgin MobileUnlimitedUnlimited15GB£8.00
1 month
ThreeUnlimitedUnlimited12GB£8.00
12 months
SmartyUnlimitedUnlimited12GB£8.00
4 months half price
1 month
ThreeUnlimitedUnlimited12GB£8.00
24 months
Plusnet MobileUnlimitedUnlimited5GB£8.00
1 month
Sky MobileUnlimitedUnlimited4GB£8.00
12 months
giffgaffUnlimitedUnlimited3GB£8.00
1 month
Virgin MobileUnlimitedUnlimited2GB£8.00
1 month
ThreeUnlimitedUnlimited1GB£8.00
24 months
ThreeUnlimitedUnlimited30GB£9.00
12 months
Virgin MobileUnlimitedUnlimited25GB£9.00
1 month
Lebara MobileUnlimitedUnlimited15GB£9.00
12 months
Lebara MobileUnlimitedUnlimited15GB£9.00
1 month
Tesco MobileUnlimitedUnlimited12GB£9.00
24 months
Sky MobileUnlimitedUnlimited8GB£9.00
12 months
Lebara MobileUnlimitedUnlimited6GB£9.00
12 months
ThreeUnlimitedUnlimited4GB£9.00
24 months
ThreeUnlimitedUnlimited1GB£9.00
12 months
TalkmobileUnlimitedUnlimited100GB£9.95
1 month
TalkmobileUnlimitedUnlimited70GB£9.95
1 month
TalkmobileUnlimitedUnlimited60GB£9.95
1 month
TalkmobileUnlimitedUnlimited50GB£9.95
1 month
ThreeUnlimitedUnlimited100GB£10.00
12 months
iD MobileUnlimitedUnlimited100GB£10.00
1 month
iD MobileUnlimitedUnlimited100GB£10.00
12 months
iD MobileUnlimitedUnlimited80GB£10.00
24 months
VodafoneUnlimitedUnlimited40GB£10.00
12 months
Virgin MobileUnlimitedUnlimited30GB£10.00
1 month
VOXIUnlimitedUnlimited15GB£10.00
1 month
Lebara MobileUnlimitedUnlimited15GB£10.00
1 month
giffgaffUnlimitedUnlimited15GB£10.00
1 month
Plusnet MobileUnlimitedUnlimited15GB£10.00
1 month
giffgaffUnlimitedUnlimited12GB£10.00
1 month
ASDA MobileUnlimitedUnlimited12GB£10.00
1 month
ThreeUnlimitedUnlimited8GB£10.00
24 months
Lebara MobileUnlimitedUnlimited6GB£10.00
1 month
Superdrug MobileUnlimitedUnlimited5GB£10.00
1 month
ThreeUnlimitedUnlimited4GB£10.00
12 months
Virgin MobileUnlimitedUnlimited4GB£10.00
1 month
IQ MobileUnlimitedUnlimited3GB£10.00
3 months
Tesco MobileUnlimitedUnlimited12GB£11.00
12 months
ThreeUnlimitedUnlimited8GB£11.00
12 months
VodafoneUnlimitedUnlimited1GB£11.00
24 months
TalkmobileUnlimitedUnlimited120GB£11.95
1 month
TalkmobileUnlimitedUnlimited100GB£11.95
1 month
TalkmobileUnlimitedUnlimited50GB£11.95
1 month
iD MobileUnlimitedUnlimited150GB£12.00
12 months
SmartyUnlimitedUnlimited120GB£12.00
1 month
ThreeUnlimitedUnlimited100GB£12.00
24 months
Virgin MobileUnlimitedUnlimited100GB£12.00
1 month
Plusnet MobileUnlimitedUnlimited30GB£12.00
1 month
ThreeUnlimitedUnlimited30GB£12.00
24 months
Sky MobileUnlimitedUnlimited25GB£12.00
12 months
giffgaffUnlimitedUnlimited20GB£12.00
1 month
VOXIUnlimitedUnlimited20GB£12.00
1 month
ThreeUnlimitedUnlimited12GB£12.00
24 months
O2UnlimitedUnlimited10GB£12.00
24 months
Virgin MobileUnlimitedUnlimited8GB£12.00
1 month
VodafoneUnlimitedUnlimited1GB£12.00
12 months
O2UnlimitedUnlimited1GB£12.00
12 months
Honest MobileUnlimitedUnlimited4GB£12.15
12 months
Tesco MobileUnlimitedUnlimited60GB£12.50
24 months
Tesco MobileUnlimitedUnlimited30GB£12.50
24 months
IQ MobileUnlimitedUnlimited10GB£12.50
3 months
Lebara MobileUnlimitedUnlimited30GB£13.50
12 months
Honest MobileUnlimitedUnlimited4GB£13.50
1 month
iD MobileUnlimitedUnlimited250GB£14.00
24 months
iD MobileUnlimitedUnlimited250GB£14.00
12 months
iD MobileUnlimitedUnlimited200GB£14.00
1 month
Virgin MobileUnlimitedUnlimited75GB£14.00
1 month
Virgin MobileUnlimitedUnlimited16GB£14.00
1 month
ThreeUnlimitedUnlimited12GB£14.00
12 months
TalkmobileUnlimitedUnlimited200GB£14.95
1 month
ASDA MobileUnlimitedUnlimitedUnlimited£15.00
1 month
iD MobileUnlimitedUnlimitedUnlimited£15.00
1 month
iD MobileUnlimitedUnlimited250GB£15.00
1 month
VodafoneUnlimitedUnlimited50GB£15.00
12 months
Plusnet MobileUnlimitedUnlimited50GB£15.00
1 month
VOXIUnlimitedUnlimited30GB£15.00
1 month
Lebara MobileUnlimitedUnlimited30GB£15.00
1 month
giffgaffUnlimitedUnlimited30GB£15.00
1 month
IQ MobileUnlimitedUnlimited30GB£15.00
3 months
Tesco MobileUnlimitedUnlimited30GB£15.00
12 months
giffgaffUnlimitedUnlimited25GB£15.00
1 month
ASDA MobileUnlimitedUnlimited25GB£15.00
1 month
O2UnlimitedUnlimited20GB£15.00
24 months
Superdrug MobileUnlimitedUnlimited15GB£15.00
1 month
O2UnlimitedUnlimited5GB£15.00
12 months
VodafoneUnlimitedUnlimited5GB£15.00
24 months
EEUnlimitedUnlimited1GB£15.00
24 months
Honest MobileUnlimitedUnlimited10GB£15.75
12 months
SmartyUnlimitedUnlimitedUnlimited£16.00
1 month
iD MobileUnlimitedUnlimitedUnlimited£16.00
24 months
iD MobileUnlimitedUnlimitedUnlimited£16.00
12 months
ThreeUnlimitedUnlimitedUnlimited£16.00
24 months
iD MobileUnlimitedUnlimitedUnlimited£16.00
1 month
ThreeUnlimitedUnlimited250GB£16.00
24 months
Virgin MobileUnlimitedUnlimited200GB£16.00
1 month
ThreeUnlimitedUnlimited100GB£16.00
24 months
Virgin MobileUnlimitedUnlimited32GB£16.00
1 month
ThreeUnlimitedUnlimited30GB£16.00
12 months
VodafoneUnlimitedUnlimited5GB£16.00
12 months
ThreeUnlimitedUnlimitedUnlimited£17.00
12 months
iD MobileUnlimitedUnlimitedUnlimited£17.00
1 month
SmartyUnlimitedUnlimited200GB£17.00
1 month
EEUnlimitedUnlimited1GB£17.00
12 months
Tesco MobileUnlimitedUnlimited100GB£17.50
24 months
Tesco MobileUnlimitedUnlimited60GB£17.50
12 months
Honest MobileUnlimitedUnlimited10GB£17.50
1 month
ThreeUnlimitedUnlimited100GB£18.00
12 months
Lebara MobileUnlimitedUnlimited30GB£18.00
12 months
Superdrug MobileUnlimitedUnlimited20GB£18.00
1 month
O2UnlimitedUnlimited20GB£18.00
12 months
EEUnlimitedUnlimited5GB£18.00
24 months
VodafoneUnlimitedUnlimited2GB£18.00
24 months
ThreeUnlimitedUnlimited4GB£19.00
1 month
VodafoneUnlimitedUnlimited2GB£19.00
12 months
Superdrug MobileUnlimitedUnlimitedUnlimited£20.00
1 month
ASDA MobileUnlimitedUnlimitedUnlimited£20.00
1 month
ThreeUnlimitedUnlimitedUnlimited£20.00
24 months
ThreeUnlimitedUnlimited250GB£20.00
12 months
VodafoneUnlimitedUnlimited150GB£20.00
12 months
O2UnlimitedUnlimited120GB£20.00
24 months
VOXIUnlimitedUnlimited100GB£20.00
1 month
VodafoneUnlimitedUnlimited100GB£20.00
12 months
giffgaffUnlimitedUnlimited100GB£20.00
1 month
Tesco MobileUnlimitedUnlimited100GB£20.00
12 months
Virgin MobileUnlimitedUnlimited100GB£20.00
1 month
giffgaffUnlimitedUnlimited80GB£20.00
1 month
ASDA MobileUnlimitedUnlimited50GB£20.00
1 month
Sky MobileUnlimitedUnlimited40GB£20.00
12 months
Lebara MobileUnlimitedUnlimited30GB£20.00
1 month
EEUnlimitedUnlimited5GB£20.00
12 months
O21,000Unlimited1GB£20.00
1 month
O2UnlimitedUnlimited100GB£21.00
12 months
EEUnlimitedUnlimited25GB£21.00
24 months
VodafoneUnlimitedUnlimited20GB£21.00
12 months
O2UnlimitedUnlimited250GB£22.00
24 months
ThreeUnlimitedUnlimited12GB£22.00
1 month
VodafoneUnlimitedUnlimited6GB£22.00
24 months
EEUnlimitedUnlimited1GB£22.00
1 month
Honest MobileUnlimitedUnlimitedUnlimited£22.50
12 months
Lebara MobileUnlimitedUnlimitedUnlimited£22.50
12 months
VodafoneUnlimitedUnlimitedUnlimited£23.00
24 months
VodafoneUnlimitedUnlimited200GB£23.00
24 months
EEUnlimitedUnlimited125GB£23.00
24 months
EEUnlimitedUnlimited25GB£23.00
12 months
VodafoneUnlimitedUnlimited6GB£23.00
12 months
O2UnlimitedUnlimited5GB£23.00
1 month
ThreeUnlimitedUnlimitedUnlimited£24.00
1 month
ThreeUnlimitedUnlimitedUnlimited£24.00
12 months
EEUnlimitedUnlimited150GB£24.00
6 months half price
24 months
ThreeUnlimitedUnlimited30GB£24.00
1 month
VodafoneUnlimitedUnlimited1GB£24.00
1 month
giffgaffUnlimitedUnlimitedAlways-On£25.00
1 month
Lebara MobileUnlimitedUnlimitedUnlimited£25.00
1 month
Honest MobileUnlimitedUnlimitedUnlimited£25.00
1 month
ASDA MobileUnlimitedUnlimitedUnlimited£25.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£25.00
12 months
Tesco MobileUnlimitedUnlimitedUnlimited£25.00
24 months
O2UnlimitedUnlimited150GB£25.00
12 months
EEUnlimitedUnlimited125GB£25.00
12 months
ASDA MobileUnlimitedUnlimited100GB£25.00
1 month
IQ MobileUnlimitedUnlimited100GB£25.00
3 months
EEUnlimitedUnlimited5GB£25.00
1 month
O2UnlimitedUnlimited20GB£26.00
1 month
EEUnlimitedUnlimited5GB£26.00
24 months
Lebara MobileUnlimitedUnlimitedUnlimited£27.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£27.00
24 months
ThreeUnlimitedUnlimitedUnlimited£28.00
1 month
EEUnlimitedUnlimitedUnlimited£28.00
6 months half price
24 months
O2UnlimitedUnlimitedUnlimited£28.00
24 months
O2UnlimitedUnlimited250GB£28.00
12 months
EEUnlimitedUnlimited25GB£28.00
1 month
VodafoneUnlimitedUnlimited5GB£28.00
1 month
EEUnlimitedUnlimited5GB£28.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£29.00
12 months
EEUnlimitedUnlimited25GB£29.00
24 months
Lebara MobileUnlimitedUnlimitedUnlimited£30.00
1 month
Tesco MobileUnlimitedUnlimitedUnlimited£30.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£30.00
12 months
EEUnlimitedUnlimitedUnlimited£30.00
12 months
Virgin MobileUnlimitedUnlimitedUnlimited£30.00
1 month
O2UnlimitedUnlimitedUnlimited£30.00
24 months
VodafoneUnlimitedUnlimitedUnlimited£30.00
24 months
VodafoneUnlimitedUnlimited250GB£30.00
24 months
EEUnlimitedUnlimited125GB£30.00
1 month
Sky MobileUnlimitedUnlimited60GB£30.00
12 months
O2UnlimitedUnlimited50GB£30.00
1 month
EEUnlimitedUnlimitedUnlimited£31.00
24 months
EEUnlimitedUnlimited125GB£31.00
24 months
EEUnlimitedUnlimited25GB£31.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£32.00
24 months
EEUnlimitedUnlimited150GB£32.00
6 months half price
24 months
EEUnlimitedUnlimitedUnlimited£33.00
12 months
O2UnlimitedUnlimitedUnlimited£33.00
12 months
EEUnlimitedUnlimited125GB£33.00
12 months
VodafoneUnlimitedUnlimited20GB£33.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£34.00
12 months
VOXIUnlimitedUnlimitedUnlimited£35.00
1 month
giffgaffUnlimitedUnlimitedUnlimited£35.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£35.00
12 months
EEUnlimitedUnlimitedUnlimited£35.00
1 month
O2UnlimitedUnlimitedUnlimited£35.00
12 months
O2UnlimitedUnlimitedUnlimited£36.00
1 month
EEUnlimitedUnlimitedUnlimited£36.00
6 months half price
24 months
VodafoneUnlimitedUnlimitedUnlimited£37.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£38.00
12 months
EEUnlimitedUnlimitedUnlimited£38.00
1 month
EEUnlimitedUnlimitedUnlimited£38.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£39.00
24 months
VodafoneUnlimitedUnlimitedUnlimited£41.00
1 month
EEUnlimitedUnlimitedUnlimited£43.00
24 months
EEUnlimitedUnlimitedUnlimited£45.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£47.00
1 month

Scroll through the full list of price plans to see the currently available deals that match your criteria. If you’re unsure how much data you want on your plan, see our guide to mobile download limits.

SIM Only Deal Providers

At present, there are over 20 different UK mobile networks offering SIM-only plans. The following table shows a list of major providers, and any additional benefits you’ll get when joining their service.

Mobile Network Plans From Coverage Provider Key Features
ASDA Mobile £4/month Vodafone
  • No contract & no credit check on all plans
EE £15/month EE
  • Inclusive Smart Benefits on EE Smart
  • 6 months free Apple Music
  • 6 months free BritBox
giffgaff £6/month O2
  • No contract & no credit check on all plans
Honest Mobile £12.15/month Three
  • No contract & no credit check plans available
  • Get your phone’s carbon footprint removed twice over
  • Loyalty discount so your plan reduces every month
iD Mobile £6/month Three
IQ Mobile £7/month EE
Lebara Mobile £4.50/month Vodafone
  • No contract & no credit check on all plans
Lycamobile £1/month O2
  • Low-cost international calls
O2 £12/month O2
  • Access to O2 Priority app & offers
  • 6 months free Disney+ or Amazon Prime Video
Plusnet Mobile £8/month EE
  • 2GB extra data with Plusnet Broadband
Sky Mobile £6/month O2
  • Unlimited streaming on Sky TV apps
SMARTY £5/month Three
  • No contract & no credit check on all plans
Superdrug Mobile £10/month Three
  • No contract & no credit check on all plans
  • Get extra Superdrug Health & Beautycard points
Talkmobile £4.95/month Vodafone
Tesco Mobile £7.50/month O2
Three £5/month Three
  • Access to Three+ app & offers
Virgin Mobile £5.95/month O2
Vodafone £6/month Vodafone
  • Access to VeryMe Rewards app
  • Plans available with no contract
VOXI £10/month Vodafone
  • Endless social media from £10
  • Endless video streaming from £15
  • No contract & no credit check on all plans

Useful Resources

Switching to a SIM-only deal? The following resources will help you to transfer your phone number, to figure out how much data you need each month, and more.

Transfer Your Phone Number

It's easy to keep your phone number when you change networks. Find out how.

How Much Data Do I Need?

The average user consumes around 3GB data per month, but this can vary substantially.

3G, 4G & 5G Download Speeds

Find out how download speeds compare, and what speeds you actually need.

5G Coverage Checker

5G coverage is now available in 383 towns and cities. Check 5G coverage in your area.

You can also read our in-depth mobile network reviews for more information about specific SIM-only deal providers.

Your Comments 153 so far

We'd love to hear your thoughts and any questions you may have. So far, we've received 153 comments from readers. You can add your own comment here.

  • Hi Ken,

    Please help. Is there any sim contract in the world that does not include any data? I need a mobile phone set up with absolutely no possibility of internet access. So ideally would be a large old fashion sim (not micro sim) for an old style Nokia phone, with only calls and texts. Thanks.

  • Miss S M Maltby said:

    Hi Ken
    Some months back I purchased a brand new SIM free Samsung Galaxy A20e with a view to switching from my present Samsung Galaxy J3 model – (purchased from EE and presently use on a pay-as-u-go basis) – believing my J3 SIM card would fit the A20e model – wrong!
    So now I’m thinking of arranging a SIM only contract with another provider but wonder whether I have to purchase a mobile ‘phone from them before going forward?

    • Hi there,
      Thanks for your comment. No, there’s no need to buy a mobile phone from the other provider. You can simply order a SIM-only deal (like one of those listed above) and that SIM card can slot inside your SIM-free Galaxy A20e.
      Hope this helps!
      Ken

  • Hi Ken,

    Is it possible to use a sim only deal which inludes minutes and texts in a dongle rather than a data only sim without restrictions?
    The difference in cost can be quite an amount of pounds

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