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 £16/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 £6/month

SIM Cards with O2 Coverage

Including giffgaff, Lycamobile, Sky & Tesco Mobile.

Available from £6/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, Virgin & 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 256 of 256 price plans that match your criteria

NetworkMinutesTextsDataMonthly
Cost
Lebara Mobile1,0001,0002GB£4.50
12 months
TalkmobileUnlimitedUnlimited3GB£4.95
1 month
TalkmobileUnlimitedUnlimited2GB£4.95
1 month
ASDA MobileUnlimitedUnlimited6GB£5.00
1 month
SmartyUnlimitedUnlimited3GB£5.00
1 month
Lebara Mobile1,0001,0002GB£5.00
1 month
Three200Unlimited2GB£5.00
12 months
ThreeUnlimitedUnlimited1GB£5.00
12 months
iD MobileUnlimitedUnlimited1GB£5.00
1 month
TalkmobileUnlimitedUnlimited6GB£5.95
1 month
SmartyUnlimitedUnlimited5GB£6.00
1 month
iD MobileUnlimitedUnlimited5GB£6.00
1 month
Plusnet MobileUnlimitedUnlimited5GB£6.00
1 month
Plusnet MobileUnlimitedUnlimited5GB£6.00
£20 reward card
12 months
Virgin MobileUnlimitedUnlimited5GB£6.00
12 months
ThreeUnlimitedUnlimited4GB£6.00
12 months
VodafoneUnlimitedUnlimited4GB£6.00
12 months
iD MobileUnlimitedUnlimited4GB£6.00
12 months
iD MobileUnlimitedUnlimited3GB£6.00
1 month
Sky MobileUnlimitedUnlimited2GB£6.00
12 months
giffgaffUnlimitedUnlimited1GB£6.00
1 month
ThreeUnlimitedUnlimited1GB£6.00
24 months
TalkmobileUnlimitedUnlimited7GB£6.50
1 month
TalkmobileUnlimitedUnlimited12GB£6.95
1 month
ASDA MobileUnlimitedUnlimited10GB£7.00
1 month
iD MobileUnlimitedUnlimited10GB£7.00
1 month
SmartyUnlimitedUnlimited8GB£7.00
1 month
ThreeUnlimitedUnlimited8GB£7.00
12 months
iD MobileUnlimitedUnlimited8GB£7.00
1 month
iD MobileUnlimitedUnlimited6GB£7.00
12 months
Three200Unlimited2GB£7.00
12 months
ThreeUnlimitedUnlimited1GB£7.00
12 months
Tesco MobileUnlimitedUnlimited2GB£7.50
12 months
Tesco MobileUnlimitedUnlimited2GB£7.50
24 months
VodafoneUnlimitedUnlimited15GB£8.00
12 months
iD MobileUnlimitedUnlimited15GB£8.00
1 month
Plusnet MobileUnlimitedUnlimited15GB£8.00
1 month
Plusnet MobileUnlimitedUnlimited15GB£8.00
£25 reward card
12 months
TalkmobileUnlimitedUnlimited15GB£8.00
1 month
Virgin MobileUnlimitedUnlimited15GB£8.00
24 months
ThreeUnlimitedUnlimited12GB£8.00
12 months
SmartyUnlimitedUnlimited12GB£8.00
1 month
iD MobileUnlimitedUnlimited12GB£8.00
24 months
iD MobileUnlimitedUnlimited10GB£8.00
12 months
Virgin MobileUnlimitedUnlimited10GB£8.00
12 months
Sky MobileUnlimitedUnlimited6GB£8.00
12 months
Virgin MobileUnlimitedUnlimited4GB£8.00
24 months
giffgaffUnlimitedUnlimited3GB£8.00
1 month
Virgin MobileUnlimitedUnlimited2GB£8.00
12 months
TalkmobileUnlimitedUnlimited20GB£8.95
1 month
Lebara MobileUnlimitedUnlimited15GB£9.00
12 months
iD MobileUnlimitedUnlimited10GB£9.00
12 months
Lebara MobileUnlimitedUnlimited6GB£9.00
12 months
ThreeUnlimitedUnlimited4GB£9.00
24 months
Virgin MobileUnlimitedUnlimited3GB£9.00
12 months
SmartyUnlimitedUnlimited40GB£10.00
1 month
VodafoneUnlimitedUnlimited30GB£10.00
12 months
ThreeUnlimitedUnlimited30GB£10.00
12 months
iD MobileUnlimitedUnlimited30GB£10.00
24 months
iD MobileUnlimitedUnlimited30GB£10.00
1 month
Plusnet MobileUnlimitedUnlimited30GB£10.00
1 month
Plusnet MobileUnlimitedUnlimited30GB£10.00
£30 reward card
12 months
TalkmobileUnlimitedUnlimited30GB£10.00
1 month
iD MobileUnlimitedUnlimited24GB£10.00
1 month
ASDA MobileUnlimitedUnlimited20GB£10.00
1 month
iD MobileUnlimitedUnlimited20GB£10.00
12 months
Virgin MobileUnlimitedUnlimited20GB£10.00
12 months
VOXIUnlimitedUnlimited15GB£10.00
1 month
Lebara MobileUnlimitedUnlimited15GB£10.00
1 month
giffgaffUnlimitedUnlimited15GB£10.00
1 month
Virgin MobileUnlimitedUnlimited15GB£10.00
24 months
giffgaffUnlimitedUnlimited12GB£10.00
1 month
Tesco MobileUnlimitedUnlimited12GB£10.00
24 months
ThreeUnlimitedUnlimited12GB£10.00
24 months
Virgin MobileUnlimitedUnlimited12GB£10.00
12 months
EEUnlimitedUnlimited10GB£10.00
12 months
Sky MobileUnlimitedUnlimited10GB£10.00
12 months
ThreeUnlimitedUnlimited8GB£10.00
24 months
Sky MobileUnlimitedUnlimited8GB£10.00
12 months
Lebara MobileUnlimitedUnlimited6GB£10.00
1 month
Superdrug MobileUnlimitedUnlimited5GB£10.00
1 month
O2UnlimitedUnlimited5GB£10.00
24 months
ThreeUnlimitedUnlimited4GB£10.00
12 months
IQ MobileUnlimitedUnlimited3GB£10.00
1 month
Virgin MobileUnlimitedUnlimited36GB£11.00
24 months
Tesco MobileUnlimitedUnlimited30GB£11.00
24 months
Tesco MobileUnlimitedUnlimited12GB£11.00
12 months
ThreeUnlimitedUnlimited8GB£11.00
12 months
VodafoneUnlimitedUnlimited1GB£11.00
24 months
TalkmobileUnlimitedUnlimited100GB£11.95
1 month
TalkmobileUnlimitedUnlimited50GB£11.95
1 month
ThreeUnlimitedUnlimited100GB£12.00
12 months
iD MobileUnlimitedUnlimited50GB£12.00
24 months
iD MobileUnlimitedUnlimited50GB£12.00
12 months
iD MobileUnlimitedUnlimited36GB£12.00
12 months
Virgin MobileUnlimitedUnlimited32GB£12.00
24 months
ThreeUnlimitedUnlimited30GB£12.00
12 months
iD MobileUnlimitedUnlimited30GB£12.00
1 month
giffgaffUnlimitedUnlimited20GB£12.00
1 month
O2UnlimitedUnlimited10GB£12.00
24 months
Virgin MobileUnlimitedUnlimited6GB£12.00
12 months
O2UnlimitedUnlimited1GB£12.00
12 months
VodafoneUnlimitedUnlimited1GB£12.00
12 months
Honest MobileUnlimitedUnlimited4GB£12.15
12 months
iD MobileUnlimitedUnlimited50GB£13.00
12 months
Virgin MobileUnlimitedUnlimited50GB£13.00
24 months
Virgin MobileUnlimitedUnlimited36GB£13.00
12 months
ThreeUnlimitedUnlimited12GB£13.00
12 months
BT MobileUnlimitedUnlimited5GB£13.00
24 months
BT MobileUnlimitedUnlimited4GB£13.00
12 months
Lebara MobileUnlimitedUnlimited15GB£13.50
12 months
Honest MobileUnlimitedUnlimited4GB£13.50
1 month
iD MobileUnlimitedUnlimited100GB£14.00
24 months
iD MobileUnlimitedUnlimited50GB£14.00
1 month
ThreeUnlimitedUnlimited30GB£14.00
24 months
Virgin MobileUnlimitedUnlimited8GB£14.00
12 months
EEUnlimitedUnlimited1GB£14.00
24 months
TalkmobileUnlimitedUnlimited100GB£15.00
1 month
SmartyUnlimitedUnlimited60GB£15.00
1 month
Tesco MobileUnlimitedUnlimited60GB£15.00
24 months
Tesco MobileUnlimitedUnlimited60GB£15.00
12 months
ASDA MobileUnlimitedUnlimited36GB£15.00
1 month
VodafoneUnlimitedUnlimited35GB£15.00
12 months
VOXIUnlimitedUnlimited30GB£15.00
1 month
giffgaffUnlimitedUnlimited30GB£15.00
1 month
ThreeUnlimitedUnlimited30GB£15.00
12 months
Tesco MobileUnlimitedUnlimited30GB£15.00
12 months
giffgaffUnlimitedUnlimited25GB£15.00
1 month
EEUnlimitedUnlimited25GB£15.00
12 months
O2UnlimitedUnlimited20GB£15.00
24 months
Lebara MobileUnlimitedUnlimited15GB£15.00
1 month
Superdrug MobileUnlimitedUnlimited15GB£15.00
1 month
Virgin MobileUnlimitedUnlimited10GB£15.00
12 months
IQ MobileUnlimitedUnlimited10GB£15.00
1 month
BT MobileUnlimitedUnlimited10GB£15.00
24 months
BT MobileUnlimitedUnlimited8GB£15.00
12 months
O2UnlimitedUnlimited5GB£15.00
12 months
VodafoneUnlimitedUnlimited5GB£15.00
24 months
O21,000Unlimited1GB£15.00
1 month
Honest MobileUnlimitedUnlimited10GB£15.75
12 months
SmartyUnlimitedUnlimitedUnlimited£16.00
1 month
ThreeUnlimitedUnlimitedUnlimited£16.00
12 months
iD MobileUnlimitedUnlimitedUnlimited£16.00
24 months
iD MobileUnlimitedUnlimitedUnlimited£16.00
12 months
ThreeUnlimitedUnlimited100GB£16.00
24 months
iD MobileUnlimitedUnlimited100GB£16.00
12 months
Virgin MobileUnlimitedUnlimited50GB£16.00
12 months
VodafoneUnlimitedUnlimited5GB£16.00
12 months
iD MobileUnlimitedUnlimited100GB£17.00
1 month
BT MobileUnlimitedUnlimited12GB£17.00
12 months
Tesco MobileUnlimitedUnlimited100GB£17.50
24 months
Honest MobileUnlimitedUnlimited10GB£17.50
1 month
iD MobileUnlimitedUnlimitedUnlimited£18.00
12 months
iD MobileUnlimitedUnlimitedUnlimited£18.00
1 month
O2UnlimitedUnlimited60GB£18.00
24 months
VodafoneUnlimitedUnlimited60GB£18.00
24 months
Virgin MobileUnlimitedUnlimited30GB£18.00
24 months
Superdrug MobileUnlimitedUnlimited20GB£18.00
1 month
Virgin MobileUnlimitedUnlimited20GB£18.00
12 months
O2UnlimitedUnlimited20GB£18.00
12 months
Lebara MobileUnlimitedUnlimited20GB£18.00
12 months
O2UnlimitedUnlimited3GB£18.00
1 month
VodafoneUnlimitedUnlimited2GB£18.00
24 months
ThreeUnlimitedUnlimited4GB£19.00
1 month
EEUnlimitedUnlimited3GB£19.00
12 months
VodafoneUnlimitedUnlimited2GB£19.00
12 months
Superdrug MobileUnlimitedUnlimitedUnlimited£20.00
1 month
ASDA MobileUnlimitedUnlimitedUnlimited£20.00
1 months half price
1 month
iD MobileUnlimitedUnlimitedUnlimited£20.00
1 month
EEUnlimitedUnlimited150GB£20.00
24 months
EEUnlimitedUnlimited150GB£20.00
24 months
O2UnlimitedUnlimited150GB£20.00
24 months
VodafoneUnlimitedUnlimited120GB£20.00
24 months
Virgin MobileUnlimitedUnlimited100GB£20.00
24 months
VodafoneUnlimitedUnlimited100GB£20.00
12 months
giffgaffUnlimitedUnlimited100GB£20.00
1 month
Tesco MobileUnlimitedUnlimited100GB£20.00
12 months
O2UnlimitedUnlimited100GB£20.00
12 months
EEUnlimitedUnlimited100GB£20.00
12 months
giffgaffUnlimitedUnlimited80GB£20.00
1 month
VOXIUnlimitedUnlimited60GB£20.00
1 month
ASDA MobileUnlimitedUnlimited60GB£20.00
1 month
Virgin MobileUnlimitedUnlimited40GB£20.00
12 months
BT MobileUnlimitedUnlimited40GB£20.00
24 months
IQ MobileUnlimitedUnlimited30GB£20.00
1 month
BT MobileUnlimitedUnlimited25GB£20.00
12 months
Lebara MobileUnlimitedUnlimited20GB£20.00
1 month
Sky MobileUnlimitedUnlimited20GB£20.00
12 months
ThreeUnlimitedUnlimitedUnlimited£21.00
12 months
ThreeUnlimitedUnlimitedUnlimited£21.00
6 months half price
24 months
VodafoneUnlimitedUnlimited20GB£21.00
12 months
O2UnlimitedUnlimited9GB£21.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£22.00
24 months
ThreeUnlimitedUnlimitedUnlimited£22.00
24 months
O2UnlimitedUnlimited250GB£22.00
24 months
ThreeUnlimitedUnlimited12GB£22.00
1 month
Honest MobileUnlimitedUnlimitedUnlimited£22.50
12 months
Lebara MobileUnlimitedUnlimitedUnlimited£22.50
12 months
EEUnlimitedUnlimited200GB£23.00
24 months
O2UnlimitedUnlimited15GB£23.00
1 month
ThreeUnlimitedUnlimitedUnlimited£24.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£24.00
12 months
ThreeUnlimitedUnlimitedUnlimited£24.00
12 months
O2UnlimitedUnlimited150GB£24.00
12 months
ThreeUnlimitedUnlimited30GB£24.00
1 month
VodafoneUnlimitedUnlimited25GB£24.00
24 months
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 months half price
1 month
Tesco MobileUnlimitedUnlimitedUnlimited£25.00
24 months
VodafoneUnlimitedUnlimitedUnlimited£25.00
24 months
Virgin MobileUnlimitedUnlimitedUnlimited£25.00
24 months
O2UnlimitedUnlimited500GB£25.00
24 months
EEUnlimitedUnlimited150GB£25.00
24 months
Virgin MobileUnlimitedUnlimited100GB£25.00
12 months
ASDA MobileUnlimitedUnlimited100GB£25.00
1 month
BT MobileUnlimitedUnlimited100GB£25.00
24 months
IQ MobileUnlimitedUnlimited100GB£25.00
12 months
Sky MobileUnlimitedUnlimited50GB£25.00
12 months
EEUnlimitedUnlimited40GB£25.00
12 months
BT MobileUnlimitedUnlimited40GB£25.00
12 months
O2UnlimitedUnlimited25GB£25.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£26.00
24 months
ThreeUnlimitedUnlimitedUnlimited£26.00
1 month
Lebara MobileUnlimitedUnlimitedUnlimited£27.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£28.00
12 months
ThreeUnlimitedUnlimitedUnlimited£28.00
1 month
Virgin MobileUnlimitedUnlimitedUnlimited£28.00
12 months
O2UnlimitedUnlimited250GB£28.00
12 months
EEUnlimitedUnlimited200GB£28.00
24 months
VodafoneUnlimitedUnlimited25GB£28.00
12 months
VodafoneUnlimitedUnlimited5GB£28.00
1 month
EEUnlimitedUnlimited100GB£29.00
12 months
Lebara MobileUnlimitedUnlimitedUnlimited£30.00
1 month
ASDA MobileUnlimitedUnlimitedUnlimited£30.00
1 months half price
1 month
Tesco MobileUnlimitedUnlimitedUnlimited£30.00
12 months
O2UnlimitedUnlimitedUnlimited£30.00
24 months
BT MobileUnlimitedUnlimited100GB£30.00
12 months
IQ MobileUnlimitedUnlimited100GB£30.00
1 month
O2UnlimitedUnlimited50GB£30.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£32.00
24 months
O2UnlimitedUnlimitedUnlimited£33.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£33.00
12 months
VodafoneUnlimitedUnlimited20GB£33.00
1 month
VOXIUnlimitedUnlimitedUnlimited£35.00
1 month
giffgaffUnlimitedUnlimitedUnlimited£35.00
1 month
EEUnlimitedUnlimitedUnlimited£35.00
24 months
VodafoneUnlimitedUnlimitedUnlimited£35.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£36.00
1 month
O2UnlimitedUnlimitedUnlimited£36.00
1 month
EEUnlimitedUnlimitedUnlimited£37.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£40.00
1 month
EEUnlimitedUnlimitedUnlimited£41.00
24 months
VodafoneUnlimitedUnlimitedUnlimited£45.00
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
BT Mobile £8/month EE
  • Inclusive BT Sport app on plans from £15
  • Double data with BT Halo Broadband
EE £10/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 £5/month Three
IQ Mobile £7/month EE
Lebara Mobile £4.50/month Vodafone
  • No contract & no credit check on all plans
Lycamobile £5/month O2
  • Low-cost international calls
O2 £10/month O2
  • Access to O2 Priority app & offers
  • 6 months free Disney+ or Amazon Prime Video
Plusnet Mobile £6/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 £6/month Vodafone
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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