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 Pay As You Go SIM card.

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

£5 SIM Only Deals

Get a SIM-only deal for £5/month or less, with calls, texts & data.

Available for under £5/month

30 Day SIM Only Deals

Get a flexible SIM-only deal that you can change or cancel any time.

Available from 99p/month

5G SIM Only Deals

Get a SIM-only deal for £5/month or less, with calls, texts & data.

Available from £2.90/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 £5/month

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 1pMobile, IQ Mobile, Lyca Mobile & Talk Home.

Available from £4.25/month

SIM Cards with O2 Coverage

Including giffgaff, Sky, Tesco Mobile & Virgin.

Available from £6/month

SIM Cards with Three Coverage

Including Honest Mobile, iD Mobile & SMARTY.

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 333 of 333 price plans that match your criteria

NetworkMinutesTextsDataMonthly Cost
(may rise during contract)
spusuUnlimitedUnlimited1GB£2.90
1 month
LycamobileUnlimitedUnlimited5GB£4.25
3 months free
24 months
LycamobileUnlimitedUnlimited5GB£4.50
1 months free
12 months
Lebara MobileUnlimitedUnlimited5GB£4.50
12 months
TalkmobileUnlimitedUnlimited5GB£4.95
1 month
ASDA MobileUnlimitedUnlimited5GB£4.99
12 months
ASDA MobileUnlimitedUnlimited5GB£4.99
24 months
Lebara MobileUnlimitedUnlimited5GB£5.00
1 month
Talk HomeUnlimitedUnlimited4GB£5.00
£0.01 for 3 months
1 month
ThreeUnlimitedUnlimited3GB£5.00
24 months
ThreeUnlimitedUnlimited3GB£5.00
12 months
ASDA MobileUnlimitedUnlimited3GB£5.00
1 month
O2500Unlimited1GB£5.00
12 months
ASDA MobileUnlimitedUnlimited10GB£5.50
12 months
ASDA MobileUnlimitedUnlimited10GB£5.50
24 months
TalkmobileUnlimitedUnlimited8GB£5.95
1 month
ASDA MobileUnlimitedUnlimited25GB£5.99
12 months
ASDA MobileUnlimitedUnlimited25GB£5.99
24 months
ThreeUnlimitedUnlimited12GB£6.00
12 months
iD MobileUnlimitedUnlimited10GB£6.00
1 month
iD MobileUnlimitedUnlimited8GB£6.00
24 months
iD MobileUnlimitedUnlimited6GB£6.00
12 months
SmartyUnlimitedUnlimited5GB£6.00
1 month
Sky MobileUnlimitedUnlimited3GB£6.00
12 months
giffgaffUnlimitedUnlimited2GB£6.00
1 month
giffgaffUnlimitedUnlimited1GB£6.00
1 month
spusuUnlimitedUnlimited20GB£6.90
1 month
TalkmobileUnlimitedUnlimited15GB£6.95
1 month
iD MobileUnlimitedUnlimited30GB£7.00
1 month
iD MobileUnlimitedUnlimited25GB£7.00
24 months
iD MobileUnlimitedUnlimited20GB£7.00
12 months
Lebara MobileUnlimitedUnlimited10GB£7.00
6 months half price
1 month
ThreeUnlimitedUnlimited8GB£7.00
24 months
ThreeUnlimitedUnlimited8GB£7.00
12 months
SmartyUnlimitedUnlimited8GB£7.00
1 month
VodafoneUnlimitedUnlimited6GB£7.00
12 months
ASDA MobileUnlimitedUnlimited5GB£7.00
1 month
Tesco MobileUnlimitedUnlimited2GB£7.50
24 months
TalkmobileUnlimitedUnlimited50GB£7.95
1 month
TalkmobileUnlimitedUnlimited50GB£7.95
3 months half price
12 months
LycamobileUnlimitedUnlimited88GB£8.00
1 month
iD MobileUnlimitedUnlimited50GB£8.00
1 month
iD MobileUnlimitedUnlimited50GB£8.00
12 months
SmartyUnlimitedUnlimited50GB£8.00
1 month
ThreeUnlimitedUnlimited40GB£8.00
12 months
VodafoneUnlimitedUnlimited40GB£8.00
12 months
iD MobileUnlimitedUnlimited40GB£8.00
24 months
O2UnlimitedUnlimited40GB£8.00
12 months
ThreeUnlimitedUnlimited30GB£8.00
12 months
ThreeUnlimitedUnlimited30GB£8.00
24 months
iD MobileUnlimitedUnlimited30GB£8.00
12 months
ThreeUnlimitedUnlimited25GB£8.00
24 months
ThreeUnlimitedUnlimited25GB£8.00
12 months
LycamobileUnlimitedUnlimited20GB£8.00
3 months free
24 months
Lebara MobileUnlimitedUnlimited20GB£8.00
6 months half price
1 month
spusuUnlimitedUnlimited16GB£8.00
£3 for 3 months
1 month
ASDA MobileUnlimitedUnlimited10GB£8.00
1 month
Talk HomeUnlimitedUnlimited8GB£8.00
£0.99 for 3 months
1 month
giffgaffUnlimitedUnlimited6GB£8.00
18 months
Sky MobileUnlimitedUnlimited5GB£8.00
12 months
giffgaffUnlimitedUnlimited5GB£8.00
1 month
ThreeUnlimitedUnlimited4GB£8.00
24 months
giffgaffUnlimitedUnlimited4GB£8.00
1 month
Tesco MobileUnlimitedUnlimited2GB£8.00
12 months
Lebara MobileUnlimitedUnlimited30GB£9.00
6 months half price
1 month
Lebara MobileUnlimitedUnlimited25GB£9.00
12 months
LycamobileUnlimitedUnlimited20GB£9.00
1 months free
12 months
ThreeUnlimitedUnlimited1GB£9.00
24 months
spusuUnlimitedUnlimited30GB£9.90
1 month
spusuUnlimitedUnlimited25GB£9.90
£12.90 for 3 months
1 month
TalkmobileUnlimitedUnlimited100GB£9.95
1 month
TalkmobileUnlimitedUnlimited100GB£9.95
£4.98 for 3 months
12 months
TalkmobileUnlimitedUnlimited80GB£9.95
1 month
O2UnlimitedUnlimited60GB£9.99
12 months
ASDA MobileUnlimitedUnlimited60GB£9.99
12 months
ASDA MobileUnlimitedUnlimited60GB£9.99
24 months
iD MobileUnlimitedUnlimited110GB£10.00
1 month
LycamobileUnlimitedUnlimited100GB£10.00
1 month
iD MobileUnlimitedUnlimited90GB£10.00
12 months
iD MobileUnlimitedUnlimited80GB£10.00
12 months
iD MobileUnlimitedUnlimited80GB£10.00
24 months
SmartyUnlimitedUnlimited80GB£10.00
1 month
ThreeUnlimitedUnlimited60GB£10.00
24 months
ThreeUnlimitedUnlimited60GB£10.00
12 months
VodafoneUnlimitedUnlimited60GB£10.00
12 months
Sky MobileUnlimitedUnlimited50GB£10.00
12 months
ThreeUnlimitedUnlimited30GB£10.00
12 months
ThreeUnlimitedUnlimited25GB£10.00
24 months
Sky MobileUnlimitedUnlimited25GB£10.00
12 months
giffgaffUnlimitedUnlimited25GB£10.00
18 months
Lebara MobileUnlimitedUnlimited25GB£10.00
1 month
LycamobileUnlimitedUnlimited25GB£10.00
£5 for 1 months
1 month
Talk HomeUnlimitedUnlimited20GB£10.00
£1.99 for 3 months
1 month
VOXIUnlimitedUnlimited20GB£10.00
1 month
giffgaffUnlimitedUnlimited20GB£10.00
1 month
giffgaffUnlimitedUnlimited15GB£10.00
1 month
ASDA MobileUnlimitedUnlimited15GB£10.00
1 month
Tesco MobileUnlimitedUnlimited12GB£10.00
24 months
ThreeUnlimitedUnlimited3GB£10.00
24 months
ThreeUnlimitedUnlimited3GB£10.00
12 months
VodafoneUnlimitedUnlimited3GB£10.00
24 months
spusuUnlimitedUnlimited40GB£10.90
1 month
Tesco MobileUnlimitedUnlimited12GB£11.00
12 months
ThreeUnlimitedUnlimited4GB£11.00
24 months
ThreeUnlimitedUnlimited1GB£11.00
12 months
TalkmobileUnlimitedUnlimited150GB£11.95
1 month
TalkmobileUnlimitedUnlimited150GB£11.95
£5.97 for 3 months
12 months
iD MobileUnlimitedUnlimited175GB£12.00
24 months
iD MobileUnlimitedUnlimited150GB£12.00
12 months
ThreeUnlimitedUnlimited120GB£12.00
12 months
ThreeUnlimitedUnlimited120GB£12.00
24 months
SmartyUnlimitedUnlimited100GB£12.00
1 month
giffgaffUnlimitedUnlimited27GB£12.00
18 months
giffgaffUnlimitedUnlimited26GB£12.00
1 month
VOXIUnlimitedUnlimited25GB£12.00
1 month
giffgaffUnlimitedUnlimited25GB£12.00
1 month
ThreeUnlimitedUnlimited12GB£12.00
24 months
ThreeUnlimitedUnlimited8GB£12.00
12 months
ThreeUnlimitedUnlimited8GB£12.00
24 months
Honest MobileUnlimitedUnlimited4GB£12.15
12 months
Tesco MobileUnlimitedUnlimited30GB£12.50
24 months
LycamobileUnlimitedUnlimited30GB£12.50
3 months free
24 months
spusuUnlimitedUnlimited50GB£12.90
1 month
ThreeUnlimitedUnlimited30GB£13.00
24 months
ThreeUnlimitedUnlimited25GB£13.00
24 months
ThreeUnlimitedUnlimited25GB£13.00
12 months
ThreeUnlimitedUnlimited25GB£13.00
24 months
ThreeUnlimitedUnlimited4GB£13.00
12 months
Lebara MobileUnlimitedUnlimited40GB£13.50
12 months
LycamobileUnlimitedUnlimited30GB£13.50
1 months free
12 months
Honest MobileUnlimitedUnlimited4GB£13.50
1 month
TalkmobileUnlimitedUnlimited250GB£13.95
1 month
iD MobileUnlimitedUnlimited250GB£14.00
1 month
iD MobileUnlimitedUnlimited250GB£14.00
24 months
iD MobileUnlimitedUnlimited200GB£14.00
12 months
ThreeUnlimitedUnlimited12GB£14.00
12 months
Sky MobileUnlimitedUnlimited10GB£14.00
12 months
ThreeUnlimitedUnlimited4GB£14.00
24 months
ThreeUnlimitedUnlimited1GB£14.00
24 months
iD MobileUnlimitedUnlimitedUnlimited£15.00
1 month
iD MobileUnlimitedUnlimited300GB£15.00
24 months
iD MobileUnlimitedUnlimited250GB£15.00
12 months
SmartyUnlimitedUnlimited150GB£15.00
1 month
ThreeUnlimitedUnlimited120GB£15.00
24 months
VOXIUnlimitedUnlimited105GB£15.00
1 month
Sky MobileUnlimitedUnlimited100GB£15.00
12 months
LycamobileUnlimitedUnlimited100GB£15.00
3 months free
24 months
ThreeUnlimitedUnlimited60GB£15.00
24 months
ThreeUnlimitedUnlimited60GB£15.00
12 months
Tesco MobileUnlimitedUnlimited60GB£15.00
24 months
Talk HomeUnlimitedUnlimited50GB£15.00
£6.50 for 3 months
1 month
LycamobileUnlimitedUnlimited50GB£15.00
£7.50 for 1 months
1 month
giffgaffUnlimitedUnlimited40GB£15.00
18 months
Lebara MobileUnlimitedUnlimited40GB£15.00
1 month
giffgaffUnlimitedUnlimited35GB£15.00
1 month
Tesco MobileUnlimitedUnlimited30GB£15.00
12 months
giffgaffUnlimitedUnlimited30GB£15.00
1 month
ASDA MobileUnlimitedUnlimited25GB£15.00
1 month
O2UnlimitedUnlimited3GB£15.00
24 months
ThreeUnlimitedUnlimited3GB£15.00
12 months
ThreeUnlimitedUnlimited3GB£15.00
24 months
Honest MobileUnlimitedUnlimited10GB£15.75
12 months
ASDA MobileUnlimitedUnlimitedUnlimited£15.99
12 months
ASDA MobileUnlimitedUnlimitedUnlimited£15.99
24 months
TalkmobileUnlimitedUnlimitedUnlimited£16.00
1 month
iD MobileUnlimitedUnlimitedUnlimited£16.00
24 months
SmartyUnlimitedUnlimitedUnlimited£16.00
1 month
ThreeUnlimitedUnlimited25GB£16.00
24 months
ThreeUnlimitedUnlimited25GB£16.00
12 months
VodafoneUnlimitedUnlimited25GB£16.00
24 months
O2UnlimitedUnlimited20GB£16.00
24 months
VodafoneUnlimitedUnlimited3GB£16.00
12 months
ThreeUnlimitedUnlimited1GB£16.00
12 months
iD MobileUnlimitedUnlimitedUnlimited£17.00
12 months
SmartyUnlimitedUnlimited200GB£17.00
1 month
ThreeUnlimitedUnlimited120GB£17.00
12 months
ThreeUnlimitedUnlimited120GB£17.00
24 months
ThreeUnlimitedUnlimited12GB£17.00
24 months
ThreeUnlimitedUnlimited8GB£17.00
24 months
ThreeUnlimitedUnlimited8GB£17.00
12 months
O2UnlimitedUnlimited6GB£17.00
24 months
Tesco MobileUnlimitedUnlimited100GB£17.50
24 months
Tesco MobileUnlimitedUnlimited60GB£17.50
12 months
Honest MobileUnlimitedUnlimited10GB£17.50
1 month
O2UnlimitedUnlimited12GB£17.99
24 months
LycamobileUnlimitedUnlimitedUnlimited£18.00
3 months free
24 months
ThreeUnlimitedUnlimited120GB£18.00
12 months
ThreeUnlimitedUnlimited120GB£18.00
24 months
LycamobileUnlimitedUnlimited100GB£18.00
1 months free
12 months
Lebara MobileUnlimitedUnlimited50GB£18.00
12 months
ThreeUnlimitedUnlimited30GB£18.00
24 months
ThreeUnlimitedUnlimited25GB£18.00
12 months
ThreeUnlimitedUnlimited25GB£18.00
24 months
VodafoneUnlimitedUnlimited8GB£18.00
24 months
ThreeUnlimitedUnlimited4GB£18.00
12 months
O2UnlimitedUnlimited1GB£18.00
12 months
ThreeUnlimitedUnlimited12GB£19.00
12 months
VodafoneUnlimitedUnlimited8GB£19.00
12 months
ThreeUnlimitedUnlimited4GB£19.00
1 month
ThreeUnlimitedUnlimited1GB£19.00
24 months
ThreeUnlimitedUnlimitedUnlimited£20.00
24 months
ThreeUnlimitedUnlimited250GB£20.00
24 months
giffgaffUnlimitedUnlimited120GB£20.00
18 months
Tesco MobileUnlimitedUnlimited100GB£20.00
12 months
Talk HomeUnlimitedUnlimited100GB£20.00
£8.50 for 3 months
1 month
VOXIUnlimitedUnlimited100GB£20.00
1 month
giffgaffUnlimitedUnlimited100GB£20.00
1 month
LycamobileUnlimitedUnlimited100GB£20.00
£10 for 1 months
1 month
giffgaffUnlimitedUnlimited80GB£20.00
1 month
ThreeUnlimitedUnlimited60GB£20.00
12 months
ThreeUnlimitedUnlimited60GB£20.00
24 months
Lebara MobileUnlimitedUnlimited50GB£20.00
1 month
ASDA MobileUnlimitedUnlimited50GB£20.00
1 month
O2UnlimitedUnlimited6GB£20.00
12 months
O21,000Unlimited1GB£20.00
1 month
O2UnlimitedUnlimited30GB£20.99
24 months
ThreeUnlimitedUnlimited120GB£21.00
24 months
VodafoneUnlimitedUnlimited50GB£21.00
24 months
ThreeUnlimitedUnlimited25GB£21.00
12 months
ThreeUnlimitedUnlimited1GB£21.00
12 months
O2UnlimitedUnlimited12GB£21.99
12 months
ThreeUnlimitedUnlimitedUnlimited£22.00
24 months
LycamobileUnlimitedUnlimitedUnlimited£22.00
1 months free
12 months
ThreeUnlimitedUnlimited250GB£22.00
12 months
ThreeUnlimitedUnlimited120GB£22.00
12 months
ThreeUnlimitedUnlimited120GB£22.00
24 months
O2UnlimitedUnlimited100GB£22.00
24 months
O2UnlimitedUnlimited20GB£22.00
12 months
ThreeUnlimitedUnlimited12GB£22.00
1 month
ThreeUnlimitedUnlimited12GB£22.00
24 months
Honest MobileUnlimitedUnlimitedUnlimited£22.50
12 months
Lebara MobileUnlimitedUnlimitedUnlimited£22.50
12 months
ThreeUnlimitedUnlimitedUnlimited£23.00
24 months
ThreeUnlimitedUnlimitedUnlimited£23.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£23.00
24 months
ThreeUnlimitedUnlimited120GB£23.00
12 months
O2UnlimitedUnlimited5GB£23.00
1 month
ThreeUnlimitedUnlimited4GB£23.00
12 months
O2UnlimitedUnlimited30GB£23.99
12 months
ASDA MobileUnlimitedUnlimitedUnlimited£24.00
1 month
O2UnlimitedUnlimited250GB£24.00
24 months
O2UnlimitedUnlimited50GB£24.00
12 months
ThreeUnlimitedUnlimited25GB£24.00
1 month
VodafoneUnlimitedUnlimited20GB£24.00
12 months
ThreeUnlimitedUnlimited12GB£24.00
12 months
Tesco MobileUnlimitedUnlimitedUnlimited£25.00
24 months
LycamobileUnlimitedUnlimitedUnlimited£25.00
3 months free
24 months
giffgaffUnlimitedUnlimitedUnlimited£25.00
18 months
Honest MobileUnlimitedUnlimitedUnlimited£25.00
1 month
Lebara MobileUnlimitedUnlimitedUnlimited£25.00
1 month
LycamobileUnlimitedUnlimitedUnlimited£25.00
£12.50 for 1 months
1 month
ThreeUnlimitedUnlimited250GB£25.00
24 months
VodafoneUnlimitedUnlimited150GB£25.00
24 months
giffgaffUnlimitedUnlimited100GB£25.00
1 month
ASDA MobileUnlimitedUnlimited100GB£25.00
1 month
giffgaffUnlimitedUnlimited80GB£25.00
1 month
ThreeUnlimitedUnlimitedUnlimited£26.00
24 months
ThreeUnlimitedUnlimited25GB£26.00
12 months
O2UnlimitedUnlimited20GB£26.00
1 month
VodafoneUnlimitedUnlimited8GB£26.00
12 months
VodafoneUnlimitedUnlimited8GB£26.00
24 months
VodafoneUnlimitedUnlimited3GB£26.00
1 month
ThreeUnlimitedUnlimitedUnlimited£27.00
24 months
VodafoneUnlimitedUnlimitedUnlimited£27.00
24 months
LycamobileUnlimitedUnlimitedUnlimited£27.00
1 months free
12 months
Lebara MobileUnlimitedUnlimitedUnlimited£27.00
12 months
ThreeUnlimitedUnlimited250GB£27.00
12 months
VodafoneUnlimitedUnlimited8GB£27.00
12 months
ThreeUnlimitedUnlimitedUnlimited£28.00
12 months
ThreeUnlimitedUnlimitedUnlimited£28.00
12 months
VodafoneUnlimitedUnlimited200GB£28.00
24 months
ThreeUnlimitedUnlimited120GB£28.00
12 months
VodafoneUnlimitedUnlimited50GB£28.00
24 months
VodafoneUnlimitedUnlimited50GB£29.00
24 months
VodafoneUnlimitedUnlimited8GB£29.00
12 months
VodafoneUnlimitedUnlimited8GB£29.00
1 month
spusuUnlimitedUnlimitedUnlimited£29.90
1 month
VodafoneUnlimitedUnlimitedUnlimited£30.00
24 months
Tesco MobileUnlimitedUnlimitedUnlimited£30.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£30.00
24 months
VOXIUnlimitedUnlimitedUnlimited£30.00
1 month
Lebara MobileUnlimitedUnlimitedUnlimited£30.00
1 month
ThreeUnlimitedUnlimited250GB£30.00
24 months
O2UnlimitedUnlimited50GB£30.00
1 month
ThreeUnlimitedUnlimitedUnlimited£31.00
1 month
O2UnlimitedUnlimitedUnlimited£31.00
24 months
VodafoneUnlimitedUnlimited50GB£31.00
24 months
VodafoneUnlimitedUnlimited25GB£31.00
12 months
ThreeUnlimitedUnlimitedUnlimited£32.00
24 months
VodafoneUnlimitedUnlimitedUnlimited£32.00
12 months
ThreeUnlimitedUnlimited250GB£32.00
12 months
VodafoneUnlimitedUnlimited150GB£32.00
24 months
VodafoneUnlimitedUnlimited20GB£32.00
12 months
O2UnlimitedUnlimited30GB£32.49
24 months
O2UnlimitedUnlimitedUnlimited£32.99
24 months
ThreeUnlimitedUnlimitedUnlimited£33.00
12 months
O2UnlimitedUnlimitedUnlimited£33.00
12 months
ThreeUnlimitedUnlimitedUnlimited£33.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£33.00
12 months
VodafoneUnlimitedUnlimited150GB£33.00
24 months
VodafoneUnlimitedUnlimited25GB£34.00
12 months
VodafoneUnlimitedUnlimited20GB£34.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£35.00
12 months
Sky MobileUnlimitedUnlimitedUnlimited£35.00
12 months
Talk HomeUnlimitedUnlimitedUnlimited£35.00
£13.50 for 3 months
1 month
giffgaffUnlimitedUnlimitedUnlimited£35.00
1 month
VodafoneUnlimitedUnlimited150GB£35.00
24 months
giffgaffUnlimitedUnlimited150GB£35.00
1 month
O2UnlimitedUnlimited150GB£35.49
24 months
O2UnlimitedUnlimited30GB£35.49
12 months
O2UnlimitedUnlimitedUnlimited£36.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£36.00
24 months
VodafoneUnlimitedUnlimited200GB£36.00
24 months
ThreeUnlimitedUnlimitedUnlimited£38.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£38.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£38.00
24 months
O2UnlimitedUnlimited150GB£38.49
12 months
VodafoneUnlimitedUnlimitedUnlimited£39.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£40.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£42.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£42.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£42.00
12 months
VodafoneUnlimitedUnlimited25GB£42.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£43.00
24 months
O2UnlimitedUnlimitedUnlimited£44.49
24 months
VodafoneUnlimitedUnlimitedUnlimited£45.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£45.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£45.00
12 months
VodafoneUnlimitedUnlimitedUnlimited£46.00
24 months
O2UnlimitedUnlimitedUnlimited£46.49
12 months
VodafoneUnlimitedUnlimitedUnlimited£48.00
1 month
VodafoneUnlimitedUnlimitedUnlimited£51.00
24 months
VodafoneUnlimitedUnlimitedUnlimited£54.00
24 months

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 EE
  • Inclusive Smart Benefits on EE Smart
  • 6 months free Apple Music
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
Lyca Mobile £5/month EE
  • No contract & no credit check on all plans
  • Low-cost international calls
O2 £5/month O2
  • Access to O2 Priority app & offers
  • 6 months free Disney+ or Amazon Prime Video
Sky Mobile £6/month O2
  • Unlimited streaming on Sky TV apps
SMARTY £6/month Three
  • No contract & no credit check on all plans
spusu £2.90/month EE
Talk Home £5/month EE
  • No contract & no credit check on all plans
Talkmobile £4.95/month Vodafone
Tesco Mobile £7.50/month O2
Three £5/month Three
  • Access to Three+ app & offers
Virgin Mobile £6/month O2
Vodafone £7/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.

Mobile Phone Credit Checks

Find out how mobile phone credit checks work and discover ‘no credit check’ deals.

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

Your Comments 154 so far

We'd love to hear your thoughts and any questions you may have. So far, we've received 154 comments from readers. You can add your own comment here.

  • tim said:

    I know this is an old thread but does anyone know of any payg or 1 monthly providers that allow you to pay the bill early? Smarty lets me top up in a shop and they use that cash for the bill, any others that can do that? Thank you.

  • Melissa said:

    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?

    • Ken replied:

      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

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