You can get unlimited data on Pay As You Go from £16/month. Compare unlimited data plans with no contract & no credit check.

In the UK, most mobile networks now offer an unlimited data plan, allowing you to download as much as you like. However, the choice of mobile networks is a little more restrictive if you’re looking for unlimited data on Pay As You Go with no contract and no credit check.

At present, there are nine UK mobile networks offering unlimited data on Pay As You Go. Prices currently start from £16 per month for unlimited data at 5G speeds on Pay As You Go.

In this article, we’ll compare the unlimited data plans that are available on Pay As You Go. We’ll start with an overview of available providers, before looking at each individual mobile network in more detail.

Unlimited Data Pay As You Go: From £16/month
Exclusive Deal: £12.50/month for first 3 months on Lebara using KEN3 code
(with 5G coverage from Vodafone, £25/month after 3 months)
Alternative Deal: £16/month on SMARTY
(with 5G coverage from Three & no credit check)
With O2 Coverage:
With Three Coverage:
With Vodafone Coverage:

Unlimited Data on Pay As You Go

Compare Pay As You Go Unlimited Plans

In the UK, there are currently nine mobile networks that offer an unlimited data plan on Pay As You Go.

The following table shows a side-by-side comparison of the unlimited data plans available on each Pay As You Go network:

NetworkMinutesTextsDataMonthly
Cost
SmartyUnlimitedUnlimitedUnlimited£16.00
Superdrug MobileUnlimitedUnlimitedUnlimited£20.00
ASDA MobileUnlimitedUnlimitedUnlimited
2Mbps max
£20.00
iD Mobile1,000UnlimitedUnlimited£20.00
Lebara MobileUnlimitedUnlimitedUnlimited£25.00
giffgaffUnlimitedUnlimitedAlways-On£25.00
LycamobileUnlimitedUnlimitedUnlimited£25.00
Lebara MobileUnlimitedUnlimitedUnlimited£25.00
VOXIUnlimitedUnlimitedUnlimited£30.00
ThreeUnlimitedUnlimitedUnlimited£35.00
VodafoneUnlimitedUnlimitedUnlimited£40.00

All of these plans are available on a one-month rolling basis with no contract and no credit check required. You’ll simply pay for one month’s usage at a time and you can cancel it whenever you like.

Coverage, Speed & Limitations

When choosing an unlimited data plan on Pay As You Go, it’s important to consider the coverage you’ll get on it. You should also keep a close eye on any fair usage limits or restrictions on the plan.

The following table shows a summary of this information for each UK network:

Mobile Network Coverage Provider Speed Key Limits & Restrictions
ASDA Mobile Vodafone 5G
  • Speed restrictions apply (2Mbps, 10Mbps or 150Mbps)
giffgaff O2 5G
  • 650GB monthly fair usage
  • 12 devices tethering & hotspot
  • 80GB speed reduction (Always-On)
Lebara Mobile Vodafone 5G
Lycamobile O2 5G
  • No tethering & hotspot
SMARTY Three 5G
Superdrug Mobile Three 4G
  • £20 back in points to spend at Superdrug
Three Three 5G
Vodafone Vodafone 5G
VOXI Vodafone 5G

For further information about the unlimited data plans on each Pay As You Go network, read on to learn more about each individual provider.

Unfortunately, it isn’t currently possible to get unlimited data on a Pay As You Go SIM card with coverage from EE. For more information, see our guide to networks using EE coverage.

Recommended Provider

At present, Lebara Mobile and SMARTY are our recommended providers if you’re looking for unlimited data on Pay As You Go.

Lebara Mobile

  • Unlimited data with no contract. Just pay for one month at a time & cancel whenever you like.
  • Get unlimited data for £12.50/month for 3 months. Then it’s £25/month.
  • 5G coverage & 99% 4G coverage from Vodafone. Find out more.

If you’re looking for unlimited data without a contract or credit check, Lebara Mobile offers unlimited data for an introductory price of just £12.50/month. You’ll benefit from the half price offer for 3 months. After that, it will go up to £25/month if you continue using the SIM card.

To get this exclusive 3 months half price offer, you’ll need to order your SIM card through this link, entering KEN3 as your voucher code at checkout. This offer ends on the 30th June 2022.

On Lebara Mobile’s unlimited data plan, you’ll get 4G & 5G coverage from Vodafone. You’ll also get unlimited UK minutes, 100 international minutes and unlimited UK texts included with your plan.

Order Lebara Unlimited Data SIM Card →

SMARTY

  • Unlimited data with no contract. Just pay for one month at a time & cancel whenever you like.
  • Get unlimited data for £16/month. Also includes unlimited minutes & unlimited texts.
  • 5G coverage & 99% 4G coverage from Three. Check SMARTY coverage here.

If you’re looking for unlimited data without a contract or credit check, SMARTY currently offers the UK’s best value long-term deal.

If you order your unlimited data SIM card through this special link, you’ll get unlimited data for only £16 per month. This includes 5G at no extra cost, along with unlimited minutes & unlimited texts.

There are no fair usage limits or speed restrictions on SMARTY’s unlimited data plan and you can cancel it whenever you like.

Order SMARTY Unlimited Data SIM Card →

As an alternative, you can also consider Superdrug’s £20 unlimited data SIM card. This comes with £20 worth of Superdrug Health and Beautycard points, essentially making your ‘first month free’. It’ll give you 4G coverage from Three.

Pay As You Go Unlimited Data: By Mobile Network

In the following section, we’ll look at the unlimited data plans on each Pay As You Go mobile network in more detail.

ASDA Mobile

On ASDA Mobile’s Pay As You Go service, there are currently three unlimited data plans you’re able to choose from. These start from £20/month and include 4G & 5G coverage on the Vodafone network.

  • For £20 per month, you’ll get unlimited data with download speeds of 2Mbps (equivalent to a basic 3G connection). This is enough for most daily usage like browsing the web and using messaging applications. However, HD video streaming will not work on this plan and downloads may also take a very long time.
  • For £25 per month, you’ll get unlimited data with download speeds of up to 10Mbps (equivalent to a basic 4G connection). This will allow you to stream online video in HD quality.
  • For £30 per month, you’ll get unlimited data with download speeds of up to 150Mbps. If you want to benefit from the faster download speeds available on 5G, you should choose this plan.

The following table shows ASDA Mobile’s unlimited data plans on Pay As You Go:

NetworkMinutesTextsDataMonthly
Cost
ASDA MobileUnlimitedUnlimitedUnlimited
2Mbps max
£20.00
ASDA MobileUnlimitedUnlimitedUnlimited
10Mbps max
£25.00
ASDA MobileUnlimitedUnlimitedUnlimited
150Mbps max
£30.00

If you’re using an ASDA Mobile SIM card abroad, it’s possible to use up to 25GB of data abroad at no extra cost each month in 36 European destinations.

Price Fair Use Speed Limits Network

£20/month

Personal use only

2Mbps (£20 plan)
10Mbps (£25 plan)
150Mbps (£30 plan)

5G coverage
(powered by Vodafone)

For more information, see our ASDA Mobile unlimited data review.

giffgaff

On giffgaff, you can get an unlimited data SIM card with 4G & 5G coverage from O2. There are two unlimited data plans you’re currently able to choose from:

  • The £25 Always On goodybag gives you unlimited data with uncapped download speeds on the first 80GB per month. After that, download speeds will be restricted to 384kbps (around 0.4Mbps) between 8am and midnight each day.
  • The £35 golden goodybag gives you unlimited data, with full access to 5G speeds. There are no speed reductions on the £35 golden goodybag but there’s a fair usage limit of 650GB per month. In addition, giffgaff says you shouldn’t tether your phone to more than 12 devices at the same time.

The following table shows giffgaff’s unlimited data plans, both of which are available with no contract and no credit check:

TariffMinutesTextsDataMonthly
Cost
£25 GoodybagUnlimitedUnlimitedAlways-On£25.00
£35 Golden GoodybagUnlimitedUnlimitedUnlimited£35.00

If you’re travelling abroad to another European country, a 20GB data roaming limit applies on your giffgaff unlimited data plan. Beyond this, you’ll be surcharged at a rate of 0.36p/MB for further data usage abroad.

Price Fair Use Tethering Network

£25/month

650GB/month

12 devices

5G coverage
(powered by O2)
The £25 Always-On goodybag has a speed reduction to 384kbps (0.4Mbps) after 80GB per month
20GB monthly data roaming limit applies in Europe

For more information, see our guide to unlimited data on giffgaff.

Lebara Mobile

In the UK, Lebara Mobile currently offers an unlimited data SIM card for £12.50/month for the first 3 months (then £25/month). To get this offer, you’ll need to enter the KEN3 voucher code at checkout.

On this plan, you’ll get 4G & 5G coverage from Vodafone. You’ll also get unlimited UK minutes, unlimited UK texts and 100 international minutes to 42 countries.

For an extra £5/month, you can upgrade this to a plan with unlimited international minutes.

NetworkMinutesTextsDataMonthly
Cost
Lebara MobileUnlimited
+100 intl.
UnlimitedUnlimited£12.50
for 3 months, then £25/month
Lebara MobileUnlimited
+unltd intl.
UnlimitedUnlimited£15.00
for 3 months, then £30/month

If you’re travelling abroad, you can use up to 15.7GB data per month in Europe at no extra cost. You can also use up to 10GB of data per month in India.

Price Fair Use Tethering Network

£25/month

Subject to general T&C

No restrictions

5G coverage
(powered by Vodafone)
Roaming data limit of 15.5GB per month in Europe and 10GB per month in India

For more information, see our guide to Lebara Mobile’s SIM-only deals.

Lycamobile

Lycamobile is a specialist provider of international calling. You can buy their Go Unlimited bundle which costs £25 for 30 days of usage. This gives you unlimited UK minutes, unlimited UK texts and unlimited UK data, with 99% 4G coverage from O2’s network.

Lycamobile also offers the Go Unlimited Plus bundle. This costs £30 for 30 days of usage. It also includes unlimited international minutes for calling 41 countries.

NetworkMinutesTextsDataMonthly
Cost
Lycamobile
Go Unlimited
Unlimited
+100 intl.
UnlimitedUnlimited£25.00
Lycamobile
Go Unlimited Plus
Unlimited
+unltd intl.
UnlimitedUnlimited£30.00

On Lycamobile, the use of tethering and personal hotspot is not permitted.

Price Fair Use Tethering Network

£25/month

Subject to general T&C

Not permitted

5G coverage
(powered by O2)

For more information, you can read our Lycamobile review.

SMARTY

In the UK, SMARTY Mobile is a low-cost sub-brand of Three. At present, they offer unlimited data without a contract for only £16 per month on a Pay As You Go basis. The SIM card gives you 4G & 5G coverage from Three, along with unlimited UK minutes and unlimited UK texts.

According to SMARTY, tethering and personal hotspot usage are included in the plan and there are no speed restrictions for using too much data. You can also use the unlimited data SIM card in other devices like your tablet, dongle or mobile broadband router.

NetworkMinutesTextsDataMonthly
Cost
SmartyUnlimitedUnlimitedUnlimited£16.00

On SMARTY, a 12GB per month fair usage limit applies when you’re travelling abroad in Europe. Beyond this, a surcharge will be applied.

Price Fair Use Tethering Network

£16/month

No fair use limit

No restrictions

5G coverage
(powered by Three)
12GB per month data roaming limit applies in European countries.

For more information, see our SMARTY unlimited data review.

Superdrug Mobile

If you’re looking for a good introductory deal, you can consider Superdrug Mobile’s £20 unlimited data SIM card. This gives you unlimited minutes, unlimited texts and unlimited data with 4G coverage from the Three network.

There are two main benefits to choosing Superdrug Mobile:

  • You’ll get £20 back in Superdrug Health and Beautycard points. This is available when you sign up for your plan online and it essentially makes your first month “free”. Once you’ve activated your SIM, you can spend the £20 of points on your next visit to a Superdrug store, or online on the Superdrug website.
  • You’ll earn double Health and Beautycard points on all your shopping at Superdrug (equivalent to an extra 1% back on all of your shopping at Superdrug).
NetworkMinutesTextsDataMonthly
Cost
Superdrug MobileUnlimitedUnlimitedUnlimited£20.00

Unfortunately, Superdrug doesn’t yet offer access to 5G coverage on their plan. However, this is available if you choose SMARTY’s £16 unlimited data plan.

The following table shows the key things to know about Superdrug’s unlimited data plan:

Price Fair Use Tethering Network

£20/month
(with £20 back in points)

No commercial usage

No restrictions

4G coverage
(powered by Three)

For more information, see our Superdrug Mobile review.

Three

You can get an unlimited data SIM card on Three Pay As You Go for £35/month. This gives you access to Three’s 5G network, along with unlimited UK minutes and unlimited UK texts.

NetworkMinutesTextsDataMonthly
Cost
ThreeUnlimitedUnlimitedUnlimited£35.00

Unfortunately, Three charges a lot more for unlimited data on Pay As You Go, compared to unlimited data on their Pay Monthly SIM cards. For instance, you can get unlimited data for just £16/month if you’re willing to sign up on a contract with Three. Alternatively, SMARTY offers unlimited data for £16 with no contract & with 5G coverage from Three.

Price Fair Use Tethering Network

£35/month

No commercial usage

No restrictions

5G coverage
12GB per month data roaming limit applies in Go Roam countries (both inside and outside Europe).

For more information, see our guide to unlimited data on Three.

Vodafone

On Vodafone Pay As You Go, it’s possible to get an unlimited data SIM card for £40/month. This is available with no contract and no need for a credit check. You’ll also get access to Vodafone’s 5G network at no extra cost on this plan.

This following table shows Vodafone’s Pay As You Go unlimited data plan:

NetworkMinutesTextsDataMonthly
Cost
VodafoneUnlimitedUnlimitedUnlimited£40.00

Because of the incredibly high cost for unlimited data on Vodafone Pay As You Go, we wouldn’t normally recommend this plan for most users. Instead, you should consider Lebara Mobile's £25 unlimited data plan instead. This will also give you unlimited data with access to Vodafone’s 4G and 5G network.

Alternatively, you can consider a Vodafone unlimited data plan on a Pay Monthly contract (available from £23/month).

Price Fair Use Tethering Network

£40/month

Personal use only

No restrictions

5G coverage

For more information, see our guide to Vodafone’s Pay As You Go bundles and Vodafone’s unlimited data plans.

VOXI

VOXI is a low-cost sub-brand of Vodafone, currently offering unlimited 5G data for £30/month with no contract.

VOXI’s unlimited data plan will give you access to Vodafone’s 5G network. This offers an average download speed of 150-200Mbps on 5G, with 5G coverage currently available in 100 UK towns and cities.

NetworkMinutesTextsDataMonthly
Cost
VOXIUnlimitedUnlimitedUnlimited£30.00

When using your mobile phone abroad in another European country, there’s a fair usage limit of 25GB per month on this plan.

Price Fair Use Tethering Network

£30/month

Personal use only

No restrictions

5G coverage
(powered by Vodafone)
25GB monthly fair usage limit in 51 European destinations.

For more information, you can read our VOXI review. Alternatively, if you’re looking for a lower-cost alternative, VOXI also offers a selection of plans with endless social media and endless video.

More Information

For more information about a specific unlimited data deal, please see the details on your mobile network’s website. In addition, you may find it useful to read our overview of unlimited data plans in the UK and the best Pay As You Go SIM cards.

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