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Unlimited data on Pay As You Go provides the ultimate flexibility, as you’re not tied into a contract and nor are you limited in how much data you can use.
So this can be a desirable plan type, and these plans don’t even have to cost the earth, as a number of affordable networks offer this.
In fact, you can get unlimited data SIM on Pay As You Go from quite a few different networks, including Three, Vodafone, iD and GiffGaff.
Best unlimited data SIM Pay As You Go deals
We've handpicked the best unlimited Pay As You Go SIM plans available today. They are all Pay As You Go bundles without a credit check and you'll be able to enjoy unlimited data for 30 days.
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Unlimited data Unlimited mins & texts |
£20 |
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Unlimited data * Unlimited mins & texts * Speeds restricted after 80GB usage |
£25 |
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Unlimited data Unlimited mins & texts |
£31.50 |
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Unlimited data Unlimited mins & texts |
£40 |
We'd also recommend considering a 30-day rolling SIM plan with no contract or credit check. They can prove significantly cheaper than a Pay As You Go plan and the only real difference is that they renew automatically if not cancelled.
| These bundles automatically renew at the end of the period, but have no contract or credit check. | ||
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Unlimited data Unlimited mins & texts |
£15 a month |
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Unlimited data Unlimited mins & texts 100 International mins |
£25 a month |
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Unlimited data * Unlimited mins & texts * Max speeds 150Mbps |
£24 a month |
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Unlimited data Unlimited mins & texts |
£35 a month |
Which networks offer unlimited data on Pay As You Go?
Three, Vodafone, Giffgaff, iD Mobile, and Lyca Mobile all offer Pay As You Go bundles with unlimited data. These are true Pay As You Go plans with no credit check, but after that we've also decided to take a look at the networks that offer similar bundles on 30-day rolling plans that aren’t strictly classed as Pay As You Go.
Three
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Lasts for 30 days Unlimited data Unlimited mins Unlimited texts |
£31.50 a month |
Three offers a range of packs on Pay As You Go, with one coming with unlimited data. This costs £31.50 at the time of writing, and also includes unlimited minutes and texts.
Like most Pay As You Go packs it lasts 30 days and doesn’t tie you into a contract. It also comes with 5G data, and perks such as inclusive roaming in over 70 destinations, and access to the Three+ app, which is packed full of offers and discounts from other brands.
Vodafone
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Lasts for 30 days Unlimited data Unlimited mins Unlimited texts |
£40 a month |
Vodafone’s unlimited data Pay As You Go bundle costs £40, lasts 30 days, and also includes unlimited minutes and texts.
It’s 5G-ready and while it doesn’t include roaming, you can purchase a Europe Extra or Around the World Extra add-on for a low cost to enable roaming. There’s no contract, and you also get access to Vodafone’s VeryMe Rewards app, which has treats, giveaways, and prize draws.
Giffgaff
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Unlimited data* Unlimited mins Unlimited texts * Speeds restricted after 80GB usage |
£25 a month |
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Unlimited data Unlimited mins Unlimited texts * only available if set to recur each month |
£35 a month |
Giffgaff offers a few different unlimited data bundles, but only one of them fully fits our definition of Pay As You Go.
That’s its ‘80GB Always On’ bundle, which costs £25 for 30 days, and also gives you unlimited minutes and texts. It’s unusual though in that while it offers 5G speeds, you only get that for the first 80GB, after which it will drop to a mere 384kbps between 8am and midnight.
There’s also another £25 bundle which gives you 100GB of ‘Always On’ data and a £35 bundle which comes with truly unlimited data, but these are only accessible if you set them to recur each month – which Pay As You Go doesn’t typically require. However, there’s still no contract, so you can cancel them at any time.
All three bundles also come with EU roaming – up to a 5GB fair usage limit.
iD Mobile
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Lasts for 30 days Unlimited data Unlimited mins Unlimited texts |
£20 a month |
iD Mobile’s unlimited data Pay As You Go bundle is a bargain at just £20 for a 30-day duration. As with other networks you also get unlimited minutes and texts here, and you can roam across the EU and beyond at no extra cost (up to a 30GB fair usage limit).
Lyca Mobile
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Lasts for 30 days Unlimited data Unlimited mins Unlimited texts + 100 International mins |
£15 a month |
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Lasts for 30 days Unlimited data Unlimited mins Unlimited texts + Unlimited International mins |
£30 a month |
Lyca Mobile offers a 30-day unlimited data bundle for £30 and another for £25 (but temporarily reduced to £15 for the first three months at the time of writing).
In both cases you get 5G, unlimited minutes and unlimited texts. EU and India roaming is included too, with a 35GB fair use limit. You also get international minutes included, with 100 such minutes to dozens of destinations on the £25 plan, and unlimited international minutes on the £30 one.
Networks offering unlimited data on 30-day bundles that automatically renew
O2, EE, 1pMobile, Asda Mobile, Honest Mobile, Lebara, Smarty, Spusu, and VOXI all also offer unlimited data bundles with no contract.
These networks don’t advertise their unlimited data bundles as being Pay As You Go, instead listing them as SIM-only, but as these plans only last 30 days, don’t tie you in, and in many cases don’t require a credit check, they’re very similar and are worth considering. At the time of writing the only ones that do require a credit check are O2 and EE.
The only thing to watch out for is that they will typically automatically renew each month, whereas true Pay As You Go bundles won’t unless you opt into them doing.
O2
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Unlimited data Unlimited mins Unlimited texts |
£36 a month |
O2 offers a 30-day SIM Only plan with unlimited 5G data, unlimited minutes, and unlimited texts. O2 is also rare among major networks in offering inclusive roaming as standard (up to a 25GB fair usage limit). That said, this plan isn’t one of the cheapest options, at £36 per month, and its SIM Only plans require a credit check.
EE
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Unlimited data Unlimited mins Unlimited texts * Max speeds 100Mbps |
£35 a month |
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Unlimited data Unlimited mins Unlimited texts |
£39 a month |
On EE, you can get a few different 30-day SIM Only plans with unlimited data. The cheapest costs £30 at the time of writing, and tops out at just 10Mbps speeds. That’s not very fast, but for £35 you can get 100Mbps speeds. Or for £39 you can get 100Mbps and the addition of EU roaming.
All three plans also come with unlimited minutes and texts, and note that its SIM Only plans will credit check you.
1pMobile
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Unlimited data Unlimited mins Unlimited texts |
£25 a month |
1pMobile sells a rolling 30-day unlimited data plan that also comes with unlimited minutes and texts, as well as 5G, and EU roaming (up to a fair use limit of 14GB).
Asda Mobile
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Unlimited data * Unlimited mins Unlimited texts * Max speeds 2Mbps |
£20 a month |
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Unlimited data * Unlimited mins Unlimited texts * Max speeds 10Mbps |
£22 a month |
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Unlimited data Unlimited mins Unlimited texts * Max speeds 150Mbps |
£24 a month |
Asda Mobile offers a trio of unlimited data bundles, each lasting 30 days and with no contract. Where they differ is in their pricing and their speed.
The cheapest costs just £20 but limits you to 2Mbps speeds, then there’s a £22 one which lets you access speeds of up to 10Mbps, and a £24 one which is capped at 150Mbps. Only the last of those offers 5G speeds. All of those bundles also come with unlimited minutes and texts, as well as free roaming in the EU up to 5GB.
Honest Mobile
Honest Mobile offers a 30-day unlimited data plan which also includes unlimited minutes and texts. It comes with 5G, and also includes free EU roaming.
It costs £25 per month but over time a ‘loyalty discount’ will see the price drop, with it eventually falling to £17.50.
Lebara
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Unlimited data Unlimited mins Unlimited texts 100 International mins |
£25 a month |
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Unlimited data Unlimited mins Unlimited texts Unlimited International mins |
£30 a month |
Lebara offers two unlimited data bundles, each lasting 30 days, each supporting 5G, and each including unlimited minutes and texts.
One also gives you 100 international minutes to over 50 countries, and costs £25, while the other ups that to unlimited international minutes to over 50 countries (plus 1,000 minutes to India) for £30.
Both plans also let you roam in the EU, China, and India (with a 30GB fair use limit).
Smarty
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Unlimited data Unlimited mins Unlimited texts |
£15 a month |
Smarty has good value plans, offering unlimited data on a 30-day, no contract deal for £20 (temporarily reduced to £15 at the time of writing). There’s also 5G data, EU roaming (up to 12GB), and unlimited minutes and texts included.
Spusu
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Unlimited data Unlimited mins Unlimited texts |
£29.90 a month |
Spusu sells an unlimited data 30-day plan that additionally has 5G, unlimited minutes, and unlimited texts.
EU roaming is also included, and the plan additionally comes with 500 international minutes, which you can use to call abroad from the UK. It currently costs £29.90 per month (down from a regular price of £34.90).
VOXI
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Unlimited data Unlimited mins Unlimited texts |
£35 a month |
With VOXI you can get a 30-day plan with unlimited data for £35 per month. As you’d expect there’s also unlimited minutes and texts, and the plan includes 5G. Roaming isn’t included but passes to add this are available cheaply – especially for EU roaming.
