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Three 40GB for £8 Value plan with EU roaming: offer guide

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See everything you get with our exclusive 40GB for £8 Value plan on Three and order via our hidden offer links direct with the network. Last updated: 14th October 2025.

What’s in our exclusive Three Value deal?

Far better value than the main Value plans at Three.co.uk

 (4.5/5, deal rating - full network review here)
Screenshot of the deal in Three's checkout

Hidden offer for SIM Sherpa readers!Get yours here

at three.co.uk
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Three have shared this hidden SIM only offer with us to pass onto our readers. You won’t find it listed on the main part of three.co.uk. But if you click through, you will buy direct from Three in the usual way:

Our exclusive deal offers much better value than its equivalents on their main website. At the time of writing, the closest you can get on a 12-month contract is 25GB for £21 a month. So less data, higher cost.

And there’s nothing been taken out of the deal to make it cheap. You get full speed 4G/5G, WiFi calling, personal hotspot (tethering), eSIM if you want it, and access to Three’s reward scheme Three+.

Useful link: Get the deal here

It’s a Value plan so includes EU roaming

A man and woman enjoying themselves in a pool

Use your plan in 49 European countriesSee latest country list

at three.co.uk
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The best bit about this deal is that it includes EU roaming, unlike the bulk of Three’s SIM only deals – known as Lite plans. Those don’t include any roaming (see our Lite vs Value guide).

This deal gives you 12GB of data per month to use in the EU. And you can use your unlimited minutes and texts there too. Even local numbers are included, which is handy for calling your hotel or making bookings.

With O2 the only main network to keep EU roaming as a benefit on all their SIM only plans, our 40GB for £8 deal gets you the benefit – without having to shell out big network prices.

You can also claim a free subscription to Paramount+ streaming service with the deal. Three will pay for 6 months of it for you. But it’s worth knowing that after that, the cost of the service will be added to your bill.

Useful link: Order the exclusive SIM only plan here

Three’s network has changed beyond recognition

UK's fastest 5G network wording on a pink background

Every independent tester says itCheck 5G near you

at three.co.uk
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If you’ve ever held back from joining Three because of worries about them being the UK’s fourth network, it’s worth giving them another hearing. Their coverage has improved massively (check them in your area here).

And according to independent network testers Opensignal, you’ll have bragging rights to the fastest 5G in the country (typical downloads 208 Mbps, double EE!). Their 4G is no slouch either.

Three are also in the process of combining their mobile network with Vodafone's, as the two companies have merged. It means coverage and capacity is getting better daily, as each area gets added.

If there are downsides, we’d say Three’s customer service could be improved, there are still some rural areas where the network’s lacking. But overall, we think the deal is excellent value.

Useful link: See full offer details

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