Three SIM only deals for April: how they compare on price
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We've taken each of Three's best SIM only plans this month and compared them on price with other UK networks. Here's what we found. SIM Sherpa is your trusty guide. Last updated: 22nd April 2024.
Three's best SIM only deals
The best overall Three SIM only deal this month
just
£12
a month
✔ Unlimited mins and 120GB data See full deal
at three.co.uk
(opens in new window)
We think Three's best value option on SIM only this April is their £12 a month plan below, which comes with 120GB data, plus unlimited minutes and texts on a 12‑month deal:
Unlimited minutes + Unlimited texts + £18 £12 a month (12‑month contract)
See full deal
You can beat it for price if you don't need your SIM to be with a provider using the Three network. But if that's a must, then it is the lowest-cost SIM with 120GB data or more. See the networks with cheaper plans here:
Unlimited minutes + Unlimited texts +
£50 Currys gift card (automatic, no need to claim)
See full deal
Three's 60GB for £10 plan is a good option too
just
£10
a month
✔ Unlimited mins and 60GB data See full deal
at three.co.uk
(opens in new window)
For less monthly data, the next best SIM only plan on Three in our opinion is their 12‑month one below. For £10 a month, you get 60GB data, plus unlimited minutes and texts:
Unlimited minutes + Unlimited texts +
See full deal
While this is a good enough deal to make it into the best of Three's SIMs, you can beat it for price (even if you definitely want a provider that uses the Three network). Here's which other networks can beat it:
Unlimited minutes + Unlimited texts +
See full deal
Unlimited minutes + Unlimited texts +
£30 cashback (automatic, no need to claim)
See full deal
Their £8 for 30GB plan is a decent deal for April
just
£8
a month
✔ Unlimited mins and 30GB data See full deal
at three.co.uk
(opens in new window)
If you need less data, another good deal on Three at the moment is their £8 SIM only plan here, which includes 30GB data instead, plus unlimited minutes and texts:
Unlimited minutes + Unlimited texts + £16 £8 a month (12‑month contract)
See full deal
It's a good enough deal to get into Three's best SIMs but you can actually get a lower price for a similar plan elsewhere, even if you definitely want it to use the Three network. See where you can get it for less here:
Unlimited minutes + Unlimited texts +
£25 Currys gift card (automatic, no need to claim)
See full deal
Unlimited minutes + Unlimited texts +
See full deal
Unlimited minutes + Unlimited texts + 16GB 50GB data (5G) = £8 a month (1‑month plan, no contract)
See full deal
🛈 No annual price rises
They're also offering 8GB for £7 on SIM only currently
just
£7
a month
✔ Unlimited mins and 8GB data See full deal
at three.co.uk
(opens in new window)
For a smaller amount of data, our next best pick of Three SIM only plans is their 12‑month £7 deal below, which gets you 8GB data and unlimited minutes and texts:
Unlimited minutes + Unlimited texts +
See full deal
In comparison to the rest of Three's current SIM only plans, it's one of the best. But it is beatable on price, even if you're set on joining a provider that uses the Three network. Here are the networks offering it cheaper:
Unlimited minutes + Unlimited texts + £8 £4 a month for 6 months, then £8 (1‑month plan, no contract)
See full deal
Unlimited minutes + Unlimited texts +
See full deal
Unlimited minutes + Unlimited texts + 8GB 15GB data (5G) = £7 a month (1‑month plan, no contract)
See full deal
🛈 No annual price rises
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How Three's deals compare with other networks
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More about Three's SIM only plans
How Three compare on SIM only prices and benefits
We said in our full review of the Three network that our favourite thing about them is their fast 4G and 5G speeds as well as their encouraging 5G coverage.
On SIM only you can take a 1-month, 12-month or 24-month contract. Typically the longer the contract, the lower your monthly cost. But it’s always worth shopping around to find their best current deal.
Three’s “Lite” plans are much cheaper than the sorts of deals you’d get on other main networks. Three also have some premium plans with extra benefits baked in. You can take these on 12 or 24-month contracts.
All Three plans give you access to their handy Three+ rewards app. And you get EU and worldwide roaming passes included on their premium Value and Complete plans, as well as these other benefits.
Useful link: Read our full Three review
Other good things to know about Three’s SIM only plans
Three will send your SIM card within 3-5 working days. You’ll receive a package with every size of SIM in it, so you can fit your SIM into every phone. Three also offer eSIMs (see more info here).
You can return your SIM within 14 days to get a full refund if you’re not satisfied. Returning things you bought in a Three store is a bit more tricky, so read the full terms and conditions here to learn more.
To join on any Three SIM only contract you’ll have to pass a credit check. If you were rejected for a contract on Three then you can either take a monthly PAYG bundle or top up with credit and pay as you go.
If you want to keep your number when switching to Three from another network, you can do so by requesting a PAC from your old provider and giving it to Three at any time. Here’s their guide on how to do this.
Useful link: Compare all Three SIMs