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SIM only deals

On this page you'll find links to the best SIM only deals currently available in the UK. SIM Only deals are usually the best option for those people who are out of contract but want to wait a while before they upgrade, or for others who have bought a phone outright and want a cheap SIM deal to use with it. Luckily for you, SIM only deals are very competitive at the moment so there are a lot of great options as the networks compete on price. At the top of this page you'll see a price comparison chart where you can find the best deals, and underneath that you'll see some of the best SIM only deals that we recommend.

This month's best SIM only deal:

Vodafone | 12 month contract | 20GB data | Unlimited calls and texts | £14 per month
We've looked around and this looks like the best SIM only deal currently available in the UK. You'll need to be quick to get it though as it's due to expire on April 21. With this deal you get a bonkers 20GB data on Vodafone's 4G network, and unlimited calls and texts. The actual monthly fee will be £24 but you mitigate that by getting £120 cashback when you sign up for the deal, effectively reducing the monthly cost by £10. If we were looking to grab a data-tastic SIM only deal this month, this is the deal we'd go for.

Get this deal from Mobiles.co.uk: Micro SIM | Nano SIM

Choose the best SIM only deals for you:

The best SIM only deals are:

These are the deals we recommend most highly. We try to pick out a deal for everyone, whether you're after the cheapest possible option or the best balance between allowance and cost.

Vodafone | 12 month contract | 20GB data | Unlimited calls and texts | £14 per month
As we mentioned above, we've looked around and this looks like the best SIM only deal of the month. You'll need to be quick to get it though as it's due to expire on April 21. With this deal you get a bonkers 20GB data on Vodafone's 4G network, and unlimited calls and texts. The actual monthly fee will be £24 but you mitigate that by getting £120 cashback when you sign up for the deal, effectively reducing the monthly cost by £10. If we were looking to grab a data-tastic SIM only deal this month, this is the deal we'd go for.

Get this deal from Mobiles.co.uk: Micro SIM | Nano SIM

iD | 1 month contract | 4GB data | 500 minutes | 5000 texts | £10 per month
iD is the network owned by Dixons Carphone - the company behind Carphone Warehouse, Mobiles.co.uk and e2save.com - not to mention Currys and PC World. It piggybacks on the Three 3G/4G network and is usually a pretty cheap way of getting up and running. This deal currently has double data for 12 months, so you're paying for 2GB and getting 4GB for just £10 a month. And because it's a one month contract, you can cancel at any time.

View this deal: at iD/Carphone Warehouse

iD | 1 month contract | 250MB data | 250 minutes | 5000 texts | £4 per month
This is the cheapest SIM only deal currently available in the UK. If you just need to keep a phone up and running for occasional use, this is a good option. Clearly 250MB is not much data at all so you'd be advised to either keep mobile data switched off or else be careful what apps are updating in the background.

View this deal: at iD/Carphone Warehouse

Alternative option: You could also pay £1 more to get the same deal with 1GB data which seems like much better value to us!

Three's SIM only deals with unlimited data
Three is still the only network that offers all-you-can-eat / unlimited data as an option. That's not as impressive as you might think because other networks offer large allowances too. But if you want the absolute security of knowing you can never be charged if you go over your data allowance, these deals are brilliant and they offer good value too - particularly if you're a heavy data user. The all-you-can-eat data plans come with in a few different guises - with the price changing according to how many minutes you require. Here are the options for you to take a look at:

Three | Unlimited data | Unlimited texts | 200 minutes
12 month contract for £20 per month | 1 month contract for £23 per month

Three | Unlimited data | Unlimited texts | 600 minutes
12 month contract for £25 per month | 1 month contract for £28 per month

Three | Unlimited data | Unlimited texts | Unlimited minutes
12 month contract for £30 per month | 1 month contract for £33 per month

EE | 12 month contract | 16GB data | Unlimited calls and texts | £19.99 per month - £96 cashback!
This is the best SIM only deal currently available on EE. You get 16GB data and unlimited everything else for just £19.99 per month which is excellent value. What's more, by purchasing this through Mobile Phones Direct you can claim £96 cashback, which makes the price more like £11.99 per month.

View this deal: get it from Mobile Phones Direct

SIM only deals: introducing the candidates

Mobiles.co.uk

Often the place with the best bargains

It's always worth checking out Mobiles.co.uk - its aggressive price cuts are often unmatched by anyone else.

View: SIM only deals at Mobiles.co.uk

giffgaff

Probably the cheapest SIM-only deals in the UK

GiffGaff is very hard to beat on price – if you want to grab a cheap SIM card deal, this could be your best option. You can't argue with £5 a month. The cheap deals don't give you much of an allowance to play with, but if you just want to keep your phone going and available to use for calls and texts with the occasional bit of internet use outside of your home WiFi, GiffGaff is a strong offering.

View: all giffgaff SIM only deals

EE

EE's SIM-only deals come with double-speed 4G

If you want a cheap SIM-only deal, EE is most certainly not the network to go for. But don't discount it entirely, because if you already own a good smartphone and you want to pair it with the fastest network in the UK with a SIM-only deal, you can do that. EE's SIM-only deals all come with EE Extra 4G, which means they work with EE's super-fast double-speed 4G network, rather than with its single-speed 4G network.

Vew: all EE SIM only deals

O2

A reliable network with great coverage

We've browsed all of the SIM-only deals available on the O2 network, and it's a mixed bag. Some of the really cheap deals are pretty good – if you want to bag a dirt-cheap SIM-only deal for £8.50 per month, you can. However, when you start adding minutes and data to your deals, you notice that O2's SIM-only prices increase rapidly. This is probably not a good network to go for it you want to get more than 1GB of data.

View: all O2 SIM only deals

Vodafone

A solid network with some decent deals

As with O2 above, Vodafone doesn't offer the very best SIM only deals. It would rather sell you a phone and charge you £30 per month, but if you're after a cheapo deal and you don't need heaps of data or loads of minutes, Vodafone could be a good option for you. Do be aware that some of these deals are on one-month rolling contracts, while with others you have to sign up for 12 months. You can tell which ones are which under the logo which states the contract length.

View: all Vodafone SIM only deals

Three

Three is the network that offers unlimited data

If you want a good handset on a cheap contract, Three used to be the go-to place. These days it's quite expensive, but it does still offer some of the best SIM only deals. It's the only major network to offer unlimited data as an option, and does so from £20 per month which is great as long as you don't need more than 200 minutes each month.

View: all Three SIM only deals

TalkTalk

Often has half-price deals once you click through!

TalkTalk is a telecoms company that also offers home phone, broadband and TV packages, so the best deals can be had if you sign up for more than one service. However, at the time of writing the cheapest deal is actually £3.50 per month – that's the £7.90 deal below, which is currently half-price once you click through.

View: all TalkTalk SIM only deals

iD

Cheap SIM-only deals all on one-month contracts

iD is a good option if bargain basement prices are what you covet. This is a network run and owned by Carphone Warehouse - it piggybacks on the Three network and offers many of the benefits that entains, including European roaming etc. It's an excellent option if you want great value with perks.

View: iD SIM only deals

Virgin mobile

An oldie but a goodie, offering one-month deals galore

Virgin Mobile has been going for a long time, and some of its SIM-only deals are particularly attractive. They're all one-month rolling contracts, so you can stop paying at any time if you so wish, giving you flexibility if you want to change your plan or go for a phone-inclusive deal down the line.

View: all Virgin Mobile SIM only deals

All the SIM-only deals on this page are checked every day to make sure they're still available and up to date!