SIM Only deals

Keep your current device and join us with SIM Only. Plans start from £6 a month, or try us out with a free Pay As You Go SIM.

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All our SIMs are 5G Ready

If you’ve got a 5G device, you can enjoy super-fast 5G with our SIMs at no extra cost.

Check 5G coverage

Phone SIMs

Need a new Pay Monthly plan?
We've got some great deals.

Pay Monthly SIMs

Looking for some Pay As You Go options?
Look no further.

Pay As You Go SIMs

Tablet and Mobile Broadband SIMs

Get connected on the go with a Pay Monthly
Mobile Broadband plan.

Pay Monthly SIMs

Keep it simple with our Pay As You Go Mobile
Broadband options.

Pay As You Go SIMs
Looking for business plans? Discover our
business SIM deals now.
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Free Pay As You Go phone SIM


Top up for great rates and get even more with our Data Packs.
Order phone SIM
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Free Pay As You Go broadband SIM


Stream and play with 200MB of free data every month.
Order broadband SIM

Why choose Three?

Frequently asked questions.

What is a SIM Only deal?

Why SIM Only?

Can I keep my phone number if I switch to SIM Only?

Can you cancel a SIM Only contract?

Can I use WhatsApp with SIM Only?

Can I get 5G coverage with a SIM Only plan?

Can I use my SIM Only plan abroad?

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Best SIM Only deals

All our SIM plans include unlimited minutes and texts. And our Unlimited data plan gives you all the data you could ever need, with no limits or caps. Plus, with Go Roam, you unlock your UK allowance in 71 destinations.

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5G SIMs at no extra cost

All our SIMs are 5G Ready. So, if you’re in a 5G area you can enjoy super-fast 5G with no speed limits and no data caps.

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Network coverage

Our combined 3G and 4G network covers 99% of the UK outdoor population. And we’re currently dedicating more spectrum to our 5G network than any other UK mobile operator. Try us out with a 1-month SIM Only plan, or with our free Pay As You Go SIM.

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Phones on Three

We've for a wide range of phones online and in store, available on both Pay As You Go and Pay Monthly contracts. From Apple's latest iPhone to the newest Samsung devices, as well as the latest from HTC, Sony, LG and Huawei and more.

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Tablets on Three

From Apple iPad and Samsung Galaxy Tab, to the Huawei MediaPad, you can get your hands on the latest tablets at Three. And if you've already got a tablet you love, get a data SIM Only plan.