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UK’s best SIM-only deals give you all the data you need with Unlimited Max

Get UW’s best multi-SIM-only deals with flexible monthly contracts on so you can keep your phone without committing to lengthy plans. 

Unlock the UK’s cheapest SIM-only plan with Unlimited Max that can keep up with your data usage with 99% UK coverage.

Add up to three extra unlimited data SIMs with 5G and free EU roaming for free until the end of March with our £23 Unlimited Max SIM.

Our Unlimited Max plan

Save up to £174a year with Unlimited Max.

Need more data? Our Unlimited+ SIM-only deal gives you unlimited data and includes access to 5G. Whether you’re a serial internet surfer or love to stream the latest entertainment, our unlimited data plan has you covered. View our Unlimited data SIM deals.

You’ll also get EU roaming at no extra cost.

  • 4G & 5G Connectivity

  • Wi-Fi Calling

  • Monthly rolling contract

  • EU roaming included

  • Up to three extra SIMs free

Our Essential plan

Our Essential plan gives you 10GB of data allowance a month at an incredible price. So you don’t have to worry about your monthly phone bill changing.

With our cheap SIM-only Essential plan, you’ll get:

  • 4G Connectivity

  • Wi-Fi Calling

  • Monthly rolling contract

Save more with our best SIM only deals

When you purchase your first Unlimited Max SIM for £23 a month, you can add up to three additional SIMs for free until the end of March. Go Unlimited Max for the UK’s cheapest unlimited deal. Discover our family SIM deals.

Save over £120 every month with the UK’s best mobile deal for multi-SIMs

Add three Unlimited Max SIMs for free for six months to Unlimited Max for £23 a month to keep the whole family connected for less with 99% UK coverage.

Vodafone

EE

O2

Three

Savings for 1 SIM

£22

£15

£15

£8

Savings for 4 SIMs

£157

£129

£129

£101

Your £150 welcome gift is waiting

Save a bundle by turning everyday spending into savings on your bill with up to 10% cashback, and up to £150 credit for switching to UW.

Step 1: Choose two or more qualifying services to switch. 

Step 2: Add our 3-month free Cashback Card trial. 

Step 3: We'll load your card with up to £150 in bonus credit.

Utility Warehouse cashback card and wallet

Why choose UW for your mobile SIM deal?

Flexible monthly contracts

You won’t have to commit to a lengthy mobile phone plan as our SIM-only deals are on monthly rolling contracts – so you’re never locked in. Learn more about our mobile deals.

Ultra-fast speeds


Our mobile plans are powered by a network with 99% UK coverage, so you’ll get top speeds and strong signal nationwide. Unlimited+ customers will also get 5G.

Crystal-clear connections

We also offer Wi-Fi Calling with both our Essentials and Unlimited+ plans, so you can enjoy a clearer connection, even in locations with poor cellular signals.

30 days to change your mind

After you switch to UW, you’ll get 30 days to change your mind and cancel your contract without a penalty.

How to switch your mobile provider to UW

Order your SIM

Our SIM-only plans are available to new and existing UW customers. New customers can sign up here, and current customers can add to their bundle by signing into their account. Or you can give us a call on 0333 777 0777.

Activate your SIM

We’ll send your SIM to you, and it should arrive in 3–5 working days. Simply activate your new SIM in your online account or the UW app. You can find out more about activating your SIM here.

You’re all set

Once your new SIM card has been activated, pop it into your phone, and you’re ready to go.

A network you can rely on

When you switch your mobile provider to UW, you’ll get access to fast speeds and high-quality Wi-Fi Calling. 

With 99% UK coverage available with both 4G and 5G. Use our mobile network checker to see what coverage you can get in your area.

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Reviews: 75,825Score: 4.5 stars

i was not expecting to change ...

i was not expecting to change back to gmt when the clocks went forward

By David Bradshaw

Best decision ever made

Best decision ever made , delighted with all bills with UW

By Mrs Marion McPherson

Customer service was great and…

Customer service was great and impressive. Every issue raised was well attended to

By Julius Femi Daramola

Let’s dial things up

1

Order your SIM

New to UW? Start here. Existing customer? Add a SIM on your online account or UW app.

2

Activate your SIM

Once it arrives in 3–5 working days, activate it in a few clicks on your online account or app.

3

Pop it in your phone

And you’re done! Time to get back to that group chat – and you can choose to keep the same number, too.

FAQs