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The UK’s best mobile deals with Unlimited+

Get the UK's best value SIM only deal when adding up to three extra SIMs for just £10 a month each.

Enjoy unlimited data on the UK’s best network, flexible monthly contracts with 5G and free EU roaming included.


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The UK’s best deal on Unlimited SIMs and best unlimited data deal in the UK: Based on price, speed and reliability. Price: UK's cheapest unlimited multi-SIM package in the UK on a 30 day rolling contract (excluding introductory or time limited offers). Prices correct as of 12.02.2025.

£168 a year savings: Switching to a UW mobile plan after your initial contract with your current supplier has ended could save you £168 a year. This calculation is based on the average 12-month out-of-contract cost calculated in January 2025 of Vodafone, EE, Voxi, Giffgaff and O2 (£444), compared to the average cost of UW’s Unlimited+ tariff at £276 (£23 a month). Correct as of 31 January 2025.

Unlimited+ SIM: Unlimited data, calls and texts every month. Rolling 30 day contract and roaming: subject to a personal usage cap of 500GB. Inclusive EU Roaming, subject to a 14GB roaming cap. See our Residential Fair Usage Policy. Terms apply.

£20 energy discount applies to customers switching energy plus 1 other eligible Bundle Services. See our Residential Products and Services terms for details and eligibility. Higher discounts are applied to customers taking energy plus two other services. Variable energy tariff only. Paying by Direct Debit.

Switching to a UW mobile plan after your initial contract with your current supplier has ended could save you £168 a year. This calculation is based on the average 12-month out-of-contract cost calculated in January 2025 of Vodafone, EE, Voxi, Giffgaff and O2 (£444), compared to the average cost of UW’s Unlimited+ tariff at £276 (£23 a month). Correct as of 31 January 2025.

Compare mobile deals

Unlock endless browsing and streaming with Unlimited+ or stick to Essentials for our most affordable option. Plus, get bigger savings for the whole family when you take 2 or more SIMs.

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  • UK's best network with 99% uk population coverage

  • Works on 4G & 5G

  • Wi-Fi Calling

  • Monthly rolling contract

  • EU roaming included

  • More multiservice benefits

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  • Works on 4G

  • Wi-Fi Calling

  • Monthly rolling contract

  • More multiservice benefits

Get a quote

Our Unlimited+ plan gives you access to 4G/5G with a compatible handset. Inclusive EU Roaming, subject to a 14GB roaming cap. Data consumption is subject to a personal usage cap of 500GB. For further details, please see our terms and conditions and our Mobile Fair Usage Policy.

EU roaming on our Essential plan has a £2 daily charge – subject to your 8GB data allowance. Our Essential plan gives you access to 4G with a compatible phone.

Save over £30 every month with the UK’s best mobile deal

Get two Unlimited+ SIMs for only £33 which could save you over £30 a month. Add more SIMs to keep the whole family connected for less on the UK’s best network.

UW

Vodafone

EE

O2

Savings with UW

Price for 1 SIM

£23

£42

£30

£36

£13/month on average

Price for 2 SIMs

£33

£84

£48

£64.80

£32/month on average

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Comparison table: The savings were calculated by comparing the monthly costs of the closest equivalent tariffs across EE, O2, and Vodafone with UW, based on the figures independently verified by FDM, the UK’s leading data specialist, as of 20/01/25. The savings with UW represent the difference between the competitor's pricing and UW’s pricing for one and two SIM plans.

Unlimited SIM: Unlimited data, calls and texts every month when you use your SIM in a personal mobile device. First Unlimited SIM for just £23 per month, then get up to three additional Unlimited SIMs for £10 each. Rolling 30 day contract - subject to the Residential Fair Usage Policy. Terms & conditions apply.

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Reviews:   60,634   •   Excellent

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Before joining UW, I was having difficulty opening a gas account with all suppliers ...

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Vic B

A fantastic energy company who always give you the best price and service they ...

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Stuart Hill

All ways willing to help with any problems I might have. But I still dont have a in ...

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MR M DAVEY

Truly excellent service coupled with great savings over many years!

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Mr J Hatt

Always good

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ian wilson

Have been member since 1995 ish. Never the very few problem that was not sorted with ...

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Godfrey Boothman

Have always had a great reaction from them and when we rang to do an MOT to check we ...

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Ian Brooks

I've been with Utility Warehouse for 11 years. Recently changed address and staying ...

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Deanne Morgan

I like it because I do.

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Martin

Essentially, I just don't get any issues with UW or their billing.

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SteveB

No problems so far

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Why UW Mobile?

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We’re powered by the UK’s best network, with 99% uk population coverage available with both 4G and 5G.

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Get better discounts on your variable energy tariffs when you take two or more SIMs.

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£400 towards any early termination fees with existing suppliers.

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We’ll give you 30 days to change your mind** and cancel your bundle if it doesn’t suit your needs.

£400 to help you switch: When you take a 3 or 4+ Service Bundle, we’ll give you credit up to £400 towards any termination fees (excluding Home Insurance) you have to pay your current providers. You’ll need to return any equipment and pay for services you used before you cancel. Additional requirements apply to customers who are tenants. Further terms apply see our Residential Products and Services terms and conditions.

**30 days to change your mind – Available when a new customer switches at least two eligible Bundle Services on the same date. Any equipment must be returned and services used must be paid for before cancelling. See our "Residential Products and Services" terms for details and eligibility.

Save on more than mobile when you bundle

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Mobile & Broadband

No connection fees or mid-contract price hikes

Save over £100/year vs BT

One of the UK’s highest rated broadband suppliers in the Which? 2024 broadband survey.

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Mobile & Energy

Unlock the UK’s cheapest energy deals

Save over £180/year vs Vodafone

Awarded Best Value for money at the Uswitch Energy Awards

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Save over £180/year vs Vodafone: We’ve compared our 2 Unlimited+ SIM deal with the annualised price of Vodafone’s equivalent services. Based on an average 12 month cost. Prices correct as of 21/06/24.

Save over £100/year vs BT: This saving compares our Ultra broadband on a 18 month contract (available to owner-occupiers and established tenants only) to BT (24 month contract) on fibre 40Mb product or nearest equivalent. Based on an average 12 month cost. Correct at 21/06/24.

Energy: Cheapest energy when you take energy and two other eligible bundle services vs standard variable tariffs offered by major suppliers (large and medium suppliers as defined by Ofgem), for sale nationally, excl. existing customer tariffs. Based on Ofgem's typical domestic usage. Payment by Direct Debit. Correct as of 03/02/2025. Contact us to verify.

How to switch your mobile phone contract to UW

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Order your SIM

If you’re new to UW, you can sign up here, and existing UW customers can add to their bundle by signing into their account. Or you can give us a call on 0333 777 0777. Don’t worry, you have the option to keep your old number or get a new one.

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Activate your SIM

We’ll send your SIM out 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.

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You're all set

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

Mobile Guides

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How Much Mobile Data Do I Need?

Here’s What You Need to Know : Whether you're a light user who sticks to browsing the web or someone who streams and makes video calls on the daily, figuring out how much mobile data you need can feel like a guessing game — especially with the variety of plans and data options out there.

Learn more
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A Guide to Mobile Networks in the UK

Streaming, scrolling, texting, browsing — in today’s digital world, we use our phones for just about anything and everything. Did you know that we spend an average of four and a half hours every day on our mobile devices?

Learn more
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What is Data Roaming?

How to Use Your Mobile Data Abroad

21 Jan 2025 - Staying online can be a lifesaver, from looking up directions to scrolling through social media — especially if you’re far from home and without a secure Wi-Fi connection.

Learn more




“Simplicity is key to our mobile tariffs. We have two great value SIM only deals - Unlimited+ and Essential, offering customers freedom and flexibility of a rolling 30-day contract. It’s also quick and easy to switch - you just put the new SIM in your phone and then activate it with your online account or UW app.”

Robyn Hyde - Customer Director

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FAQs

How does a SIM only deal work?

A SIM-only deal gives you data, minutes, and texts for a set monthly cost. However, you don't get a new phone like you would with a mobile phone deal – you just get the SIM.

Can I use my own phone when I join UW?

Of course. You can use our SIMs with any unlocked handset or any phone on the EE network too.

Find out how to insert our SIM in any handset.

How do I know if my phone is unlocked?

The easiest way to tell if your phone is unlocked is by inserting a different SIM card from another network into your mobile. If you’re able to connect to the internet, make calls, and send text messages, your phone is likely unlocked.

If you don’t have another SIM card from a different network provider, you can also check by going into your phone’s settings. The exact location will vary depending on your phone’s manufacturer, but you can typically check by:

  1. Opening ‘Settings’

  2. Selecting the carrier or network options

  3. Tapping the option to choose a network provider manually. If a list of available networks appears, your phone is unlocked. 

  4. Alternatively, on an iPhone, you can select ‘Carrier lock’. If it says ‘No SIM restrictions’, your phone is unlocked.

Can I keep my phone number when I join UW?

Yep, simply contact your previous network provider or text 'PAC' to 65075 to get a code which will allow you to bring your current number over to your new SIM. This won’t disrupt your service either.

Find out more about how to keep you current mobile number.

How do I find out when my phone contract ends?

The best way to find out when your mobile phone contract ends is by checking with your current provider. You may be able to log into your online account, check on an app, or give them a call to find out.

Mobile providers are now also required to contact you with an end-of-contract notification between 10-40 days before the end of your contract. This means that your provider should make you aware when your contract is coming to an end.

Will I need a new SIM card if I switch my mobile number to you?

Yes, we'll have to send you a new SIM card if you change your mobile number. However, it’s a simple process: all you need to do is give us your Porting Authorisation Code (PAC), which you can find out by texting ‘PAC’ to 65075 for free. We’ll do the rest.

How do I add more Unlimited+ SIMs?

You can take up to three additional SIMs when you have an existing Unlimited+ plan. Log into your online account or the mobile app to add more SIMs yourself, or give us a call on 0333 777 0777, and we’ll help out.

Do UW offer eSIMs?

We don't currently offer eSIMs, but we are always looking for different ways to support our customers, so we may look to offer them in the future.

Who are Utility Warehouse Partners?

UW Partners work as licensed distributors of UW’s services. They're formally registered with the company and introduce new people to Utility Warehouse, explain their services, and help them sign up.

Enter your postcode into our locator to find your nearest UW Partner.

What is the best UW offers for families looking to save on mobile plans?

The best option for families is our Family SIM deals, which provide multiple Unlimited SIMs on the UK's best network with flexible one month rolling contracts/

Additionally, you can get more unlimited SIMs at a lower price, making it even more affordable to keep the whole family connected.

Can I add more SIMs to my Family SIM plan?

Yes, you can add more SIMs to your Family SIM deal to keep the whole family connected. The more SIMs you add, the more you save.

Are there any long-term contracts with SIM-only deals?

No, our SIM-only deals offer flexible monthly contracts, so you don’t have to commit to lengthy plans.

Do Unlimited data SIM deals include roaming?

Yes, our Unlimited data SIM deals include EU roaming as standard with the Unlimited+ plan. You can enjoy up to 14GB of data while traveling in the EU without losing connectivity.

What are the benefits of Unlimited data SIM deals?

Our Unlimited data SIM deals provide endless surfing, streaming, and scrolling without worrying about data limits. Enjoy super-fast speeds with 4G and 5G, and EU roaming is included as standard with the Unlimited+ plan.

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Utility Warehouse Limited is authorised and regulated by the Financial Conduct Authority

The energy price cap

The government has announced that the energy price cap will increase on 1 April 2025. You don’t need to do anything - we’ll be in touch with all our customers on a standard variable tariff in the coming weeks with details of how this will impact you.