Mobile Deals in Southampton

Utility Warehouse

Discover our best mobile deals in Southampton with UW.

You can choose our Unlimited MAX SIM for endless entertainment or our Essential MAX SIM for fantastic value.

Our network spans 99% of the UK, providing reliable coverage throughout Southampton.

Moreover, customers could save more by bundling additional UW services like energy and broadband.

Join our 3,851 mobile customers in Southampton today, who are collectively saving an estimated £704,733 per year.

The legal bit

Mobile Savings Estimate: Save £182 with Unlimited Max compared against the closest equivalent 30 day rolling unlimited data tariffs across EE, GiffGaff, O2, Three and Vodafone over a 12 month period. Price correct as of 16/04/2026. Excludes offers and promotional tariffs.

Additional SIMs charged at £0/month for six months, then £10/month each. Terms apply.

Over 80 Awards and Counting

Here are a few things that make UW special

Have questions? Speak with our Partners today to learn more.

Beat rising bills with a savings guarantee

Get up to £400 to help you switch and £250 in Cashback Card welcome credit. Plus:

If you don’t save, we’ll pay double the difference
Our best ever priced Full Fibre from £23.95
The UK’s cheapest unlimited data mobile SIM
All helping unlock our best energy tariffs

The legal bit

£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. If you take a 3 Service Bundle, up to £200 of this credit towards a mobile handset/device termination fee is only available if your bundle includes at least one Unlimited SIM. 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 here.

Cashback Card Credit: New Utility Warehouse customers only, joining on or after 14 September 2026 paying via direct debit. Take 2+ eligible service types (Energy, Broadband, Mobile, Boiler & Home Cover) within 30 days and a UW Cashback Card to earn a Welcome Bonus of up to £250, paid in £50 monthly instalments. 12-month clawback applies if bundle services are cancelled. Terms apply.

UW Price Pledge: Eligible new customers (joining on or after 22 April 2024) who take 3 or more qualifying services and regularly use their Cashback Card. If a customer doesn’t save with UW (incl. Cashback) in their first year vs their previous provider (or cheapest major provider where applicable), they can apply to claim the UW Price Pledge between 12–15 months after their sign-up date; the pledge & no exit fees only applies to qualifying services taken at sign-up. When you claim, we’ll assume an average Cashback Card saving of £160 a year (based on customer usage data from 03/04/23 to 31/03/24, for users who earned Cashback at least once a week, excluding promotional activities) or your actual Cashback saving if higher. Full details, eligibility and terms available here.

Don’t miss out

The more services you add, the bigger the savings you can unlock. Guaranteed.

Build the perfect bundle of energy, broadband, mobile and insurance that’s right for you.

Maximise savings with early termination fee support, welcome bonuses, free SIM deals and more.

The legal bit

UW Price Pledge: Eligible new customers (joining on or after 22 April 2024) who take 3 or more qualifying services and regularly use their Cashback Card. If a customer doesn’t save with UW (incl. Cashback) in their first year vs their previous provider (or cheapest major provider where applicable), they can apply to claim the UW Price Pledge between 12–15 months after their sign-up date; the pledge & no exit fees only applies to qualifying services taken at sign-up. When you claim, we’ll assume an average Cashback Card saving of £160 a year (based on customer usage data from 03/04/23 to 31/03/24, for users who earned Cashback at least once a week, excluding promotional activities) or your actual Cashback saving if higher. Full details, eligibility and terms available here.

Peace of mind

Have a chat with no pressure, it doesn’t cost a penny

No repeating yourself. Speak to the same person every single time.

And relax. Seriously. We’ll handle the rest. Switches start in as little as 2 days.

The legal bit

£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 here.

30 days to switch: Available when a new customer switches at least two of their services on the same date: energy, broadband, mobile and insurance (insurance means Boiler & Home Cover or Income Protector only). Any equipment must be returned and services used must be paid for before cancelling. Terms apply.

UW Price Pledge: Eligible new customers (joining on or after 22 April 2024) who take 3 or more qualifying services and regularly use their Cashback Card. If a customer doesn’t save with UW (incl. Cashback) in their first year vs their previous provider (or cheapest major provider where applicable), they can apply to claim the UW Price Pledge between 12–15 months after their sign-up date; the pledge & no exit fees only applies to qualifying services taken at sign-up. When you claim, we’ll assume an average Cashback Card saving of £160 a year (based on customer usage data from 03/04/23 to 31/03/24, for users who earned Cashback at least once a week, excluding promotional activities) or your actual Cashback saving if higher. Full details, eligibility and terms available here.

Cheapest variable 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 13/04/26. Contact us to verify. See UW terms and conditions.

Streamline your services

One bill – for all your home services.

One account – with only one password to remember.

One number – for our award-winning Customer Services team

Rated by experts

Helping households with bills for 30+ years. With over 80 awards in the past 10 years alone.

Voted UK’s best value energy supplier. Over 60,000 Trustpilot reviews, rated Excellent.

Five star rated building and contents home insurance plus boiler and home cover.

The legal bit

Awards: Our Home Insurance cover has been given five stars by independent consumer experts, Defaqto (2026) and Moneyfacts (2026).

Disclaimer: Insurance is an FCA-regulated product. As a result, UW Partners are not able to advise you about, nor answer any questions about, any of the UW insurance products. The role of UW Partners is limited to providing you, via the screen, with information about the UW insurance products. You can contact UW directly on 0333 777 0777 if you have any questions.

How does UW work?

UW offers exceptional mobile services in Southampton.

By considering a bundle of mobile with energy and broadband, you could unlock estimated annual savings of up to £259.

With a straightforward monthly bill, managing your utilities has never been easier.

There are 395 UW Partners in Southampton ready to assist you in finding the perfect package for your needs.

Experience the convenience of combining your services and maximising your savings with UW.

The legal bit

Multi Service Savings Estimate: We’ve compared our most popular services with the average price of our main competitors’ equivalent services. By ‘main competitors’ we mean at least three of the largest suppliers by market share who sell a comparable product. The saving shown is based on the average of these competitors’ pricing when compared with an equivalent new UW customer who takes three services – energy (Double Gold variable), broadband (Full Fibre 150), mobile (Unlimited) and pays by direct debit.

Energy: Save on average £48 per year on your energy bills when you take a variable energy service plus 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 17/04/26. Contact us to verify.

Broadband: Switching to UW Full Fibre broadband after your initial contract with current supplier has ended could save you £44 a year. This calculation is based on the average UW saving of our Full Fibre 150 tariff vs BT, EE, Plusnet, Sky, Talk Talk, Virgin and Vodafone’s closest equivalent tariff (£134.45) over three years. Correct as of 17/04/26.

Mobile: Save £182 with Unlimited Max compared against the closest equivalent 30 day rolling unlimited data tariffs across EE, GiffGaff, O2, Three and Vodafone over a 12 month period. Price correct as of 16/04/2026. Excludes offers and promotional tariffs.

Additional SIMs charged at £0/month for six months, then £10/month each. Terms apply.

What our customers say

Partners in and around Southampton

Swanwick

I have a passion for helping customers and members of my team. Having been a very happy customer since 2002, it was a natural decision when asked to become a UW Partner in 2019 and I’ve never looked back. I’ve also run my own dance school in Southampton since 1996, and am renowned for taking care of my dancers and having oodles of patience when taking the steps required! I apply the same ethos to my customers. Switching to UW is a very simple process, and I’m here to help you every step of the way, with the added bonus of having me help you during your life as a UW customer. Do contact me for further information on how I can help you.

Totton

Hi my name is Cheryl and I’m a UW Partner as well as a UW customer. The best thing about being a customer is the Cashback Card and the best thing about being a Partner is saving friends, family and customers money off their bills and seeing their faces light up when I tell them of their savings. Outside of UW, my main job is running my own beauty business which enables clients to relax in this very stressful world. My hobbies are exploring new places and countries with my hubby, teenage son and dog. I love swimming and going to the beach trying my new hobby of paddle boarding. Trying to make this the year of being able to stand up on the board – any tips please share away.

Southampton

Hello my name is Randy and I work for the NHS as a registered mental health nurse. My regular job as a mental health nurse requires that I lead the implementation of high quality mental health care on a daily basis. My hobbies include watching the English premier league and swimming. I find swimming particularly interesting as this is a hobby I made a decision to learn just about 18 months ago and I am hoping to get better by the day . I am a UW partner and a customer and I feel very fulfilled every time I make a difference to people by helping them save on their bills. You can also become a UW customer and I am happy to help you save on your bills or earn extra income as a UW partner. Ask me how

Compare mobile deals to save up to £180 a year with Unlimited Max

Unlock endless browsing and streaming with Unlimited Max or stick to Essential Max for our most affordable option. Plus, get bigger savings for the whole family when you add extra SIMs for free until the end of March.

Unlimited Max | £23

Save up to £174 with Unlimited Max – from just £23 a month.

99% UK coverage
Works on 4G & 5G
Wi-Fi Calling
Monthly rolling contract
EU roaming included
Up to 3 extra SIMs FREE

Essential Max | £5

Our cheapest Sim-only deal from only £5 a month.

Works on 4G
Wi-Fi Calling
Monthly rolling contract
More multiservice benefits

The legal bit

Mobile Savings Estimate: Save £182 with Unlimited Max compared against the closest equivalent 30 day rolling unlimited data tariffs across EE, GiffGaff, O2, Three and Vodafone over a 12 month period. Price correct as of 16/04/2026. Excludes offers and promotional tariffs.

Additional SIMs charged at £0/month for six months, then £10/month each. Terms apply.

Best UW mobile deals in Southampton

UW offers a fantastic opportunity for savings with our mobile services in Southampton.

For just £23 a month, you can secure an Unlimited Max mobile SIM, providing unlimited data, texts, and minutes to keep you connected.

When you take additional Unlimited Max SIMs, the price drops to just £0 a month each.

By bundling your mobile with energy and broadband, you could experience even greater estimated savings on your overall bill.

Speak to a UW Partner to help find the best deal for you.

The legal bit

UK’s best/cheapest mobile: 2 or more SIMs on Unlimited Max Tariff, 30 day rolling contract v equivalent tariffs (excl. intro / time limited offers). Contact us to verify. Correct at 13/04/2026

Unlimited Max tariff: New mobile customers only. 1 Unlimited Max SIM at £23 required. Inclusive allowance free on up to 3 additional SIMs for 6 months, then standard charge p/m each. Out-of-allowance usage charges apply. Porting of existing no. required. See terms. Correct at 13/04/2026.

Inclusive EU Roaming with Unlimited Max, subject to 14GB roaming cap. Data consumption subject to 500GB personal usage cap. EU roaming on our Essential Max plan is subject to your 10GB data allowance and gives you access to 4G with a compatible phone. See terms & fair use policy.

Why choose UW for Mobile?

Our SIM-only packages are second to none. Here’s what’s included in both:

● No speed restrictions
● Strong 99% network coverage across the UK
● Roam like you’re in Southampton in the EU
● Wi-Fi, 4G and 5G calling on Unlimited Max
● Flexible monthly contract
● Up to £400 towards contract exit fees

The legal bit

Inclusive EU Roaming with Unlimited Max, subject to 14GB roaming cap. Data consumption subject to 500GB personal usage cap. EU roaming on our Essential Max plan is subject to your 10GB data allowance and gives you access to 4G with a compatible phone. See terms & fair use policy.

£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 here.

Pick the SIM option that works best for you

UW offers some of the best mobile deals in Southampton, perfect for keeping your entire family connected without worries about data usage.

Our Unlimited Max SIMs are designed for anyone who needs flexibility and dependability on the go.

Starting at just £23 per month, you can also add up to three more SIMs from £0 each per month.

A great value SIM-only deal in Southampton

UW provides excellent mobile options in Southampton.

For those who prefer not to rely on unlimited data, the Essentials MAX SIM deal could be a perfect fit.

With 10GB of data available from only £5 a month, staying connected has never been better.

Peace of mind promise

Switch to UW in Southampton for your home services and enjoy the peace of mind promise.

You’ll receive our best value deals, all neatly combined into one easy-to-manage bill.

We’ll even contribute up to £400 towards any early termination fees with your current suppliers, and you’ll have 30 days to change your mind, penalty-free.

The legal bit

£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 here.

30 days to switch: Available when a new customer switches at least two of their services on the same date: energy, broadband, mobile and insurance (insurance means Boiler & Home Cover or Income Protector only). Any equipment must be returned and services used must be paid for before cancelling. Terms apply.

More Partners in and around Southampton

Our Partners are a team of local Utility Warehouse experts up and down the country, who help people save money on their bills. With 70,000 Partners across the UK, there’s someone nearby who’ll be happy to chat.

Areas in and around Southampton

Eastleigh
Totton
Chandlers Ford
Hedge End
West End
Netley
Hythe
Warsash

Nearby areas Southampton

Mobile Guides

Frequently Asked Questions

Who are Utility Warehouse?

We’re the UK’s only genuine multiservice provider. We help people save on their household bills by bundling their energy, broadband, mobile and insurance into one. We offer guaranteed savings. We’re trusted by over 1,386,585 customers and are rated Excellent on Trustpilot.

What’s a UW Partner?

UW Partners in and around are people just like you, who earn an extra income by introducing others to UW and helping them sign up as customers. They also help people to become a UW Partner and start earning an income by recommending UW to their friends and family.

Can I trust you?

Yes, of course – over 1,386,585 customers and 70,000 UW Partners already do. We’re also regulated by the energy regulator Ofgem, the telecoms regulator Ofcom, and the Financial Conduct Authority. We’ve been doing business for nearly three decades and are listed on the London Stock Exchange, which means we’re one of the UK’s largest publicly-owned companies.

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 mobile SIMs with any unlocked handset or any phone on the EE network too.

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.

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.

What does unlimited data mean?

Unlimited data means that you don’t have a cap on your data allowance each month in and the rest of the UK. There are no restrictions on how much data you use, so you won’t have to worry about using up all your allowance.

Our Unlimited data, calls and texts SIM-only plan is perfect for surfing the internet, taking video calls, or even streaming media, as you can use as much as you need.

Can I use my unlimited data abroad?

We’re offering EU roaming as part of our Unlimited tariff, so you can take your unlimited data abroad and use up to 14GB of it at no extra cost. It’s part of our Roam like Home service, which lets you use your allowance in 45 locations across Europe. You can also send texts and make calls back to the UK as you would normally with your allowance. Our Unlimited tariff has no data usage cap when browsing in the UK.

What is a family plan?

A family plan is a special family SIM-only deal that covers multiple SIMs. With a family plan, you can choose a deal that ensures your whole household is connected, all as part of a single convenient bill.

All your home services in one

Supplying gas and electricity in Southampton

Save over £259 a year when you switch your broadband and mobile to UW.

The more services you bundle with UW, the more you save on your energy.

Award winning energy deals for Southampton

It’s not just our great energy prices that make us stand out as one of the best energy suppliers in Southampton. We’ve been awarded Best Value for Money and Best Customer Service at the Uswitch Energy Awards 2024, and runner-up in the Overall Customer Satisfaction category.

It’s the eighth year in a row we’ve won at the Uswitch Energy Awards. That’s over 80 industry awards in the past decade UW have picked up.

Recently, we also secured the highest overall score for energy suppliers in Which?’s latest annual energy firm rankings. UW scored 75% overall – coming ahead of 17 other energy suppliers.

Take control of your energy costs with a smart meter

UW customers across Great Britain can upgrade to a smart meter for free. With a smart meter, you get accurate insights about your energy usage so you can take steps to save money. And you won’t have to worry about taking manual readings ever again.

Switch to the cheapest energy provider in Southampton

Switching your utility supplier in Southampton to UW is simple. And remember – the more services you take, the more you save.

So what next? Get your quote after choosing your tariff, we’ll contact your current energy supplier to let them know you’re switching and then in 2-5 working days your new gas and electricity services will be live.

All your home services in one

Best UW mobile deals in Southampton

We have a great value Unlimited mobile deal in Southampton. For just £23 a month, you can get unlimited data, texts, and minutes.

And thats just for your first Unlimited+ SIM – when you take a second, third or fourth Unlimited+ SIM, they are just £0 a month.

All of our mobile SIM deals in Southampton, are on a flexible contract, so you can always be sure you’ve got the package that works best for you.

And you always have the option to either keep your current phone number or get a new one – the choice is yours.

Why choose UW for Mobile?

Pick the SIM option that works best for you

A great value UW SIM-only deal in Southampton