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    • Free next-day delivery.

    Get your new mobile quickly.

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    Based on over 24,000 reviews.

    Award-winning service.

    Crowned the best by O2 and Three.

    Over 25 years in business.

    With 2 million+ customers.

    Buy O2.

    Unmissable data deals with premium perks.

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    Bubl Bubl

    Why O2?

    Joining O2 means getting more from your network, like huge data deals, top 5G speeds and seriously great value perks and offers.

    Image 1

    Treat yourself with O2 Priority.

    A little reward doesn't have to be so little, with freebies, perks and early access to gig tickets on the O2 Priority app. Open up to enter exclusive competitions and grab yourself a little treat while you're out and about – totally free!

    Stay connected, anywhere.

    With O2 you're always connected – no matter where in the world you are. Roam in 75 destinations, including Europe, Australia, New Zealand and the USA, all at no extra cost.

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    Free, reliable Wi-Fi.

    Join O2 and get access to free O2 Wi-Fi hotspots in over 15,000 locations. There's no need to use up your data, just connect for a great connection whenever you need it.

    Go big and go fast.

    With 5G connectivity from O2, you can browse, surf and stream faster than ever before, with 5G speeds now available across most major cities and towns in the UK (as well as smaller places and villages, too.)

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    Airtime Rewards.

    Get rewarded for the things you're already doing with the Airtime Rewards app from O2. Sign up to get money off your bill when you buy from popular UK brands and your favourite stores.

    The stories you love, at your fingertips.

    There's something for everyone with Star on Disney+, and when you join O2 it's easy to add it into your plan for just £7.99 a month. Even better, get started and O2 will throw in £2 off your monthly bill.

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    Manage everything in one place.

    Using the My O2 app, you can keep track of your data usage, view your bills, add Bolt Ons to your monthly allowance and manage your mobile with ease.

    O2 Bolt Ons.

    When your data limit comes creeping up or you just want a bit more than usual this month, Bolt Ons have you covered. Add on the extra data, minutes or texts you need as a one-off or as a rolling boost and avoid those pesky out-of-contract charges!

    Image 6

    FAQs

    Get answers to your questions about O2.

    How good is UK coverage with O2?

    O2's 5G coverage is strong and reliable in major cities and towns across the UK, as well as in many smaller villages – and more locations are gaining coverage all the time. However, you can only access 5G speeds with a 5G compatible handset and 5G data plan. 4G coverage from O2 stands at over 99% indoors (and out!).

    Is O2 Priority included with my new contract?

    O2 Priority is free to all O2 customers. It's an easy-to-use app that allows you to access top offers, perks and bargains as well as early access to gig tickets, top prize draws and exclusive competitions.

    What is the My O2 app?

    My O2 is a free app service that lets you manage your account and billing from your phone. You can use the app to check your remaining data, minutes and text allowances as well as see top offers from Priority. You add Bolt Ons through the My O2 app, too.

    How do I get a cheap O2 mobile deal?

    We specialise in great value mobile deals, and O2 has some of the best available, on the latest and greatest handsets. Whether you want tons of data or the newest handset, you'll get a fantastic deal (and top perks!) from O2 with Buymobiles.

    † O2: The monthly price shown will increase each April by the RPI rate published in February of that year plus 3.9%. Three: The monthly price shown will increase each April by the CPI rate published in January of that year plus 3.9%. Vodafone: The monthly price shown plus all out of bundle charges will increase each April by the CPI rate published in January of that year plus 3.9%.

    1-Month Free Insurance

    Available when selecting an insurance option while purchasing a mobile phone contract or upgrade deal. Subject to acceptance.

    Next-Day Delivery

    On mobile phone orders placed before order cut-off, subject to stock availability, security and quality checks, acceptance on network contract, and delivery provider. Postcode restrictions apply.

    General

    All pay monthly offers subject to security and credit check. Charges will apply for paper billing. Charges may also apply for non-Direct Debit payment. Promo codes cannot be used in conjunction with any other offer. Full Legals.

    Data Speeds

    Advertised 4G and 5G speeds are available in selected areas. Exact speed depends on location and number of users. Check coverage using the link in the shopping basket before buying.

    Cashback

    Unless otherwise stated, cashback incentives are provided by ourselves and not the Network provider or third-party. Full details are in our T&Cs.

    Products

    All products bought on our website are provided by ourselves, not the network, and are subject to our full T&Cs.