Find exclusive offers and discover Switch Up, Flexible Superfast 5G Tariffs, Free Roaming & O2 Priority. Stay connected, wherever you are.

Find O2 offers on iPhone, Samsung and more. Reduce your monthly bill by spreading the cost up to 36 months. Flex your data up or down monthly on Pay Monthly devices.

As an O2 customer, buying a plan through us comes with a whole host of incredible benefits. Whether you want to roam freely in the EU (up to 25GB), get front-row seats to your favourite …

O2 Switch Up is included in Plus Plans and Ultimate Plans or it can be added to a Classic Plan for a monthly subscription fee. New contract price may be higher than existing depending on …

O2 Switch Up is included in Plus Plans and Ultimate Plans or it can be added to a Classic Plan for a monthly subscription fee. New contract price may be higher than existing depending on …

Get help with everything to do with your O2 account – with information on your billing and usage, how to use My O2, and what to do if you're looking to upgrade.

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Jun 30, 2025 · To sign in, visit My O2 or open the app, enter your username, and follow the on-screen instructions. If you’re having trouble signing in, take a look at our signing in help content.

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With an O2 SIM only deal, enjoy a flexible plan with generous data, texts and minutes, predictable billing, and access to our reliable 4G and 5G network. Plus, get exclusive perks with O2 Priority.