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    Phones

    • Phones
    • Upgrades
    • Apple iPhone
    • iPhone 17
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    • Refurbished phones

    Tablets, laptops and dongles

    • Tablets
    • Apple iPad
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    • Dongles and mobile WiFi

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    • Pay Monthly SIMs
    • Pay As You Go SIMs
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    Accessories and more

    • Tech and accessories
    • Apple Watch
    • Smartwatches
    • AirPods
    • Great deals
    • Black Friday deals

    O2 for you

    • Flexible tariffs
    • Upgrade with O2 Switch Up
    • Fair Deal for O2 customers
    • Peace of mind with O2 Insure
    • Tech news and inspiration

    Saving you money

    • Data rollover
    • Sell with O2 Recycle
    • Auto-save plans
    • Multisave discounts
    • Virgin Media and O2 benefits

    Perks and rewards

    • Priority Tickets and offers
    • Pick your O2 Extras
    • Collect Airtime Rewards
    • Perks at O2 venues
    • Pay As You Go Rewards

    Stay connected

    • Travel with EU roaming
    • Check your coverage
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    • 5G is here
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Find the best SIM for your device

Explore our SIM deals

Choose your SIM

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Pay Monthly SIMs

Keep the phone you love and get all the data you need. Take your pick from our 12 and 24-month Pay Monthly SIM Only deals.

Choose a SIM
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More data, same price

Enjoy more data for up to three months at no extra cost, with selected Pay As You Go SIMs. Already with O2? Text MORE to 2424.

Get yours

Latest Pay Monthly offers

Unlimited Classic Plan for £20 a month

Great low price with SIM Only, across 24 months. Rises to £22.50 from Apr 2026, £25 from Apr 2027.

Shop your SIM

Spend less and enjoy an Extra

With a 24-month Unlimited Plus Plan. Rises to £24.49 a month from Apr 2026, £26.99 from Apr 2027.

See SIM Only offer

Roam freely in 123 destinations

And enjoy an Extra with an Unlimited Ultimate Plan. Rises to £32.99 a month from Apr ‘26, £35.49 from Apr ‘27.

Shop SIM Only deal

Pay As You Go SIMs

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Big Bundles

Enjoy awesome perks and great-value tariffs with unlimited minutes and texts

Dive in

Rolling plans

The easiest way to pay without a contract

Find out more
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Need to top up?

Find out how to top up your Pay As You Go devices

See your options

Perks for being with O2

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Data rollover

Didn’t get through all your data? Let’s keep it rolling.

Find out more
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Roam freely in the EU

Unlike other major networks, we don't charge extra for EU roaming, up to 25GB

Get on board
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Priority

Jump into a world of exclusive rewards and experiences. It’s our way of saying thanks for being with us.

Let’s go

Looking for another SIM?

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Tablet SIMs

Pick a SIM for your tablet or dongle

See the deals
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Smartwatch eSIMs

Connect your cellular smartwatch with a Pay Monthly eSIM

See smartwatch eSIMs
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Mobile broadband SIMs

Stay connected while you’re on the move

Find out more
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