O2 Homepage

  • Grab a deal in our January Sale

    Save up to £99.99 on the Samsung S5, Sony Z3 and HTC One (M8) on our £28 tariff. Offer ends 14 Jan 2015.

    See all sale offers
  • Choose Amazon Fire phone

    Get the only smartphone with Firefly - identify over 90 million items at the touch of a button. £0 upfront on our £27 tariff.

    Find out more
  • Out of this world sim offer

    Get 3GB data for the price of 2GB, plus unlimited minutes and texts, on our £20 a month tariff. Offers ends 4 February.

    Choose a sim
*RPI information for O2 Refresh, Pay Monthly and Pay Monthly Sim Only tariffs

From 2015, your O2 Refresh Airtime Plan/Pay Monthly tariff will be adjusted every year on your April bill by the Retail Price Index (RPI) rate of inflation announced in the preceding February