O2 5G mobile phone deals.
Experience the power of 5G on the O2 network. 5G and unlimited data now available on selected tariffs.
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† RPI+/CPI Price Increase - Each year, your Pay Monthly airtime tariff will be adjusted according to O2’s RPI price increase model, RPI+. Your bill will be adjusted in April by the RPI rate announced in February that year, plus 3.9%.
