RPI: Each year your Airtime Plan will be adjusted by the Retail Price Index (RPI) rate of inflation. Find out more at o2.co.uk/prices.

Direct purchases only. Pay the cash price for your device or spread the cost over 3 to 36 months (excludes dongles). The cost of your Device will be the same however long you choose. A minimum upfront cost may apply. You need a monthly rolling Airtime Plan for the length of the Device Plan. Pay off your Device Plan at any time without charge. You can then keep on your Airtime Plan, upgrade or leave. If your Airtime Plan ends for any reason (including for switching to another operator) you will need to pay your Device Plan in full.

UK calls/texts to standard UK landlines and mobiles and when roaming in our Europe Zone. Fair Usage policy applies. Special and out of bundle numbers chargeable. 4G phone required to access 4G. 4G available in selected areas.

Change your airtime tariff after 30 days and then once every billing month during your minimum contract period, choosing from a selected family of tariffs. Some tariff extras are only available on the starting tariff, are not transferable, and may be lost if you change to an ineligible tariff. Devices are subject to availability.

0% APR. Finance subject to status and credit checks, 18+, Direct Debit. Credit provided by Telefónica UK Ltd, SL1 4DX. Terms apply, see o2.co.uk/terms.

Each year your Airtime Plan will be adjusted on your April bill by the RPI rate of inflation announced in the preceding Feb. See o2.co.uk/prices.

Unlimited Data available on O2 Custom Plans on selected handsets and selected SIM Only tariffs. Fair use policy applies, personal and non-commercial usage only. If you regularly use 650GB of data per month or tether 12 or more devices we may consider this to be non permitted use and have the right to move you to a more suitable plan. EU roaming capped at 25GB per month, chargeable at £3.50 per GB afterwards. For full terms see www.o2.co.uk/terms.

£40 off on the Sony Xperia L4 when you get a Big Bundles Pay As You Go Sim direct from O2. Device was £169, now £129. Subject to availability, whilst stocks last. Promotion ends 30th September 2020. £15 minimum top up required.

Pay As You Go Only. Your Big Bundle tariff value is the minimum monthly credit balance / top up required to activate and renew a bundled allowance of European Zone data allowance and allowance of minutes and texts in the UK which you can also use whilst roaming in our Europe Zone. Bundles expire after one calendar month and cannot be rolled over unless your tariff explicitly includes it. 

Handset subject to availability.

Fair usage and terms apply, see o2.co.uk/terms.