†Monthly price of your Airtime Plan will increase by £1.80 each April from April 2026, except Data Only and Smartwatch Plans which will increase by 75p. Out of bundle charges increase by 5% every 1 April.
SIM cards
Pick the best deal for your device
40GB for £10.99†
24-month SIM Only. Get 40GB for £10.99 a month, for the first 6 months. Then £21.99 per month. Ends 30 April.
Why choose a SIM only deal?
Keep your number
Even if you're joining from another network
My O2
Manage your account 24/7
Perks and prizes
Download the Priority app for exclusive offers
Our network is a winner
We've been awarded Best Network Performance 2020 by Mobile News
†Monthly price of your Airtime Plan will increase by £1.80 each April from April 2026, except Data Only and Smartwatch Plans which will increase by 75p. Out of bundle charges increase by 5% every 1 April. See https://www.o2.co.uk/prices