O2 has started rolling out a complimentary 5G+ network upgrade to all Pay Monthly customers, but you'll need a compatible phone and SIM card to access the faster speeds ...
O2 has upgraded its mobile network in and around Stamford Bridge – home of Premier League football club Chelsea – strengthening connectivity for customers attending fixtures and events at the stadium.
O2's 5G+ network is live in 700 places in the UK, but you'll have to upgrade manually and, in some cases, change your SIM.