Mobile network O2 has launched Switch Up - a new service that claims to offer more freedom to 'flex your plan' and upgrade your handsets before the contract is up. It's an interesting proposition, and ...

O2 has launched SIM-only and mobile plans as part of its summer sale - but shoppers who are on the lookout for deals, we've found it much cheaper elsewhere. The retailer has launched a summer sale on ...

If you're looking to upgrade to a cheaper SIM only deal then you may want to check out the latest offering with O2. Mobile network, O2, are one of the only providers to offer Brits free data roaming ...