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 ...

O2 has a variety of pay monthly SIM only deals, which is different to a monthly contract because there is no need to buy a new phone. The SIM can simply be inserted into your current mobile phone, or ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. (Unsplash) Keeping the running costs of a mobile phone down is easy when you know how. Look beyond the maze of monthly contract ...