O2 Mobile Deals
Compare the best O2 mobile phone deals with Dialaphone.
O2 Mobile Phones
Having formed under its original name of Cellnet in 1985, O2 is the UK’s second largest mobile operator, serving in excess of 25 million customers with high-quality 4G, 3G, and 2G signals that covers almost the entire country.
The O2 brand, which succeeded One2One in 2002, has been owned by Spanish giant Telefónica since 2006. In December 2013, it became one of the first providers to bring the 4G service to the UK, offering customers crisp and undisrupted calls, browsing, texting, and downloading. Embracing the infrastructure that first launched over 30 years and continues to be developed each year, O2 offers one of the fastest roaming internet services available.
O2 customers can also take advantage of various bundles and add-ons, including packages that bring down the costs of roaming charges when abroad and tariffs for making international calls from the UK.
Clients can also capitalise on various membership benefits such as O2 Priority rewards, which include pre-sale tickets for events at the various O2-sponsored venues across the UK.
First and foremost, though, the phone carrier is one that offers a reliable service for all 4G activities no matter where you are in the UK. Moreover, the company provides an extensive range of SIM only, Pay As You Go, and Contract deals while their SIMs are compatible with almost every device on the market (dependent on restrictions placed on individual handsets).