Mobile and SIM-only deals
Compare the latest mobile phone contracts, SIM-only options and handsets.
O2 was created in 2002 by BT Cellnet, however the company is now owned by Spanish telecommunications giant Telefonica. In addition to its own business, O2 also operates and owns another large telecom company; Giffgaff.
As well as being a renowned mobile phone network, O2 is the primary sponsor of some of the largest live entertainment venues in the UK.
In addition to the venues, O2 also sponsors several high-profile sports teams, notably including the England international rugby team.
In the UK, O2 currently offers 99% coverage on 2G, 3G and 4G networks. So, it’s probably not surprising that O2 won ‘Best Network Performance’ at the Mobile News Awards 2019.
Other benefits include O2 member perks, including:
In addition to the Priority scheme, O2 also operates a refer-a-friend system, which allows each customer to bag perks like Amazon UK vouchers.
Incentives can be useful, but they shouldn’t be the deciding factor. Shop around multiple providers for the latest deals and check the terms and conditions before you buy.
O2 offers many of the latest mobile phones on contract, including popular brands like Apple, Samsung, Huawei, Google and Sony. Unlike most networks, O2 also offers flexible tariffs for those on contract.
O2 pay as you go (PAYG) mobile phones are a potential solution for people who don't use their phone very often, but still want to be connected when needed.
Even pricier phones (for example the iPhone X) are available to buy on PAYG, offering customers more flexibility without locking them into a 12, 24 or 32-month contract.
If you’ve already got a mobile, O2 SIM-only deals on PAYG can be pretty economical –as you only pay for what you use, without the expense of a handset.
You can top-up your SIM-card and buy an O2 big bundle , which comes with 4G, or unlimited minutes, texts and a data rollover.
When you choose PAYG with O2 you’re still entitled to O2 priority and O2 rewards, allowing you to retain any priority benefits you have. It's worth noting though that you can't currently get PAYG deals through GoCompare.
For customers looking for a cheaper alternative to contract deals, a pay monthly SIM -deals might be the best option for you. This deal is still a contract, but without the handset costs attached.
SIM-only deals could help save you money if you already have a phone, as long as you stay within your monthly allowances.
The more economical O2 SIM-only deals often have limited data and might not be suitable if you use your phone for activities like HD streaming, downloading or gaming. In this case, paying less for a cheaper SIM could end up costing you more if your allowance needs topping up monthly.
Still not sure? Take a look at our other network guides: