O2 Deals

O2 is the commercial brand of Telefonica UK Limited and is a leading digital communications company with the highest customer satisfaction for any mobile provider according to Ofcom. With over 23 million customers, O2 runs 2G, 3G and 4G networks across the UK, as well as operating O2 Wifi.

Coverage Map | Terms & Conditions

We have O2 Contracts and Upgrades available for 114 different phones from 14 brands. To change the default handset, simply choose your brand from the drop-down list then the specific model.

Pay as you go phones from O2 can be found in the PAYG tab from £11.50 to buy outright. You'll usually have to pay an initial top-up charge of £5-10 which is included in our totals, but there are no ongoing fees.

O2 SIMs are available from £6.00 average per month. These are rolling monthly contracts and pay-as-you-go.

In addition, O2 have SIMs suitable for Tablets, Mi-Fi devices and USB dongles from £11.00 per month. These are data-only and cannot be used in phones.

Network Benefits

Free WiFi on the London Underground
O2 Travel
O2 WiFi
O2: Charge to Mobile
O2: Priority
Recommend a Friend and Earn Rewards
Unlocked Phone
What type of deal do I need?

If you'd like a new phone, there are two main types of plan:

These are meant for new customers to the network - for example if you're currently on Three but you'd like to switch to O2.

If you're an existing O2 customer you can place an upgrade order if you wish to stay with them with no interuptions and keep the same number and SIM. You're usually able to upgrade 30-45 days before the end of your contract.

We've found that in most cases new customer contracts work out to be the best value. Don't worry about losing your number, the process for transferring is simple. It involves contacting your current network and asking for a PAC code - this is then given to your new network to port your old number to your new SIM.

Check out our Contracts Vs Upgrades guide for a full overview of the pros and cons of each.

Pay-as-you-go (PAYG)
If you'd like to buy a device outright and only pay for the amount of data, minutes and texts you use then PAYG is a good option. The phone may be locked to O2 and an initial top-up required, but you aren't locked into a contract.
Phone SIMs
If you're just looking to purchase an ongoing airtime bundle for the device you already own you can purchase a SIM with a 12-month or 30-day rolling contract. These are usually good value if you make use of mobile data - you'll have a set allowance per month and you can even set spend caps to make sure you're never hit with an unexpected bill.
Data SIMs
In most cases networks restrict the use of phone SIMs to only operate in your phone. While you could tether over Wi-Fi or USB, you may want a dedicated allowance for your laptop. In this case you'll need a data SIM - there a no minutes or texts allocated to it, but it will work in non-phone devices such as tablets, Mi-Fis or USB dongles.
How do I order?

After you've made your choice of colour, storage size and the plan that suits you best click the "Get Deal" button on the deal card. You'll be transferred to the retailer's or network's website where you can place your order. Please note that we are a price comparison service - your order is not placed with us, but with the retailer directly.

What if I change my mind after I order?

If your order hasn't been dispatched yet, then you may be able call the customer service number found on the retailer's site and cancel. If you've already received the phone, you have 14 days after taking delivery to request a return - even if you've opened the packaging and used it. It's equivalent to going into a phone shop and trying their display models before you buy, since you weren't able to do this beforehand having bought online. Some networks may opt to offer even longer evaluation periods to make sure you're fully satisfied with their signal coverage.