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Compare O2 Mobile & SIM only deals, upgrades, coverage, speeds, perks and more

  • Uswitch Awards Best Network for Roaming 2022
  • Uswitch Awards Most Popular Mobile Network 2022
  • Perks at O2 venues
  • Priority ticket booking for O2 venues

Top O2 deals

Bestselling Handset Deal
iPhone 11 64gb Unlimited minutes, unlimited texts, 30GB data £39.00 upfront 24 month contract £22.00 per month Buy now
Uswitch Award Winner - Reseller of the Year
EU roaming included
Bestselling SIM Only Deal
O2 Multi SIM Unlimited minutes, unlimited texts, 30GB data 12 month contract £8.00 per month Buy now
Cyber Monday deal
EU roaming included

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Why choose O2?

Uswitch Awards Best Network for Roaming 2022

Recently confirming that it will not be bringing back EU roaming charges for its customers in 2022, makes O2 the only major mobile network to not reintroduce these fees.

Uswitch Awards Most Popular Mobile Network 2022

Winner of the award for Most Popular Mobile Network 2022 in the most recent Uswitch Awards. O2 was chosen based on customer overall satisfaction scores from 17,000 consumers across the UK.

Perks at O2 venues

Enjoy O2 perks using Priority Moments. Get access to everything from free coffee, Discounts at top attractions and many more.

Priority ticket booking for O2 venues

Get exclusive and priority access tickets to gigs 48 hours early as an O2 customer. You can also enjoy perks at O2 venues including fast-track entry and access to exclusive bars.


O2’s network offers 97% 4G population coverage across the UK to all its customer as well as 5G in a growing number of locations. So whether you’re on a monthly phone contract or a pay as you go SIM only deal, you’ll receive the same level of coverage.


O2’s 4G network has an average connection speed of 17.1Mbps, and its 5G averages at 115.7Mbps

According to a network speed survey conducted by OpenSignal (April 2020 - September 2021)


O2’s range of benefits include:

1) O2 Priority offers and discounts: The O2 Priority app is one of the best rewards apps around, offering promotions and discounts for a range of high-street stores, restaurants and events.

2) O2 Priority presale tickets: O2 customers can buy tickets for events at any O2 venue 48 hours before the tickets go on general sale.

3) Perks at O2 venues and Twickenham Stadium: O2 customers get a lot of perks at O2 venues, such as priority queueing, access to select lounge rooms and free cloakrooms and money off food and drinks.

4) O2 Rewards: As an extra reward for its pay as you go customers, O2 gives you up to 10% of your top-ups back every three months.

5) Inclusive EU roaming: Unlike most other networks. O2 has not reintroduced roaming charges within the EU. This means that O2 customers can use their allowance of calls, texts and data for no extra charge when travelling in the EU.


EU roaming O2 customers can use their texts, calls and data allowance for no extra charge in a range of European and a smattering of non-EU locations, in what O2 dubs its 'Europe Zone'.

International roaming For customers looking to travel outside the Europe Zone, there are O2 Travel add-ons. These let you use as much as data you like while you're away.

Customer service

All calls made to O2’s customer service helpline are free when made from a pay monthly handset. This is applicable both in the UK and abroad.

The service is open between 8am and 8pm Monday to Friday and from 9am and 6pm at weekends. You can reach them by ringing 202 from your mobile phone.

Alternatively, you can ring from a landline on 0344 8090202. Calls are charged at standard network rates.

If you purchased your mobile through, the company’s customer service department can be reached on 087 0600 3009 or by calling 202 from your handset.

O2 customers benefit from free delivery on the latest handsets, the company’s O2 Reward Club scheme as well as exclusive invitations to O2 events. Visitors to the company’s entertainment-outpost the O2 arena can even access exclusive content when they are there.

The O2 website is home to a range of how-to guides to help you to deal with everything from getting the most out of O2 services, setting up your mobile phone, billing and procedures for when your mobile phone is lost or stolen.

Data rollover

O2 pay as you go customers can roll over any unused data at the end of the month. It is capped at two months’ worth of data though, so you can’t stockpile an endless trove of data.

By way of example, if you’re on a 5GB monthly plan, the most you can roll over would be 10GB.

Mobile app

Available for iPhone and Android, the free-to-download MyO2 app allows you to manage your bills and add data if you run out. You can also check call charges with itemised billing.

Download MyO2 for iPhone.

Download MyO2 for Android.

o2 refresh

Like similar schemes from rival networks, O2 Refresh is a programme that lets customers upgrade to a new phone at any time.

It does this by decoupling the cost of the phone from the cost of your allowances. So you've effectively got two contracts running concurrently: a device plan and an airtime plan. If you want to upgrade, you trade-in your existing phone and pay off whatever remains.

Want more about O2 Refresh? Here's everything you need to know.


O2 offers Pay Monthly, Pay As You Talk and SIM only price plans.

The Pay Monthly plans feature a range of options for combinations of calls and minutes, and the deals run over 18 and 24 month contracts.

Starting at £14 on a 24 month contract, or £26.57 on a 12 month contract at Uswitch, you can choose from a range of options when selecting a Pay Monthly plan from O2.

Pay As You Go call charges start at 35p per minute and 12p per text, but bolt-ons are available with every top up, so with a top up of £7.50 you can receive unlimited texts, and for £10 you can receive 500 minutes of O2-O2 and standard landline calls.

The SIMplicity package starts at £3 per month, and offers customers a SIM only deal with a number of text, call and data bolt-ons available.

Wi-Fi calling

O2 allows customers to make calls over Wi-Fi. So it's possible to continue to make calls when there's no mobile reception, or in areas where signal strength is weak.

Tethering policy

O2 allows Pay Monthly and Pay As You Go customers to use their phones as a portable hotspot to get online on laptops, tablets and any other wireless-enabled devices.

But if you're an iPhone owner and a pay as you go customer, you may need to update your software.

Naturally, tethering your phone to other gadgets can eat into your data allowance pretty quickly. So it's best to use it sparingly, unless you've got a large data allowance and a lot of it usually goes unused.