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O2 SIM ONLY DEALS

Compare cheap SIM only contracts for the leading networks. BT, Virgin Media, Vodafone, EE, O2, Three & many more. Use our comparison to check prices, minutes, texts & data.

Why Choose an O2 SIM Only Deal?

O2 SIM Only Deals

O2 is one of the four main mobile networks in the UK, and their service is usually quite reliable. The mobile network provider offers 5G at no extra cost to their pay-monthly customers, and customers also enjoy a decent 4G service accompanied with perks such as VoLTE and WiFi Calling. Their plans include free O2 WiFi in over 16,000 locations, and if you’re also a Virgin Media Broadband customer, you’ll get double data and your broadband service will be upgraded to the next level.

They also provide a contract-free PAYG service, but you must purchase a 30-day bundle and renew it regularly to benefit from it.

All O2 plans, be it pay monthly or PAYG include O2 Priority, a great entertainment scheme that gets you free prize rewards, discounts, early access to event tickets, and more.

Pay Monthly SIM Deals

If you’re happy with your phone and don’t mind a long-term contract you can save a decent amount of money with O2’s SIM only contracts. You can also keep your number if you’re switching from another mobile network. All O2 contracts include O2 Priority which gets you the VIP treatment, with freebies and prize draws. You can also enjoy free O2 WiFi wherever available. O2’s SIM only contracts are set up for 5G, provided you have a 5G ready phone and you’re in an area with O2 5G. You’ll also need a 5G SIM if you don’t have one yet.

The carrier’s SIM only contracts also include WiFi Calling and 4G Calling at no extra cost, and you get unlimited UK calls & texts.

Some of the more expensive SIM only plans from O2 also include free entertainment options such as 6 months free Disney +, Amazon Prime Video, and more.

You can also supercharge your data allowance if you’re also a Virgin Media broadband customer. Supercharging your O2 SIM only plan will get you double data, and your broadband speed will be bumped up to the next tier.

Pay As You Go SIM Deals

The network’s Pay As You Go service is commitment-free, meaning there are no credit checks to pass or contracts involved. Plus you can earn cashback when you top up with O2 Rewards and get access to Priority. Having said that, you still have to purchase a 30-day bundle and then top up the right amount each month. O2 doesn’t have the old-school PAYG system, where you can just top up and use your credit as you go.

Pay Monthly Phone Deals

O2 has a wide range of mobile devices for you to choose from, including 5G ready handsets. If you are looking to get a pay monthly phone deal you can purchase devices from top tier manufacturers such as Apple, Samsung, Huawei, and Sony. You can also trade in your old phone and save on your monthly bill. However, you’ll have to pass a mobile phone credit check.

If you wish to pick a handset combined with a PAYG SIM, you’ll find more budget-friendly options such as Alcatel, Nokia, and ZTE.

O2 allows you to separate your airtime bill and phone bill and calls it O2 Refresh. This way you can upgrade your device whenever you want, provided you’re willing to pay the full price of your current device first.

You can also create your own phone plan; we’ll cover it below.

Custom Plans

O2’s Custom Plans lets you choose how much you want to pay upfront, and spread the cost of your monthly bill. Basically, you’re in control of your contract. You may spread the balance for up to 36 months and keep your monthly cost down, or alternatively, you may choose as little as three months and pay off the cost of the handset quicker.

You can also choose from a range of O2 Extras, such as Amazon Prime Video, Audible, Calm, and a few more. Students get a 20% discount when choosing a custom SIM plan from O2.

Refurbished Phone Deals

You can also purchase a refurbished phone from O2 and save some cash. O2 brands their refurbished phones as “Like New Devices” and they come with a 12-month warranty. The carrier makes sure all these devices undergo a thorough quality check first before they’re on sale. Plus, you can return them within the first 14 days of purchase if you’re unhappy.

You can combine a refurbished phone deal with either a pay monthly contract or a PAYG SIM deal. It’s up to you

O2 Frequently Asked Questions

Does O2 support 5G?

Yes, O2 offers 5G coverage. At the time of writing O2’s 5G is live in 193 cities and towns.

Does O2 have Wi-Fi Calling?

Yes, O2 has Wi-Fi Calling. To benefit from this feature you have to be on a SIM Only contract and your device must be compatible.

Does O2 have 4G Calling?

Yes, O2 has 4G Calling. The network provides a VoLTE service, but you’ll have to be on a SIM Only plan and your handset must support this feature.

Is O2 Priority free?

Yes, O2 Priority is a free loyalty program exclusively for O2 customers. However, while you’re on the app you’ll be using data.

Why can’t I access O2 Priority?

If you recently joined the O2 Network, it might be that Priority’s database hasn’t caught up yet, so your number might not be recognised. If it doesn’t work in a couple of days contact O2’s customer support.

How long does it take for a number to transfer on O2?

It shouldn’t take any longer than 24 hours. Usually, you’ll be able to make phone calls with a couple of hours, however, texting might take longer. If you still can’t use your new SIM after 24 hours please contact O2’s customer support.

How long does it take for Amazon referral vouchers to arrive on O2?

The Amazon voucher reward will be sent to both parties within 3 months of your referred friend’s connection.

How fast is O2’s 4G internet?

According to Open Signal’s latest reports, O2’s average 4G download speed is around 17Mbps and average upload speed is measured at 5.4Mbps.

Can I keep my number when switching to O2?

Yes, you can. It’s quite easy to keep your number. All you need is a unique PAC (Porting Authorisation Code) code, which you can get from your old network. You’ll deliver this code to O2 and they will do the rest.