O2 offers Big Bundles on Pay As You Go from £10/month. Compare their top-up bundles & deals.
In the UK, O2 offers a range of Pay As You Go bundles, starting from £10 per month. Available with no contract & no credit check, you can get 7GB of data, unlimited UK minutes and unlimited UK texts for a £10 monthly top-up.
Customers on O2 Pay As You Go will also benefit from data rollover and access to the O2 Priority app. You can also get £10 of free credit when you sign up for the service online.
In this article, we’ll review O2’s Pay As You Go service and the Big Bundles that are currently available on O2. We’ll look at the price plans and features available, before comparing O2’s Big Bundles to those available on other mobile networks. Finally, we’ll look at the coverage on O2 and how you can keep your current phone number when moving to the service.
|Prices From:||£10 per month|
|Contract Length:||No contract & no credit check|
|Big Bundle Plans:||
|O2 Coverage Alternative:|
- 1 Bundles & Pricing
- 2 Comparison to Alternatives
- 3 Coverage
- 4 Joining Big Bundles
- 5 Keeping Your Phone Number
- 6 Frequently Asked Questions
- 7 More Information
Bundles & Pricing
In the UK, O2 is one of the largest Pay As You Go mobile networks.
If you’re using O2 on a Pay As You Go basis, you’ll most likely be using their Big Bundles plan. Here, you’ll need to top-up your phone every month, with your Pay As You Go credit being converted automatically into a 1-month bundle. At present, you can get a Big Bundle from £10 per month with inclusive UK minutes, texts and mobile data.
On O2’s Big Bundles plan, you’ll convert your Pay As You Go credit into a one-month allowance of UK minutes, texts and mobile data.
The cheapest available bundle on O2 is now the £10 Big Bundle. This comes with 7GB data, unlimited UK minutes and unlimited UK texts. If you need a bundle with more data, you can get the £15, £20 and £30 Big Bundles.
The following table shows a list of O2’s Big Bundle plans:
You’ll currently get £10 of free credit when you order your O2 Pay As You Go SIM card online. When it arrives, you’ll have 28 days to activate your SIM. You can then text FREE10 to 21500 to claim your £10 of free credit.
All of your Big Bundle allowances last for 1 calendar month. Any unused allowances will expire with the bundle, except from data which can be rolled over into the following month when you renew your bundle automatically. O2 will try to automatically renew the same bundle when your current one expires so you’ll need to top-up again before the expiry date to benefit from data rollover.
In the past, O2 also offered a £5 Big Bundle, a £10 International Big Bundle and a £20 Premium International Big Bundle. These bundles are no longer available for new customers.
If you’re looking for a lower-cost bundle, we’d recommend giffgaff’s £6 goodybag instead. This comes with unlimited minutes, unlimited texts, 500MB data and coverage from O2.
If you’re looking for a Big Bundle with inclusive international minutes, you’ll now get 500 international minutes included on the £30 Big Bundle. These are valid for calling 29 European destinations.
As an alternative to O2’s Big Bundles, consider getting a giffgaff bundle instead. giffgaff is a low-cost sub-brand of O2 which offers Pay As You Go bundles from £6 per month. They also offer larger amounts of data from £10 per month, along with 5G speeds.
The following table shows a side-by-side comparison of giffgaff’s goodybags and the O2 Big Bundles:
|Giffgaff Goodybag Bundles||O2 Big Bundles|
|Prices From:||£6 per month||£10 per month|
|Contract Length:||No contract – cancel anytime||No contract – cancel anytime|
|£6 per month:||500MB data
|£8 per month:||3GB data
|£10 per month:||10GB data
(4G & 5G)
|£15 per month:||25GB data
(4G & 5G)
|£20 per month:||100GB data
(4G & 5G)
|£25 per month:||Always On data
|£30 per month:||–||100GB data
|£35 per month:||Unlimited data
(4G & 5G)
|5G Coverage:||✔ 193 towns & cities
(powered by O2)
|2G, 3G & 4G Coverage:||✔ 99% coverage
(powered by O2)
|✔ 99% coverage|
|More Information:||giffgaff Website||O2 Website|
On giffgaff, you’ll also benefit from 1GB of extra data from the third month onwards. This is available on the £10, £12, £15 and £20 plans.
O2 offers rollover for unused data allowances when you automatically renew your Big Bundle on Pay As You Go. The renewal needs to happen automatically so you’ll need to top-up your account with enough credit before your current bundle expires.
To give an example, if you have 2GB of unused data remaining on the £10 Big Bundle, you’d receive an extra 2GB of data in the following month’s bundle. This would increase your normal 7GB data allowance to 9GB of data.
Data rollover is capped at 100% of your normal bundle allowance. For instance, the £10 bundle normally comes with 7GB of data. You can therefore rollover a maximum of 7GB per month, making a total of 14GB per month if you do this. You’ll lose your data rollover when changing price plan or bundle, or when leaving a gap between the renewal of your bundles.
For more information, see our guide to data rollover on UK mobile networks.
If you already have an O2 Pay As You Go SIM card, you can buy a Big Bundle through the My O2 app. Alternatively, you can send a text message as follows:
|Bundle Required||Bundle Code for Opting In|
|£5 Big Bundle (no data)||Text BIGBUNDLE5 to 21300 – for existing customers only|
|£10 Big Bundle (with 7GB data)||Text 10DATABB to 21300|
|£15 Big Bundle (with 15GB data)||Text 15DATABB to 21300|
|£20 Big Bundle (with 30GB data)||Text 20DATABB to 21300|
|£30 Big Bundle (with 100GB data)||Text 30DATABB to 21300|
It’s also possible to change your Pay As You Go plan by calling O2’s automated service on 2202.
If you’re an existing Pay As You Go customer wanting to opt-in to a special offer, you’ll need to send a text message as follows:
|O2 Pay As You Go Offer||SMS Code for Opting In|
|£10 of free credit
(available for 28 days only after your ordering SIM through this page)
|Text FREE10 to 21500|
You can order a free SIM card from O2 if you don’t have one already.
Out of Bundle Charges
If you exceed the inclusive allowances on your O2 Pay As You Go Big Bundle, you’ll pay 55p/minute and 30p/text. You’ll also pay £2/day for using mobile data. These charges will also apply if you don’t have an active bundle on your account.
The following table shows the out-of-bundle rates on O2’s Big Bundles plan:
|Voice Calls||55p/minute (any network, any time)|
|Calls to Voicemail||35p/call (when outside of allowances)|
|Calls to Special Rate Numbers||55p/minute access charge
+ service charge from the company you’re calling
|Text Message (SMS)||30p|
|Picture Message (MMS)||55p|
If you want to use your mobile phone without topping up every month, you’ll generally be better off getting a SIM card from giffgaff instead. On giffgaff, there’s the option to use your mobile phone without topping up every month. Pay As You Go usage will cost you 25p/minute, 10p/text and 10p/MB.
Classic Pay As You Go
Previously, O2 offered a Classic Pay As You Go plan where it wasn’t necessary to top-up your phone every month. Instead, you could use your mobile phone at a simple rate of 3p/minute, 2p/text and 1p/MB.
Unfortunately, the Classic Pay As You Go SIM card was withdrawn from sale in November 2019. If you’re looking for a similar plan, consider getting a 1pMobile SIM card instead (1p/minute, 1p/text and 1p/MB with coverage from EE).
For more information, see our guide to traditional Pay As You Go tariffs in the UK.
Comparison to Alternatives
In the following section, we’ll compare O2’s Big Bundles to rival offerings from other mobile networks.
£5 per month bundles
Unfortunately, O2 no longer offers a £5 Big Bundle to new Pay As You Go customers. For existing customers, the £5 Big Bundle will give you unlimited UK minutes and unlimited UK texts. Mobile data will cost you £2/day.
£10 per month bundles
At the £10/month price point, O2 is currently offering a Big Bundle with unlimited minutes, unlimited texts and 7GB of data.
giffgaff offers a £10 golden goodybag at this price point. It comes with 10GB of data (increased automatically to 11GB from your third month onwards). This is 3GB more data than you’d get on O2 (4GB more from the third month onwards).
£15 per month bundles
O2 offers a £15 Big Bundle with unlimited minutes, unlimited texts and 15GB of data.
Around this price point, you can also consider giffgaff’s £15 golden goodybag which comes with unlimited minutes, unlimited texts and 25GB data (an extra 10GB compared to O2’s £15 Big Bundle).
£20 per month bundles
O2’s new £20 Big Bundle comes with unlimited minutes, unlimited texts and 30GB of data.
As an alternative, giffgaff’s £20 goodybag comes with unlimited minutes, unlimited texts and 100GB of data (up to 5G speeds). Alternatively, there’s a £25 goodybag with Always-On data (unlimited data with 4G speeds on the first 80GB per month).
For more information, see our full comparison of the UK’s best value Pay As You Go bundles.
2G, 3G and 4G Coverage
In the UK, O2 offers 99% population coverage on their network. Customers using a Big Bundles Pay As You Go plan can access 2G, 3G and 4G coverage from O2.
Before signing up to the Big Bundles plan, we’d strongly recommended double-checking O2’s coverage in your area. You can do this by entering your postcode on O2’s online coverage map:
We’d typically recommend joining O2 only if you’re able to get 3G or 4G coverage when indoors.
You’ll get the exact same coverage when using a SIM card from giffgaff so this can save you a little bit of money if you’re looking for coverage from O2. Our in-depth guide to the coverage on O2 has more information.
O2 currently offers 5G coverage in 193 UK towns and cities. However, this isn’t available to customers using the O2 Pay As You Go service.
If you’d like access 5G coverage on your phone, consider getting a Pay Monthly SIM card from O2 instead. Alternatively, 5G coverage is also available on giffgaff’s golden goodybags without the need for a contract.
For more information, see O2’s web page on 5G. This has a full list of compatible 5G handsets and plans.
Tethering & Personal Hotspot
Tethering or personal hotspot refers to the process of sharing your smartphone’s internet connection with other devices (e.g. with your laptop or tablet).
You can tether without any restrictions on O2 Pay As You Go. This allows you to share your Big Bundles data allowance with other devices. If you’re using an older version of the iPhone, however, you may experience problems with this if your handset isn’t running iOS 10.1 or newer, with version 26.1 or later of the O2 carrier settings.
Joining Big Bundles
Customers who are new to O2 can join Big Bundles in one of two ways.
If you already have a mobile phone that you’d like to use on O2, you can simply order a free Pay As You Go SIM card for it. Before you set up the SIM card, you’ll need to make sure your handset is unlocked. For more information, you can read our step-by-step guides to unlocking an iPhone and unlocking a Samsung Galaxy smartphone.
If you’d like a new mobile phone to use on O2, it’s possible to buy a Pay As You Go smartphone from O2’s website. Prices range from about £20 for a basic Pay As You Go smartphone, all the way up to more than £1,000 for the latest flagship iPhone.
Keeping Your Phone Number
If you’re switching from another mobile network to O2, it’s a straightforward process to keep your current phone number.
To do so, you’ll need to ask your current mobile network to provide you with a PAC Code. You can get this through your mobile network’s website or application, or by texting PAC to 65075.
Once you have the PAC Code from your old mobile network, order your new Pay As You Go handset or SIM card from the O2 website. When it arrives, you can provide the PAC Code to O2 through this online form. Once you’ve submitted the form, the phone number transfer will be scheduled, normally for the next working day.
For a step-by-step guide on moving your phone number to O2, please select your current mobile network from the drop down menu below:
Unfortunately, it isn’t possible to move Pay As You Go credit from your old mobile network to O2. For this reason, you should try to use it up before moving your phone number to O2. This is because the account on your old mobile network will be deactivated after you use your PAC Code, resulting in the loss of any unused Pay As You Go credit.
Frequently Asked Questions
|What Pay As You Go bundles are available on O2?||
O2 currently offers the following four Pay As You Go bundles:
|How do I get £10 of free credit on O2 Pay As You Go?||
When you order an O2 Pay As You Go SIM card through this link, you’ll get £10 of free credit when you activate it and top-up your SIM card within 28 days. Once you’ve done this, text FREE10 to 21500 to claim your £10 of free credit.
|How much do I need to top-up by each time?||
On O2’s Pay As You Go service, there’s a minimum top-up of £10 each time. This would convert into a £10 Big Bundle giving you unlimited UK minutes, unlimited UK texts and 7GB data for 1 month.
|What are the standard Pay As You Go rates on O2?||
If you don’t have an active Pay As You Go bundle on your account, you’ll pay 55p/minute and 30p/text. You’ll also pay £2/day for using data on your phone. Because this can very quickly add up, we’d only recommend using your phone if you have an active bundle on your account.
|What coverage will I get on O2 Pay As You Go?||
You’ll get 99% population coverage on O2’s 2G, 3G and 4G mobile networks in the UK. You can check the availability of coverage in your area by entering your postcode on O2’s online coverage map.
|Will I get access to 5G on O2 Pay As You Go?|
|Can I keep my current phone number?||
Yes. It’s easy to keep your current phone number. Simply ask your current mobile network to provide you with a PAC Code. This can be obtained through your mobile network’s website or app, or by texting PAC to 65075. You should then provide O2 with this PAC Code after ordering your Pay As You Go plan.