Our Best Pay As You Go SIM Deals
Love the freedom of a Pay As You Go SIM. Tailor data to suit your lifestyle. View our SIM Only deals and customise the cost to match your budget. Change or cancel anytime. No credit check. No commitment. And it’s all contract-free. Have a browse of our Pay As You Go SIM deals below.
With a Big Bundle SIM-only deal, top up your SIM card each month and we’ll exchange your credit for minutes, text and data allowance.
Our top pick
We cover roaming in our Europe Zone as part of our tariffs
Get up to 10% of your payments back with O2 rewards
£10
a month
We cover roaming in our Europe Zone as part of our tariffs up to 25GB
Get up to 10% of your payments back with O2 rewards
Includes 50 International minutes to over 42 countries
£15
a month
We cover roaming in our Europe Zone as part of our tariffs up to 25GB
Get up to 10% of your payments back with O2 rewards
Includes 50 International minutes to over 42 countries
£20
a month
We cover roaming in our Europe Zone as part of our tariffs up to 25GB
Get up to 10% of your payments back with O2 rewards
Includes 250 International minutes to over 42 countries
£30
a month
Pay As You Go means you buy an O2 SIM card from us then top it up with the minutes, texts and calls that you need when you need them. You'll also unlock exclusive O2 benefits, like Priority.
Looking for a SIM only contract? Check out our Pay Monthly SIMs.
Yes, you can. If you're switching from another network to O2, simply ask for a PAC code from your current provider, give it to us, and we’ll transfer your number to your new O2 Pay As You Go SIM.
If you're switching from an O2 Pay Monthly SIM to O2 Pay As You Go, you can get in touch by phone on 202 (free from your O2 phone), or on 0344 809 0202 (from any other phone). We’ll take care of the rest and we can even sort out your new PAYG SIM for you.
Learn more about keeping your number.
Pay As You Go SIMs give you more freedom to switch which handset you want to use, and they can make your budget stretch further.
You can pop your PAYG SIM into any compatible phone - ideal for when you want to take your backup phone to a festival or a long camping trip. Just move your SIM to the other phone and keep your smartphone safe at home.
Use a PAYG SIM to switch to a billing option that gives you more control compared to monthly contracts. Keep your handset going after you've paid off the original phone contract and just insert your new SIM into the handset. You'll avoid any fuss over transferring your apps, files and photos to a whole new phone.
Plus, use data rollover to save up unused data for when you really need it.
At O2, our Pay As You Go SIMs can give you access to up to 500 international minutes to over 42 countries with our £30 Rolling plan - learn more about International roaming. Booking your European getaway? Enjoy free EU roaming up to 25GB within our Europe Zone to find all the best spots for romantic dinners and awesome sightseeing - all at no extra cost.
You can choose your Pay As You Go SIM card from this page. From there, you can top up your Pay As You Go SIM using MyO2, or by phone on 4444 free from your mobile, or 0345 606 2277 from a landline.
Once you've topped up, you are now free to use your allowance until it runs out, giving you more flexibility with how much you spend each month.
If you're a Rolling plan customer, you’ll just need to insert your SIM into your handset to activate your O2 Pay As You Go SIM.
Yes, of course. Just scroll up this page to view all of our best Pay As You Go SIM card offers. All of our deals offer access to O2 benefits, and you can earn rewards.
There are 4 types of SIMs: eSIM, standard, micro and nano. Not sure which SIM type you need? Check your device manual or ask our team for support, we'll make sure you get the right fit.
Right here at O2. You can browse all of our latest Pay As You Go SIM only deals to get great value. With free EU roaming and O2 benefits - we've got something for everyone. Find your local O2 shop to pop in for a visit or find the store contact number.