FREE O2 Sim Card

Get Your Free O2 Pay As You Go SIM Card – No Contract, No Credit Check, Total Freedom

Stay connected with complete flexibility by ordering your free O2 Pay As You Go SIM card today. O2 is one of the UK’s most trusted mobile networks, offering reliable coverage, fast 4G and 5G speeds, and a range of Pay As You Go bundles that fit your lifestyle and budget.

When you choose O2 Pay As You Go, you’re in control. There’s no long-term commitment, no monthly bill, and no credit check. Simply top up when you need to — and enjoy great value data, minutes, and texts on the O2 network.

📦 What You Get with a Free O2 SIM Card

Ordering a free O2 SIM card is quick and easy — and you’ll receive it within just a few days. Once it arrives, simply insert it into your unlocked mobile phone and start using it right away.

With O2 Pay As You Go, you can:


  • Enjoy free delivery anywhere in the UK

  • Choose O2 Big Bundles or flexible top-up options

  • Get access to O2 Rewards every 3 months

  • Experience fast and reliable 4G & 5G coverage nationwide

  • Access O2 Priority – with exclusive deals, discounts, and early concert ticket access

  • Keep your existing number or get a brand-new one

Your O2 free SIM card can be used in any unlocked smartphone, tablet, or mobile broadband device, giving you the freedom to stay connected however you choose.

Take your plan abroad

Travelling to Europe? Whether you’re on Pay Monthly or Pay As You Go, use your data (up to 25GB), minutes and texts at no extra cost across over 45 countries in our Europe Zone.

And if you’re going further afield, we’ve made it easier than ever to stay in touch with our O2 Travel Bolt On.

Going outside of Europe?

Good news - with our O2 Travel Inclusive Zone Bolt On, available with Volt and Plus Plans, you get inclusive roaming in 27 destinations outside Europe.

This means you get unlimited minutes, texts and data in our O2 Travel Inclusive Zone, so you don't have to worry about running out or extra charges. You can also make unlimited calls back to the UK and within your destination (calls to other countries aren’t included and will be charged at standard roaming rates). There’s no upper usage limit on data, but speeds are capped at 2Mbps (that’s fast enough to stream content on your mobile without any buffering).

If you’re going beyond our Inclusive Zone, you can still subscribe to the full O2 Travel Bolt On for £7 a day in selected destinations.