O2 SIM only deals

Here at ATS Connection we offer O2 SIM only data plans options with 30-day, 12-month, or 24-month contracts, so you can select the length of your commitment. Shorter contracts are always more expensive, but committing to a 30-day contract offers you the freedom to leave whenever you like.

With its pay monthly SIM only packages, O2 offers a variety of data allocations to fit every need and budget, ranging from 1GB to Unlimited data. With allocations ranging from 7GB to 100GB.

You need not worry about exceeding your limit because all O2 SIM only options also include unlimited calls and texts. Just keep in mind that photo messages are additional.

Every O2 SIM only plan we offer is 5G capable. All O2 SIMs that we use are 5G enabled, so if your phone is 5G ready and you live in an area with a strong 5G signal, you’ll be upgraded to the faster service immediately. Customers will still be able to access O2’s 4G network even if they don’t have a 5G capable phone. O2’s 5G network is still being rolled out across the UK, therefore not all areas have access to it yet. You will automatically be linked to the 4G signal if this is the situation in your neighbourhood.

With its 4G signal, O2 covers 99 percent of the UK, and its 5G service is also expanding very quickly. Visit our coverage checker to see how strong the signal is where you are, including if 5G is available. On its 4G network, O2 delivers an average download speed of 18.2 Mbps, while on its 5G network, it offers speeds of up to 100 Mbps or more.

Once you have chosen the deal for you, or have spoken to a member of our team, we will get everything set up for you. You will just need to contact you current provider to request a PAC code if you are wanting to keep your sim but don’t worry, we will run it through with you. If you are already on O2 then it will automatically switch over.

Yes. If you are moving to a new provider such as from EE to O2 then you will need to get your number ported over. But don’t worry! Our team is here to deal with that for you.

Yes. We offer free inclusive roaming throughout Europe. Customers wanting to use their phone further afield can sign up for our O2 Travel for a small extra fee.

All of our O2 SIM plans provide unlimited calls and texts. However, data limits can vary greatly. You ca consider how much data you used during your previous contract to determine how much data you require. If this is your first phone, then follow this general instruction:

• 1GB: A constrained choice that won’t be sufficient for most. This can be a reasonable choice if you rarely use the internet but occasionally need to use Google Maps or the internet.
• 5GB and 10GB is the most common range. It enables heavy use of social media, Maps, and internet searches. While some streaming is possible, don’t push it and stay away from HD!
• 10GB-50GB: This is probably a cap you should be looking in if you stream while you’re out and about, use maps frequently, or generally lead a data-intensive lifestyle. Keeping your usage to around 50GB might keep your bills within reach.
• 50–100GB: You’ll need to be a serious data drainer at this point for it to be necessary. Big downloads, HD streaming, mobile app downloads, and working from home.
• 100GB-unlimited: If you live somewhere with a great 4G/5G connection, unlimited data plans can even be a valid substitute for having full broadband. The costs have decreased dramatically over the years. However, it won’t be essential for the majority of people.