Ever happened to you that you are in an urgency and the phone network doesn’t come? Nothing annoys more than that. Are you thinking about switching to O2 or just want to check how good your O2 mobile signal is in your area? You’re in the right place. In this guide, we’ll show you how to check O2 mobile network coverage, explain why O2 is shutting down its 3G network, and share what real users are saying about O2 mobile services. We’ll also go over the pros and cons of O2 mobile to help you make an informed decision.
How Can You Check O2 Network Coverage in Your Area?
To find out what kind of signal you’ll get from O2, whether it’s 2G, 4G, or 5G you can use the O2 Network Coverage Checker. It’s a free and easy tool:
Steps to Check Your O2 Coverage:
- Go to the O2 Coverage Checker.
- Enter your postcode or location.
- Click on “Check Coverage”.
- You’ll see a map with coloured zones showing where 2G, 3G (while still available), 4G, and 5G signals are strong or weak.
This helps you know if you’ll get good service at home, at work, or even on your daily commute.
Important: O2 Is Shutting Down Its 3G Network
Like other UK mobile networks, O2 is now switching off its 3G network. This means:
- O2 is focusing on faster 4G and 5G networks.
- Old phones that only use 3G will stop working for internet access soon.
- Calls and texts will still work over 2G, but for internet, you’ll need a 4G or 5G capable phone.
What should you do?
- Check if your phone supports 4G or 5G.
- If not, consider upgrading to a newer device.
- Use the coverage checker to make sure your area has good 4G or 5G service.
What Do Real Users Say About O2 Mobile Services?
Here’s what many users are saying about O2 in 2025:
What People Like:
- Reliable 4G and growing 5G coverage in most towns and cities.
- Great data rollover plans and flexibility.
- O2 Priority rewards: exclusive deals, concert tickets, and offers.
- EU roaming still included in some plans.
Common Complaints:
- Rural areas may have weaker signal, especially for 5G.
- Some users report slower speeds during busy times.
- Customer service can be hit or miss depending on how you contact them.
Pros and Cons of O2 Mobile – Should You Choose It?
Here’s a quick breakdown to help you decide:
| Pros | Cons |
| Wide 4G coverage | 5G still limited in rural areas |
| O2 Priority rewards | Some users report slow data speeds |
| EU roaming included on many plans | 3G shutdown may affect older devices |
| Flexible SIM-only deals | Not always the cheapest provider |
Final Thoughts
If you’re with O2 or thinking about joining, it’s smart to first check your O2 mobile coverage using their official checker. With the 3G shutdown underway, make sure you have a 4G or 5G-ready phone to avoid losing mobile internet access especially during important calls.O2 remains one of the UK’s most well-known mobile networks, offering strong coverage in cities, rewards through O2 Priority, and decent plan flexibility. But like any provider, your experience depends on where you live so use the checker before you sign up. I think this feature is a really nice way to check whether the provider is a good choice for you or not.
