Read our reviews of every UK mobile network in 2019 and guides to the best providers for roaming, data rollover and more. SIM Sherpa is your trusty guide.
If you know you're already interested in a particular network, read our review below by clicking on the logos:
If you have two mobile networks you're considering joining, use our 'versus' guides to find out the differences and which is best for you:
If you know you want the next provider you join to be good at particular things, read our series of ranking articles below:
✔ Use your phone abroad for freeBest roaming scheme
Now that all UK mobile networks have to offer free roaming in the EU as part of their pay monthly plans, we look at which ones go above and beyond the legal minimum.
In this guide, we rank each mobile network for going abroad and reveal the providers and plans that give you inclusive roaming in other worldwide countries outside Europe.
✔ Keep unused data for future useData rollover
Is it fair that you lose data at the end of each month if you've not already used it? Some of the mobile networks are saying no it's not.
Their solution? Data rollover plans that let you keep anything you've not used at the end of the month. Which networks offer it and whose scheme is the best? Our guide reveals all.
✔ Use your phone where there's no mobile signalWiFi calling
In recent years, more and more mobile networks and devices have started to support so-called WiFi calling. But some providers still don't offer it, and others have big limitations.
We look at what WiFi calling means, which networks offer it, answer your frequently asked questions and rate which provider's scheme is the best out of the lot.
✔ Share data and get discountsShared family plans
We're seeing more mobile networks offering plans designed for more than one person, typically whole families or groups of friends.
But what's the point in shared plans? Is it better to get a discount or be able to share your data. We discuss it all in our guide.
✔ The included apps vary per mobile networkFree streaming data
Streaming videos and music uses loads of data and we check our social media updates constantly throughout the day. All that can use up data pretty fast.
But now some selected networks are saying you can use particular services without it using up your data. Who are the networks and what services can you use? Our guide has the answer.
✔ Some networks give away free WiFiFree WiFi hotspots
If you've bought a plan without a huge amount of data, connecting to free WiFi when you're out and about can save your mobile data for when you really need it.
Our comprehensive guide walks you through each of the mobile networks that offer access to free WiFi hotspots in public places and ranks the ones we think are best.
Useful link: See mobile networks with free WiFi access
✔ We rank the networks with unlimited dataUnlimited data plans
Nobody likes to think they could be on the line for a big bill if they use more data than their plan contains. So lots of people are looking for unlimited data.
The problem is not many mobile networks offer it. And the ones that do sometimes have sneaky catches. We rank all providers and find out which plans are truly unlimited.
✔ Some networks give away free WiFiBest indoor signal
Boasting about their UK-wide geographical coverage is a favourite of mobile networks. But what about when you take your phone inside and find you can't make calls?
We look at all the providers and show you how to test whether thir signal will be any good inside buildings. And what you can do about indoor blackspots.
Useful link: Best networks for avoiding bad signal inside
✔ The Sherpa people have been guides for centuries
At SIM Sherpa, our guiding principle has always been to to be just like the real mountain sherpas; by being your trusty guide to everything in the world of mobile phone contracts.
That's why each of our mobile network reviews have been carefully put together by expert authors, who have themselves worked in the mobile phone industry, to bring you qualified insight from inside the providers.
We know the ins and outs of how deals work, what the catches are and recognise a real benefit when we see one. We sift through the marketing spiel to get you to the key facts you really want to know.
As we improve and re-write our reviews, we're constantly on the look out for new developments and finding the negative points as well as the good stuff.