Last November BT launched its own 5G services, piggybacking off the 5G already available from BT-owned EE. The problem was that it was being very stingy about which customers could sign up, restricting it to business customers and those who signed up for BT's Halo service. Now, though, everyone can sign up.
Of course you need to be living in an area that actually has 5G coverage from EE, otherwise you'll just be paying more for 4G - and those phone plans are expensive enough already. BT says it has 5G in 50 cities and large towns across the UK, including London, Manchester, belfast, Cardiff, Edinburgh, and all the other places you can check on its 5G coverage checker.
You'll need a 5G phone too, naturally, and like other networks have done BT is making sure you have the right phone. That means you have to get a 5G phone with your plan, and there are currently four to choose from. But with MWC at the end of the month there may well be a larger number of those to choose from very soon.
Right this second you get to choose between the OnePlus 7 Pro 5G, the Samsung Galaxy S10 5G, the Huawei Mate 20 X 5G, and the Samsung Note 10+ 5G. Starting prices range from £50 a month for the OnePlus all the way up to £70 a month for the Note 10+. Naturally the more allowance-intensive plans will cost more than that.
So it's not exactly cheap, though the Samsungs will no doubt drop in price following tomorrow's Unpacked event, so that's even more incentive to hold off a few weeks.