5G networks jump links
Whichever 5G network you choose, they all offer something a little bit different in terms of coverage and how they're planning on rolling out 5G.
One area a lot of the networks have in common is the selection of phones - especially between the UK networks where the offering is very similar.
Let's run through each of the key US and UK networks one by one and check out where they are in terms of their 5G availability.
US 5G networks
AT&T's 5G network rollout is not only limited, but it is only offering Samsung's S10 5G at the moment and only to business customers at that.
Instead, it has been putting more effort into "5GE" - essentially some clever branding for 4G LTE Advanced technologies. That's not great because it's confusing for consumers and may backfire long-term.
The network has a handful of cities covered by mmWave deployments and says it will expand to 30 US cities by the end of the year.
Sprint may not be using mmWave for faster speeds (yet), but its focus on mid-band coverage could pay short term dividends in terms of wider coverage. The network also has a decent selection of phones available.
Speeds shown so far are still decent, while there are several unlimited plans to choose from that include various extras such as Amazon Prime and Tidal access.
Sprint will also be providing 5G service to Google Fi in due course as well, though there are some question marks over ongoing rollout due to Sprint's proposed merger with T-Mobile.
T-Mobile has rolled out 5g in selected US cities - New York, Los Angeles, Las Vegas, Dallas, Cleveland and Atlanta. It's offering the Samsung Galaxy S10 5G as its sole 5G phone for now.
There's currently a bit of a cloud under T-Mobile's 5G rollout; a proposed merger with Sprint is undergoing a legal challenge. The merger would give its 5G network a boost since it only has a mmWave network at present - good in urban areas, but offering little prospect of widespread overage. Sprint, on the other hand, boasts low-band spectrum needed for a wider rollout.
However, if the merger goes ahead it will be costly - the combined company will need to sell off some spectrum to Dish to ensure there is still a fourth competitor in the market.
Verizon was the first US network to launch 5G and its mmWave-based network is now live in 10 cities, albeit with very limited coverage in each location.
The company is planning on launching in another 20 cities by the end of the year and is targeting much better service in 2020 - it has talked about 50 percent coverage.
Verizon is offering various 5G handsets on unlimited 5G tariffs which normally cost an extra $10 a month but are premium-free for a limited time.
UK 5G networks
Probably the furthest ahead of the UK networks, EE has the widest phone offering in the UK. It's initially launched 5G in six cities at the moment, but 5G will be coming to 10 more by the end of 2019.
Both EE's business and consumer 5G plans are available with unlimited data and anytime upgrade. All EE's 5G phones are available on EE 5G Smart Plan with unlimited minutes and texts, too.
BT Mobile runs as an MVNO on EE's network (BT now owns EE) and BT will also boast a 5G offering in the coming weeks.
O2 hasn't yet launched a 5G network, but it is imminent and it will roll out 5G in the UK's capital cities first - London, Cardiff, Edinburgh and Belfast. It's aiming for around 20 locations by the start of 2020 and 50 by next Summer.
O2 is already offering 5G handsets - indeed, it has a very similar selection of handsets to the already-launched Vodafone 5G network. Indeed, it has more than that in common with Vodafone - O2 shares various elements of network infrastructure with it.
O2 is offering several unlimited tariffs which you'll be able to move across to 5G when it is available.
Three is only offering a London-based 5G network at present - and it's all based around home 5G broadband in limited areas.
The network will be rolling out to a bunch of UK towns and cities in the coming weeks though - we believe Three's main 5G launch will take place during October or November and at that point over 20 locations will be covered.
Three is already offering four 5G phones so customers can be ready when its 5G network goes live.
Vodafone might not have been first to launch 5G in the UK, but it set the cat amongst the pigeons when it revealed unlimited 5G tariffs alongside a 15 city rollout.
While Three has offered unlimited tariffs for a long time, it was something of a departure for one of the big networks - and EE and O2 have now had to follow suit.
Vodafone clearly wants to position itself as the challenger network to EE (rather than O2) and is also offering a decent selection of 5G phones in addition to a combined home and mobile broadband offering called Vodafone Together.