The next generation of mobile internet has gone on sale for the first time in Wales. 4G is said to be five times faster than the existing 3G service - which currently drives smartphones.
Cardiff is one of 11 trial sites across the UK. But with many other parts of Wales still struggling to get an internet connection of any sort, our reporer David Wood has been looking at how useful it will be.
Up to 98 percent of Wales' population will be able to receive super-fast 4G mobile broadband coverage by the end of 2017.
The announcement, which will deliver much faster mobile data speeds to phones and other wireless devices, was made by the media regulator, Ofcom today at the Royal Welsh Show in Llanelwedd.
Wales will also have its own national target for mobile broadband coverage to benefit people in rural areas.
Ofcom announced it is to auction the bandwidth with bidding beginning early next year.
The auction will offer the equivalent of three quarters of the mobile spectrum in use today – some 80 percent more than released in the 3G auction which took place in 2000.