https://www.cnet.com/news/5g-nokia-phones-unlikely-to-arrive-until-2020-but-more-us-phones-are-on-the-way/

"We believe that this year is literally the first introduction round, so we think probably early next year is a good time for a mass-market 5G rollout in the key markets where we see an opportunity like Western Europe and the US," said Seiche.

As the next generation of network technology, 5G is set to improve capacity, latency and speed of mobile networks, offering opportunities for the growth of smart cities, autonomous vehicles and virtual and augmented reality. But those same qualities mean it's also set to take the mobile internet experience people enjoy today to the next level, and the introduction of the technology this year means that it's big news at MWC 2019.