https://www.cnet.com/news/galaxy-fold-and-mate-x-how-foldable-phones-eclipsed-5g-at-mwc/

Part of the problem is that 5G being "here" doesn't necessarily mean it's here for you. With early coverage being quite sparse, industry experts agree that adoption won't really kick off until late 2019 and into next year. 

"5G radios and phones will be better in 2020," said Frank Gillett, an analyst at Forrester. "Consumers will continue to pay attention to the basics of price, screen size and cameras, with 5G an afterthought until it comes on more affordable phones and without a pricey monthly plan."