Blazing fast 5G speeds are here but they aren’t all that useful on the new 5G smartphones. WSJ’s Joanna Stern packed up a motor home to see if the connection could power all her connected gadgets, including laptops, printers, Xboxes and camera-equipped doorbells.

2020 is the year 5G will finally arrive for some, but will it live up to the hype?

Part of the problem is that 5G isn’t one thing, it’s a collection of different technologies, and various cell providers are focusing on different improvements that can radically change the experience of 5G.

Engadget explains.