AT&T is preparing to launch commercial 5G mobile service using millimeter wave spectrum and the NETGEAR Nighthawk 5G Mobile Hotspot.
AT&T says the device is the first standards-based mobile 5G device in the world able to access a live millimeter wave 5G network.
At least in principle, the use of a 5G hotspot, on a millimeter wave network, with retail pricing plans that are comparable to a fixed network plan, allow a mobile 5G network to compete with fixed networks.
As a practical matter, that might not happen in ways that make mobile 5G an effective substitute for fixed service. As has been the case for 4G, some users will find 5G a functional substitute; others will not. In the 4G era, perhaps 20 percent of U.S. households are mobile only for internet access.
And at least some observers believe such mobile substitution could reach 30 percent to 40 percent by about 2022.