To be fair, VZW does market their mmwave service as 5G UW (Ultra Wideband) I was confused, too
Jea, that's marketing mumbo jumbo.
The Ultra Wideband that the P6 Pro has is a new standard, just like NFC, Bluetooth or WLAN. It's designed to offer a similar experience like NFC (close contact data transmission), but offers much higher data speeds (MB/s instead of kb/s). As of now it's relatively exclusive, since only a couple High-End phones support this (IPhones Max, Samsung Ultra, Pixel 6 Pro...) and on the other side there's almost no usecase (yet). Beyond a couple of industry operations (those ones have specific and special equipment, so they don't use phones) only BMW offers this tech to unlock a couple of their higher tier cars, so it's a technology that is only usable for a couple hundred/maybe thousand people on planet earth right now.
In the future, this tech might be used for identification (there's talk about ID on phone or whatever), but those plans will not come to bear earlier than in 2-3 years. UW - as of now - is something nice for a spec list, but in real world usage, it's almost useless.
