
So when your phone says 5G, it's likely still experience 4G LTE speeds. No cellular network in the US has reached 5G mesh coverage yet, save for maybe one city. When you use your phone as a WiFi hotspot, it basically acts as a link from a device you connect to it to the cellular network. But as for being a "boon" this just simply isn't the case.

5GHz WiFi capabilities are available with almost all in-home WiFi routers now, so the capability on the new iPhone is not that surprising. 5G is the 5th generation of cellular networking technology, it utilizes frequency bands above the 6GHz range.

5GHz is a WiFi frequency band that emits from the new iPhone 12. I think there is a giant misunderstanding of what "5G" means and what "5GHz" is.
