Personal hotspot compared to cell phone hotspot
And most that do have big carriers even give you less hotspot data than they give cell phone data. Personal hotspots have a limit on the number of devices available. Your cell phone's wi-fi antenna is not very strong. So your phone's WiFi is limited to the same number of devices as your hotspot.
The new hotspots are all about the number of devices. Even the Verizon version has limits. The Verizon version is limited to 5 devices.
I think it's going to take some time for the carriers to get their act together.
I have used and have owned the Verizon version of this hotspot. It works well and has a nice screen for navigation. It is not very fast though. It is not a hotspot in the cellular sense.