Don't get confused over 5G. 5G is just a method of Transmitting and Receiving in the 5G Frequency range. 4G is just a lower Frequency range and that is the main difference.
5G can operate on a new, high-frequency spectrum called a millimeter wave (mmwave.) This operates on wavelengths between 30 GHz and 300 GHz, in comparison to the 4G LTE's wavelengths of under 6 GHz.
30/6 means 5X Faster basically there are other factors 300/6 means 50X Faster basically there are other factors
The 30 Ghz travels much further than the 300 Ghz, the 6 Ghz travels a lot further than both but is slower.
It does NOT mention Cellular anywhere. Because it won't be using Cellular towers. It is designed for transmitter/receivers within a company or premises limited to it's own area. It will be super fast and reliable and cost effective when a lot of data is involved. Otherwise a simply Wi-Fi or Cellular or Even just Ethernet would work fine.
The VOS 5G Dongle is completely different as in it is NOT limited to such a limited area and will work anywhere a cell signal is available. By the way the number of Cell Towers are continuously growing making the VOS even better as time goes on!