> The real benefit of 5G for the phone networks is the higher frequencies means the signals don't penetrate as well, cover a lot smaller of an area which means

> The real benefit of 5G for the phone networks is the higher frequencies means the signals don't penetrate as well, cover a lot smaller of an area which means they can have more radios - to provide more capacity without overlapping. Nope, density is manageable in most frequency ranges. The advantage to the mmwave frequency bands is that they have larger channel sizes (up to 400MHz), which allows for faster speeds.