5G smartphones are coming but don’t let the hype fool you into jumping on the train before you need to get aboard. Ron Amadeo on 5G and the mmWave it depends upon:
mmWave has worse range and worse penetration compared to LTE. A mmWave signal can be blocked by buildings, trees, and even your hand. MmWave doesn’t work well in the rain or fog, and the ~60GHz chunk of this spectrum can actually be absorbed by oxygen. That’s right—a slice of mmWave spectrum can be blocked by the air.
That’s the bad. Any good?
mmWave sounds like a terrible chunk of spectrum to build a mobile network in until you consider two key points: the higher-frequency means mmWave has plenty of bandwidth and low latency if you can get it, and most of all, the spectrum is available.
That’s the good. Any more bad?
mmWave isn’t being used for much right now because it is such a pain in the butt to work with.
The public internet isn’t as fast as 4G LTE now. When 5G finally gets here and becomes as ubiquitous as 4G LTE is now, it could be a game changer, but it won’t happen next year, and not likely for a few more years after that.