4G is more spectrally efficient than 3G, just as 5G is more spectrally efficient than 4G . Each generation delivers more data per hertz than the previous one. 3G works at frequencies up to 2.1Gigahertz, 4G up to 2.5Gigahertz and 5G can be up to 95 Gigahertz. That is why there is a lot of hype around 5G.
Read moreIs 5G faster than 1G?
5G is shorthand for fifth generation, and it promises cellphone speeds as much as 100 times faster than the norm today, 4G LTE . Gigabit internet (so named because data are transmitted at up to 1 gigabit or 1,000 megabits per second) also promises that kind of speed — about double that of the fastest cable internet.
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