5G, in many ways, is a huge improvement over 4G.
Easier to quote an article than to explain it:
"
According to the standards body, 3GPP, the radio frequency spectrum used by
LTE networks ranges from 700 MHz to 2.7 GHz. In theory, LTE peak data rates
are 75 Mb/s for the uplink and 300 Mb/s for the downlink when using a
multiple-input multiple-output (MIMO) antenna system, also referred to as
spatial multiplexing.
The frequency bands for 5G networks come in two sets. Frequency range 1 (FR1)
is from 450 MHz to 6 GHz, which includes the LTE frequency range. Frequency
range 2 (FR2) is from 24.25 GHz to 52.6 GHz. The sub-6 GHz range is the name
for FR1 and the mmWave spectrum is the name for FR2.
In theory, the peak data rates for a fully mature 5G network are 20 Gb/s downlink
and a 10 Gb/s uplink, as standardized by the International Telecommunications Union."
https://www.sdxcentral.com/5g/definitions/what-is-5g-spectrum/
With the much higher freq. of 5G, it can move data much faster
than 4G, or LTE. Due to the high freq. of mmWave, the wireless
nodes (cell sites) must be closer together, meaning more cell sites
are needed.
So, if the infrastructure is there, a 5G phone can send and receive
data much faster than a 4G, and is much more suitable for streaming
data such as movies, live sports, etc.
Just 10 years ago, test instrumentation was pretty much limited to a max. freq. of 40 GHz,
but now with 5G operating at up to almost 53 GHz, the test instrument manufacturers
have had to improve/upgrade their equipment to accommodate the mmWave bands.
