LTE Advanced (LTE+) is the sweet spot, they have nearly all the bells and whistles of 5G like CA, MIMO, etc. 5G is over-engineered, it's more like LTE advanced with new frequency, beamforming and some new channel coding while consuming much, much more power both on your cell-phone and cell-towers. The speed and latency benifits are almost negligible because the metrics advertised by telecom industry are measured only between the SA 5G devices and 5G towers, in reality the latency and bandwidth are deciede by the hops all the way to the IDC (unless the so-called "edge-computing" is a thing yet they aren't), so the 5G promises may never happen.

This combined US/EU boyccott of questionable but cheap suppliers like Huawei makes the cost of 5G not worth it.