It is rumored that perhaps soon Apple will announce the iPhone 12 with 5G cellular capability. What does that mean, you might ask? Here is an article discussing 5G, its capabilities and limitations. Although 5G will be faster than the 4G wireless transmission most of us are probably using now, I, personally, don't care so much for 5G. More cell towers will be needed, closer to one's home, and the 5G signal is easily blocked. But, I suspect it is coming whether I like it or not.
Jim Hamm