Despite the fact that we haven't received yet all the information about iPhones that will have their premiere in 2019, it seems that the real breakthrough will take place in the next series of phones that will appear on the market a year later. Probably then we will get three phones of changed sizes - it is said that for 2020 Apple is preparing devices with screens which will have diagonals 6.7 inches, 6.1 inches and 5.4 inches. Interestingly, probably all three versions of phones will support 5G connectivity.
Such a move would be forced on Apple by the market situation, because a lot of cheaper Android phones in 2020 will be offering 5G support. Therefore, probably all three iPhones that will reach the store shelves in 2020 will support this type of connection. Earlier, it was said that only the two most expensive configurations will support 5G. In addition, it is possible that we will see major changes in the design of the devices, but so far all this information hasn't been confirmed by the manufacturer.