Apple won't be the first major vendor out of the port with a 5G smartphone, but it can have a comprehensive setup when it's ready. The historically accurate analyst Ming-Chi Kuo now expects all three iPhones from 2020 to support 5G, not just the two top models. Apple will be helped by falling 5G hardware costs (you can see limited 5G support on $ 250 Android phones, said Kuo), more resources thanks to the Intel modem business acquisition and expectations of both carriers and customers. At that stage, 5G can be treated as a given in the iPhone's price range – and carriers may not offer so many subsidies without 5G support.
Source: MacRumors AppleInsider