Previously, it times reported that the iPhone 12 currently being proofed by Changshuo factory in Shanghai has 5g and 4G versions.
There is a view that Apples largest market is in the United States and Europe, where 5g is not fast. So if Apple does not have 4G products, how can it cover the U.S. and European markets? So theres bound to be a 4G version.
In addition, 5g development speed of different countries is not consistent, 4G still has a relatively large market space. If there is a significant price difference between 4G version and 5g version of iPhone 12 series, it is not a more attractive choice for consumers.