Fixed DR and mobile DR

What is the difference between fixed DR and mobile DR? In a literal sense, the difference between fixed DR and mobile DR is that mobile DR can move flexibly and conveniently, while fixed DR can only be fixed at a certain position and cannot be moved. Everyone knows this at a glance.
Fixed DR, the appearance looks large, the weight is heavier, because it is inconvenient to move, it can only be used in a certain position.
Mobile DR can only move, which also has certain requirements for its shape and weight, such as lighter weight and smaller volume. This will save time and effort to move more conveniently. It is precisely because of its small size, light weight, and convenient mobility that it is loved by major hospitals and clinics, and it is also a good helper for out-of-office physical examinations.