The difference between portable mobile DR and fixed DR

Today, a customer in Harbin, Heilongjiang, inquired about a portable mobile DR. The customer said that he had used a 10 mA X-ray machine to take pictures of his limbs.
Why do many clinics choose portable mobile DR now? Since the portable mobile DR can be moved, it has certain requirements for the appearance and weight of the device, such as a smaller appearance and lighter weight. It is relatively convenient to move.
The fixed DR usually refers to an X-ray machine with a relatively large appearance and a heavy weight, because it is inconvenient to move and can only be used in a certain position.
Therefore, more users choose portable mobile DR.