What are the differences between a citrus press and a centrifugal juicer?

A Citrus Juicer is a device that squeezes the juice out of a citrus fruit, the fruit must be cut in half before being juiced and most of the pulp stays on the half fruit.

A Centrifugal Juicer will juice harder and whole fruits by spinning them through a fine mesh. This results in pulp build up, usually in a storage device, and also a large amount of juice.