From the technical point of view, High Five® and High Five® Signature are identical - only the material differs here.
With the High Five® Signature you get a product in a zinc housing and in the basic version High Five® a hard-wearing plastic product.
High Five® C also comes in a zinc housing, but in addition to the charging function it also has a data transfer function between USB-C and USB-C with a speed of 480 Mbit/s. The USB-C and USB-C can be connected to each other via USB.