The Superjoy has more function buttons on the surface, and (4) programmable Custom buttons for doing whatever you wish. It also has an HDMI output that pulls the RTSP feed from the camera for use with a preview monitor. Also, if you wish to use am ix of serial and IP control The Superjoy can handle that a lot easier than the PT JOY G4.
What is the real difference between the G4 and the SuperJoy? Is the SuperJoy worth the difference in price? Thanks.