I’m thinking about adding a GPS compass to my 32’ racer-cruiser sailboat over the winter.  The two short list options are a Furuno SCX-20 and Simrad HS75.  However, I’m having a hard time making an apples-to-apples comparison between them.  In most respects the SCX-20 seems like a superior device; however, it costs half what the HS75 does.  My best guess is that the price difference has to do with the integrated gyro in the HS75, but as I said, that’s a guess.

Can anyone help me understand the differences between these devices and their likely performance?  For what it’s worth most of the electronics on my boat are B&G (Novico) but my understanding is that brand shouldn’t matter too much here.