I own:
Garmin Vivosmart HR (well, not a GpS, actually)
Garmin Streetpilot II (obsolete)
Garmin Nuvi 255w
Garmin Nuvicam

I also own a Mazda with an in-dash gps (MZD infotainment thing), I think it's a Navigon, or something... I almost never use it, I like my Cam better.