Garmin makes okay fish finders, but I would stick to Garmin for GPS. I had a couple of Garmin Fishfinders in the past, they just didn't show the detail that the lowrance units show, even the smaller lowrance units. They are good at telling the depth, but I struggled picking out fish and grass. I played with the gain and everything trying to find a good picture. I do recall finding some fish with it, but I really enjoy looking at the lowrance units for clarity and detail. Heck even Hank Parker has gone away from Garmin to Humminbird.