I was not aware that they had two models. It does not say Saltwater on it. I used it on a 22' Grady White out in the sound. It was able to identify individual fish up to 600 feet deep, and the zoom works really good. It has more power than most units in that price range. I won a $1,500 color unit in a fishing tournament, so that's what I am using now. Otherwise I would not be selling the X-85. Marc