I had a laptop set up in the boat years ago with gps and mapping software... It worked but was a royal pain. I bought a used lowrance plotter sonar unit for $250 and never looked back... smaller screen, black and white, less features, and SOOOOO much simpler to use, waterproof, doesn't fall off of the dash, doesn't have to boot up, uses less power to run, and built in sonar.
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