Garmin GPSMAP® 1643xsv 16" Multifuncion display with SideVu, ClearVu and Traditional CHIRP with Garmin Navionics+ Maps. Get built-in Ultra High-Definition SideVu and ClearVu scanning sonars with vivid, high-contrast color palettes to help distinguish fish from structure. The GPSMAP X3 chartplotter series also supports 1 kW traditional sonar capabilities. With its added processing power and slimline design featuring edge-to-edge glass, it's easy to fit this plotter in a wider range of dash configurations. High-resolution IPS displays offer improved sunlight readability and visibility from any angle.