The HELIX 5 DI GPS features a brilliant 800H x 480V, 5" 256 color display with backlight. Down Imaging and DualBeam PLUS sonar with 4000 watts PTP power output, Precision Internal GPS Chartplotting with built-in UniMap cartography with a micro SD card slot for optional maps or saving waypoints along with a gimbal mounting system. Maximize your angling experience with the Humminbird HELIX 5 DI GPS fishfinder GPS system.