The HELIX 5 CHIRP SI GPS G2 with our new user interface and operating system, features ​a brilliant 800H x 480V, 5" 256 color display with backlight. CHIRP Side Imaging/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 for saving waypoints. Maximize your angling experience with the Humminbird HELIX 5 CHIRP SI GPS fishfinder GPS system.