Chart through the murkiest of waters with the Humminbird 788ci fishfinder that is preloaded with Navionics Charts of the four Navionics regions in the US. Fully loaded with advanced technology, this Humminbird Combo fishfinder helps you capture a large haul in no time. Equipped with a 5-inch diagonal screen with 640V x 640H pixels resolution, this Humminbird marine navigator displays the fish in brilliant colors and clarity. Thanks to the DualBeam PLUS technology, the Humminbird 788ci is a pro at locating fish even at a depth of 1500 feet. The SwitchFire Sonar in this Humminbird Combo fishfinder allows you to select your underwater view with all details. The Tilt & Swivel Quick Disconnect Mounting System of this Humminbird marine navigator lets you mount it wherever you want.