The Humminbird Helix 409620-1 GPS Fishfinder features a five-inch widescreen LCD display that supports 256 colors. Its display gives clear images for easy viewing in harsh sunlight and it has a 480 x 800 pixels resolution. This fishfinder has a 4000 W power output. The DUAL Beam sonar lets you search shallow as well as deep water, efficiently. While its SwitchFire Sonar feature lets you filter out noise and show more detail. It is equipped with a microSD card slot for additional maps-storage. This long-lasting device also allows you to find fishes at a 1500-ft depth capacity.