Humminbird sells many fishfinders on the market today, and the Helix 5 SI GPS works and is recommended, says FishFinders.info. Humminbird’s PiranhaMax models 176i and 196ci are purported to be good fishfinders for depths between 100 and 200 feet, and they provide limited GPS capabilities, according to FishFinderSource.com.
Humminbird's current product lines feature technologies such as touch screens, live cartography mapping, Bluetooth remotes for marking waypoints and adjustable sonar sensitivity. As of 2015, the company has models with sonar capable of penetrating 10,000 feet. The sonar element of a fishfinder feeds information into a display to provide the user with suspected fish locations.