The Helix 7 CHIRP SI G4 fishfinder with chart plotter features CHIRP Side Imaging, CHIRP Down Imaging, Dual Spectrum CHIRP sonar, AutoChart Live, Internal GPS and Humminbird Basemap built-in. An upgraded high definition 7 in. display will give you the best view of the many preloaded split-screen view options so that you’ll never miss a fish.