The HELIX 8 G4N series includes fish finder and chartplotter units released by Humminbird in the second part of 2020. The HELIX 8 CHIRP G4N is one of the most basic units of the series. As opposed to the older HELIX 8 CHIRP GPS G3N, this particular model has new features such as Wi-Fi, built-in NMEA 2000, and is compatible with the new CoastMaster charts. For reference, this is … [Read more...] about Humminbird HELIX 8 CHIRP GPS G4N