The chartplotter has an 10 inch colour SVGA display and keyed control. The GPSMAP 1020 comes preloaded with worldwide basemap. With its built-in 10 Hz GPS/GLONASS receiver, the GPSMAP 1020 provides position and heading updates 10 times per second. The chartplotter has NMEA 2000® support for autopilot capability, engine data, SiriusXM®, Weather and more. GPSMAP 1020 Features: GPS Chartplotter, 10"" Color SVGA Display, Internal 10Hz GPS/GLONASS Receiver, Dual SD&trade Data Card Slots - Additional Data Storage, NMEA2000® Support - Autopilot Capability - Engine Data - SiriusXM® Weather, Preloaded Software - Worldwide Basemap, Supports Garmin Marine Radar, - For BlueChart® Mobile, Compatible w/ - LakeV &trade HD Ultra - BlueChart® G2 & G2 Vision, Waterproof to IPX7 Standard"