top of page



8” colour SVGA display with keyed control, with BlueChart® g2 Vision and BlueChart® g2 mapping. High-sensitivity internal 10 Hz GPS/GLONASS receiver. Compatible with LakeVü™ HD Ultra, BlueChart® g2 and BlueChart g2 Vision®. Supports all Garmin marine radar


The 8” colour GPSMAP 820 keyed chartplotter has a preloaded worldwide basemap. The built-in 10 Hz GPS/GLONASS receiver updates your position and heading 10 times per second.

With NMEA 2000® support for autopilot capability, engine data, SiriusXM® Weather and more, the GPSMAP 820 is compatible with LakeVü HD UltraBlueChart g2 and BlueChart g2 Vision. It also supports all Garmin marine radar.

For even more functionality, wirelessly connect to Apple® (mobile digital device) for BlueChart® Mobile. The chartplotter includes 2 SD™ data card slots, allowing for gigabytes of storage. It can be flat, flush or bail mounted.


Physical & Performance

Physical dimensions: 29.3 x 18.8 x 7.4 cm

Weight: 1.6 kg

Water rating: IPX7

Display type: SVGA display

Display size: 16.2 x 12.1 cm, 20.3 cm diagonal

Display resolution: 800 x 600 pixels

Power consumption: Max power usage at 10 Vdc: 14 W

                                      Typical current draw at 12 Vdc: 1.1 A

                                      Max current draw at 12 Vdc: 3.2 A

Antenna: Internal with external connection

Mounting options: Bail, flat or flush

Receiver:10 Hz high-sensitivity

Garmin Marine Network™ ports: 1

bottom of page