Garmin GPSMAP 820 Chartplotter

Overview Garmin GPSMAP 820 Chartplotter

Garmin GPSMAP 820 Chartplotter is a dedicated marine chartplotter built around an 8-inch display for dependable route planning and helm visibility. The 800 x 600 Pixels (SVGA) screen keeps charts, waypoints, and route information easy to read in everyday use.

It combines 10 Hz High-Sensitivity GPS/GLONASS with Worldwide Basemap and NMEA 2000, NMEA 0183, Garmin Marine Network so the unit can serve as a practical navigation hub for coastal cruising, sailing, or fishing boats. The keyed interface also remains easy to manage when conditions are wet or the boat is moving hard.

Key Features

• Display clarity: Uses an 8-inch display with 800 x 600 Pixels (SVGA) so sonar, charts, and system data remain easier to read from the helm.
• Positioning: 10 Hz High-Sensitivity GPS/GLONASS keeps chart position and waypoint updates responsive for navigation and return-to-spot accuracy.
• Chart support: Worldwide Basemap supports route planning and local detail without forcing a generic navigation setup.
• System integration: NMEA 2000, NMEA 0183, Garmin Marine Network allows the unit to share data with compatible marine electronics and sensors.
• Wireless support: Wi-Fi (BlueChart Mobile Compatible) expands access to compatible mobile or remote helm functions where supported.
• Radar compatibility: Supports All Garmin Marine Radars for stronger situational awareness in reduced visibility or busy waterways.

Applications

This chartplotter suits powerboats, sailboats, and fishing vessels that prioritize dependable navigation with tactile control at the helm. The keyed interface is practical in wet conditions or rough water where precise button input can be easier than touchscreen operation.

It is a strong option for coastal passage making, everyday route planning, and adding radar support to a navigation-focused console without moving into a full sonar combo package.

Specifications

What’s Included

• Garmin GPSMAP 820 with worldwide basemap
• Power/data cable
• Bail mount kit
• Flush mount kit
• Protective front cover
• Documentation and manuals