Garmin GPSMAP 923 Non-Sonar w/Worldwide Basemap

Description

The Garmin GPSMAP 923 non-sonar is a 9-inch marine chartplotter with a 1280 x 720 IPS touchscreen, Garmin Marine OS, Worldwide Basemap, and external network sonar support through GSD or GCV modules. NMEA 2000, NMEA 0183, J1939, Garmin Marine Network, WiFi, Bluetooth, and ANT+ provide broad connections in a compact unit. This version does not include built-in sonar processing.

Key Features

• 9-inch WSVGA IPS touchscreen – Provides a compact chart display for smaller coastal boats and cruisers.
• 1280 x 720 resolution – Shows useful chart and navigation detail in a manageable format.
• External network sonar support – Allows expansion through compatible GSD or GCV sonar modules.
• Worldwide Basemap – Provides basic global reference mapping, while detailed regional charts are separate.
• NMEA 2000, NMEA 0183, J1939, Garmin Network, WiFi, Bluetooth, and ANT+ – Supports marine, engine, wired, and wireless connections.

Who Is This For?

This model suits small cruisers, center consoles, sailboats, and owners who need a compact Garmin chartplotter without internal sonar. It is useful when sonar is already handled by an external Garmin module or a separate networked system.

It is not ideal for buyers seeking an all-in-one fishfinder, because this is a non-sonar chartplotter and external GSD or GCV hardware is required for sonar. The Worldwide Basemap also does not provide detailed regional chart coverage.

Compatibility

Confirmed compatibility includes external GSD and GCV network sonar modules, Worldwide Basemap, Navionics+ compatibility, NMEA 2000, NMEA 0183, J1939, one Garmin Marine Network port, WiFi, Bluetooth, and ANT+. The supplied information does not identify specific radar, autopilot, or third-party sonar compatibility. No named incompatible system was provided; verify Garmin module and network requirements before installation.

Technical Specifications

• Brand: Garmin
• Model: GPSMAP 923 non-sonar, 010-02365-00
• Display: 9-inch WSVGA IPS touchscreen
• Resolution: 1280 x 720 pixels
• Sonar: External network sonar only through GSD/GCV modules
• Mapping: Worldwide Basemap, Navionics+ compatible
• Networking: NMEA 2000, NMEA 0183, one Garmin Marine Network, J1939
• Wireless: WiFi, Bluetooth, ANT+
• Operating voltage: 10-32 VDC
• Warranty: 2-year standard warranty

Warranty & Support

Garmin provides a 2-year standard warranty. The supplied specifications do not state warranty exclusions or service procedures.

The GPSMAP 923 non-sonar is the compact chartplotter choice for buyers who do not need sonar built into the display or who already have a networked sounder. Its trade-off is clear: it requires external GSD or GCV hardware for sonar and detailed charts must be added beyond the Worldwide Basemap. Choose it for a clean chart-focused installation, not a complete fishfinder package.