The Garmin GPSMAP 1623xsv provides a 16-inch Full HD IPS touchscreen with built-in 1kW CHIRP, UHD ClearVü, UHD SideVü, and a Worldwide Basemap. No transducer is included, but NMEA 2000, J1939, two Garmin Network ports, and WiFi support a large connected marine electronics installation. This model is suited to offshore boats and multi-display helms where a large screen is useful.

Key Features

- 16-inch Full HD IPS touchscreen – Provides a very large workspace for charts, sonar, and split-screen data.
- 1920 x 1080 resolution – Shows detailed navigation, mapping, and fishfinding information.
- 1kW CHIRP, UHD ClearVü, and UHD SideVü – Supports conventional and scanning sonar with suitable hardware.
- Worldwide Basemap – Provides basic global reference mapping, but detailed regional charts are not included.
- NMEA 2000, J1939, two Garmin Network ports, and WiFi – Supports marine, engine-data, wired network, and wireless connections.

Who Is This For?

This unit suits large offshore fishing boats, commercial-style helms, coastal cruisers, and multi-display installations where a 16-inch screen can be viewed comfortably. Its Full HD display is useful when chart, sonar, and system data must remain visible together.

It is not ideal for a small console or buyers seeking a complete ready-to-fish package, because no transducer is included and only a Worldwide Basemap is listed. A smaller GPSMAP is easier to install where helm space is limited.

Compatibility

Confirmed interfaces include NMEA 2000, J1939, two Garmin Network ports, WiFi, 1kW CHIRP, UHD ClearVü, UHD SideVü, and Worldwide Basemap operation. The supplied information does not identify specific transducer models, NMEA 0183, radar, autopilot, or third-party chartplotter compatibility. No named incompatible system was provided; verify Garmin network, chart, and transducer requirements before installation.

Technical Specifications

- Brand: Garmin
- Model: GPSMAP 1623xsv, 010-02368-03
- Display: 16-inch Full HD IPS touchscreen
- Resolution: 1920 x 1080 pixels
- Preloaded charts: Worldwide Basemap
- Built-in sonar: 1kW CHIRP, UHD ClearVü, UHD SideVü
- Transducer: Not included
- Networking: NMEA 2000, J1939, two Garmin Network ports, WiFi
- Warranty: 2-year limited warranty
- Origin: Made in Taiwan

Warranty & Support

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

The GPSMAP 1623xsv is the Worldwide Basemap alternative to the charted GPSMAP 1643xsv, retaining the 16-inch Full HD screen, 1kW sonar platform, and broad Garmin networking. The trade-off is the lack of detailed regional charts and a transducer, so both chart and sonar planning remain with the buyer. Choose it for a custom large-vessel installation where chart coverage will be selected separately.