Garmin GPSMAP 478 Portable GPS Chartplotter

Overview Garmin GPSMAP 478 Portable GPS Chartplotter

Garmin GPSMAP 478 Portable GPS Chartplotter is built for users who need one navigation device for both marine and road travel. It comes preloaded with U.S. marine charts using BlueChart g2 technology and City Navigator NT street maps for North America, so it is ready for use without additional downloads.

The unit is designed to move from boat to vehicle with less setup time. Optional weather and sonar accessories expand its role further for mariners who want weather awareness or depth capability from a portable GPS chartplotter platform.

Key Features

• Portable dual-use design: The unit is intended for both marine and automotive navigation rather than being fixed to one installation.
• Preloaded marine and road mapping: BlueChart g2 marine charts and City Navigator NT road maps support both water and land use.
• Automatic routing with voice guidance: Road navigation is easier when using the preloaded street-level map data and POI database.
• Optional weather integration: A compatible GXM 30 antenna can display weather data and XM Satellite Radio on the screen.
• Optional sonar support: The GPSMAP 478 can be paired with the GSD 21 remote sounder for sonar capability.

Applications

A good fit for trailer boats, mobile skippers, and users who regularly move between marine and automotive navigation. The portable format is practical for small craft, backup navigation, and mixed-use travel.

It is also useful for owners who want one unit that can cover coastal runs, inland trips, and road travel with minimal equipment changes.

Specifications

What’s Included

• GPSMAP 478 unit
• Preloaded U.S. marine charts
• Preloaded North America road maps
• Marine mount
• Automotive kit