Collection: Garmin Marine

A marine GPS unit provides position coordinates and basic navigation like a waypoint plotter, while a chartplotter overlays your GPS position on detailed nautical charts showing depth contours, hazards, marinas, and channel markers. Most modern Garmin marine units are chartplotters with integrated GPS, offering full chart navigation in addition to position tracking. For serious boating, a chartplotter like the Garmin GPSMAP series is the standard choice.

For offshore fishing, the Garmin GPSMAP 9000 series or GPSMAP 8400 series are the top choices, offering large touchscreen displays, support for Garmin Panoptix LiveScope sonar, and built-in Garmin Navionics+ charting. The Panoptix LiveScope system is particularly valuable offshore, providing real-time sonar imaging that shows fish and structure in live detail. Concord Marine Electronics can help spec the right Garmin setup for your fishing style and vessel.

Garmin radar units are designed to work natively with Garmin GPSMAP chartplotters and will not integrate directly with Raymarine or Furuno displays. However, radar data can be shared across a vessel's NMEA 2000 network to other compatible instruments. For full overlay and control functionality, Garmin radar is best paired with a Garmin MFD.
See our Garmin vs Raymarine guide for a full comparison

Purchasing Garmin marine electronics from an authorized dealer like Concord Marine Electronics ensures your warranty is valid, your unit is a genuine product, and you have access to Garmin's full factory support. Authorized dealers also provide pre-sale guidance on compatibility, professional installation, and post-sale support that gray market or unauthorized sources cannot offer. Concord carries the full Garmin marine lineup with over 170 five-star reviews for installation and service.

Yes. All current Garmin GPSMAP and echoMAP chartplotters are fully NMEA 2000 compatible, allowing them to share GPS position, depth, wind, engine, and tank data with other compatible devices onboard. Garmin also uses its own proprietary Garmin Marine Network for higher-bandwidth data like sonar sharing between Garmin units. Concord Marine Electronics can design a complete NMEA 2000 network integration for your vessel.

Garmin marine GPS units are accurate to within 2-3 meters under normal conditions using WAAS-enabled receivers, which is more than sufficient for navigation and fishing applications. In open water with clear sky view, accuracy can improve to under 1 meter. Garmin's multi-band GPS systems, available on higher-end GPSMAP units, further improve accuracy in challenging environments near tall structures or bridges.

The Garmin GPSMAP series is Garmin's premium line, designed for larger vessels with bigger screens (up to 24 inches), faster processors, and support for the full range of Garmin peripherals including radar, autopilot, and Panoptix sonar. The echoMAP series is a more affordable, compact option suited for smaller boats and kayaks, with smaller screens and a focus on sonar and basic GPS charting. Both series are NMEA 2000 compatible and run Garmin's BlueChart g3 charts.

Yes. Concord Marine Electronics provides full Garmin installation services including chartplotter mounting, wiring, NMEA 2000 network integration, radar installation, and system calibration. Our technicians are experienced with the full Garmin marine ecosystem and can integrate new Garmin equipment with your existing onboard systems. Contact us to schedule an installation consultation.

Garmin Panoptix LiveScope uses a phased array transducer to produce real-time, high-resolution sonar images that show fish and structure as they actually appear — not as traditional arches or blobs. The system updates multiple times per second and can be aimed in different directions, including forward-looking and down-looking modes. LiveScope is widely regarded as the most significant advancement in fishing sonar technology in decades and is compatible with Garmin GPSMAP chartplotters.

Yes. Garmin GPSMAP chartplotters can share GPS position and heading data with compatible VHF radios and autopilots over NMEA 2000 or NMEA 0183 connections. This enables DSC position reporting on your VHF and allows the autopilot to follow routes programmed on the chartplotter. Garmin also integrates natively with Garmin autopilots for seamless one-touch route following from the chartplotter interface.