Best Marine Chartplotters and GPS for Boating and Fishing
Finding the right marine chartplotter and GPS depends on your boating style, budget, and the environments you navigate. This guide highlights five reliable options suited for saltwater and freshwater use, from rugged handhelds to chartplotter-ready devices. Best for anglers who need portable options: Garmin handhelds. Best for shore-to-sea navigation with chart detail and satellite connectivity: Garmin GPSMAP series. Best for lake-centric navigation with detailed bathymetry: C-MAP options. This selection helps buyers compare portability, map detail, and connectivity at a glance.
Summary of chosen products:
- Garmin GPSMAP 79sc — Rugged handheld, floats, BlueChart coastal charts
- Garmin GPSMAP 79s — Worldwide basemap, floats, rugged design
- Garmin GPSMAP 86i — Floating handheld with InReach satellite communication
- Garmin GPSMAP 78S — Small marine navigator with worldwide basemap
- C-MAP Reveal X — US Lakes North East, advanced vector charts and HRB data
Garmin GPSMAP 79sc: Floating Handheld With BlueChart
The GPSMAP 79sc is designed for saltwater adventures and shore excursions. It is rugged, water-resistant (IPX6 at unit level), and floats, making it ideal for boats, kayaks, and dinghies where drops are possible. The device features a high-resolution color display, scratch-resistant glass, and BlueChart coastal charts for Americas waters. It supports multiple satellite constellations for global coverage and stores up to 10,000 waypoints, 250 routes, and 300 fitness activities. Best for: boaters who need a floating, preloaded chartplotter in a compact handheld form. Limitation: screen readability in direct sunlight may vary by lighting conditions; verify chart coverage for your region before purchase.
Why it was selected: It combines rugged portability with extensive onboard memory, a built-in compass, and reliable tracking. The floating design reduces loss risk on deck or in the dinghy, and the BlueChart coverage ensures coastal navigation is supported out of the box.
Garmin GPSMAP 79s: Worldwide Basemap And Float
The GPSMAP 79s is a reliable, floating handheld with a worldwide basemap and a bright color display. It includes rugged construction and scratch-resistant, fogproof glass. Like the 79sc, it offers extended memory to store up to 10,000 waypoints, 250 routes, and 300 fitness activities and supports multiple satellite constellations for global navigation. Best for: users who want a robust, global-basemap handheld that remains functional after splashes or submersion. Limitation: it does not come preloaded with detailed regional charts like BlueChart; you may need to add regional data for deeper mapping needs.
Why it was selected: It prioritizes durability and global coverage, making it a solid second option for travelers and explorers who require dependable navigation across multiple regions without specialized chart packages.
Garmin GPSMAP 86i: Floating With InReach
The GPSMAP 86i adds satellite texting and emergency communication via InReach, along with floating operation and a sunlight-visible 3-inch display. This model enables streaming boat data from compatible chartplotters and instruments, consolidating marine system information in one handheld unit. Best for: boaters who need satellite connectivity for remote trips and reliable navigation in shallow or offshore waters. Limitation: battery life varies with satellite usage; plan power management for longer trips.
Why it was selected: It combines the familiar Garmin chartplotter interface with emergency communication, making it a strong choice for solo or long-distance sailors who value safety alongside navigation.
Garmin GPSMAP 78S: Compact Worldwide Navigator
The GPSMAP 78S is a compact marine navigator with a 2.6-inch display and worldwide shaded relief basemap. It also includes a microSD slot for optional mapping and a 3-axis compass with barometric altimeter. Best for: anglers and casual boaters who want a small, portable chartplotter that still offers essential navigation features. Limitation: smaller display may hinder detailed chart reading in rough seas or bright sun.
C-MAP Reveal X: US Lakes North East
The C-MAP Reveal X offers full-featured vector charts with up-to-date hydrographic information and a hi-res bathymetry layer for the US Lakes North East region. It includes HRB data and Genesis social map integrations, enabling better awareness of underwater contours and feature details. Best for: lake or coastal navigators who want high-detail bathymetry, precise routing, and reliable auto-routing. Limitation: requires a compatible chartplotter or device to view the detailed vector charts.
Buying Guide
- Chart coverage to match your waters: coastal vs. inland lakes vs. global basemaps.
- Screen readability and durability: sunlight visibility, glare, and floating capability.
- Data storage and expansion: memory capacity for waypoints, routes, and charts; microSD options.
- Connectivity: built-in satellite messaging (for 86i), multi-constellation GNSS (GPS, GLONASS, Beidou, Galileo), and compatibility with chartplotters.
- Chart formats: vector charts with up-to-date hydrographic data vs. base basemaps for quick navigation.
- Power and portability: battery life for handheld devices; weight and mounting options for boats.
FAQ
- What is the benefit of a floating handheld GPS?
Floating devices reduce the risk of loss if dropped in water and are easier to recover on a moving boat or in a skiff. - Do I need preloaded charts or can I buy them separately?
Preloaded charts save setup time, but many units support adding regional vector charts for enhanced detail. - Which device is best for long-distance trips?
Garmin GPSMAP 86i offers InReach satellite communication, ideal for remote routes and SOS features. - What should I consider for lake navigation?
Look for hi-res bathymetry and auto-routing you can rely on in shallow or complex lake systems. - Is a compact navigator sufficient for serious boating?
Yes, if you pair it with optional maps and robust data storage; otherwise, consider a full-featured chartplotter for larger vessels.