Choosing the right marine GPS chart plotter can significantly enhance your navigation safety and fishing efficiency. The best overall pick, the Simrad GO9 XSE, offers a balanced mix of advanced features and user-friendly design. For more rugged use, the Garmin GPSMAP 79sc stands out with its durability and water-floating capability. Meanwhile, the Garmin ECHOMAP UHD2 74cv provides excellent inland navigation features at a competitive price. The main tradeoffs involve balancing screen size, charting detail, and ease of use—factors that vary based on your specific boating needs. Keep reading for a detailed breakdown of each option and how to choose the best fit for you.
Key Takeaways
- Top-tier models like the Simrad GO9 XSE excel in combining detailed charts with ease of use, making them ideal for serious boaters.
- Garmin’s lineup offers versatile options suited for both inland and coastal navigation, often at a more accessible price point.
- Durability features like water floatation and rugged design are critical for handheld or all-weather use but are less important for fixed mount units.
- Screen size and resolution directly impact how easily you can read charts quickly, especially in challenging conditions.
- Balancing chart detail and user-friendly interfaces is key—more advanced features can be overwhelming for beginners but invaluable for experienced users.
| Simrad GO9 XSE Chartplotter and Fish Finder |  | Best Overall Marine GPS Chart Plotter | Display Size: 9-inch | Chart Type: C-MAP Discover (preloaded) | Sonar Technology: HDI Transducer with 83/200 kHz CHIRP and DownScan Imaging | VIEW LATEST PRICE | See Our Full Breakdown |
| Garmin GPSMAP 79sc, Marine GPS Handheld Preloaded with BlueChart g3 Coastal Charts, Rugged Design and Floats in Water |  | Best Rugged Handheld Marine GPS | Display Size: 6 inches | Water Resistance: IPX6, floats | Satellite Support: GPS, GLONASS, Beidou, Galileo, SBAS | VIEW LATEST PRICE | See Our Full Breakdown |
| Garmin ECHOMAP UHD2 53CV Chartplotter/Fishfinder with US Inland Maps and GT20-TM Transducer |  | Best Compact Chartplotter with Dual Sonar | Display Size: 5 inches | Sonar Types: CHIRP Traditional, ClearVü | Maps Included: U.S. Inland LakeVü g3 | VIEW LATEST PRICE | See Our Full Breakdown |
| Garmin ECHOMAP UHD2 74cv with GT20-TM Transducer |  | Best Larger Screen Chartplotter with Coastal Maps | Display Size: 7 inches | Sonar Types: ClearVü | Maps Included: Navionics+ U.S. Coastal | VIEW LATEST PRICE | See Our Full Breakdown |
| Simrad GO9 XSE Chartplotter and Fish Finder with C-MAP Discover Charts |  | Best Multifunction Marine Display with Radar | Display Size: 9 inches | Preloaded Charts: C-MAP Discover | Sonar Technology: Active Imaging 3-in-1 (CHIRP, SideScan, DownScan) | VIEW LATEST PRICE | See Our Full Breakdown |
| Garmin ECHOMAP UHD2 54CV Chartplotter/Fishfinder with US Coastal Maps and GT20-TM |  | Best Compact Marine Chartplotter for Versatile Waterways | Display Size: 5 Inches | Sonar Types: CHIRP Traditional, ClearVü | Preloaded Maps: BlueChart g3 Coastal | VIEW LATEST PRICE | See Our Full Breakdown |
| Garmin ECHOMAP UHD2 73CV Chartplotter/Fishfinder with US Inland Maps and GT20-TM |  | Best Larger Display for Inland and Coastal Navigation | Display Size: 7 inches | Sonar Types: CHIRP Traditional, ClearVü | Preloaded Maps: LakeVü g3 Inland, BlueChart g3 Coastal | VIEW LATEST PRICE | See Our Full Breakdown |
| Garmin ECHOMAP UHD2 54CV Chartplotter/Fishfinder with US Coastal Maps |  | Best Entry-Level Coastal Marine Chartplotter | Display Size: 5 Inches | Sonar Support: ClearVü | Preloaded Maps: Navionics+ U.S. Coastal | VIEW LATEST PRICE | See Our Full Breakdown |
| 12″ ECHOMAP Ultra 2 122sv Chartplotter by Garmin |  | Best High-End Large Screen for Advanced Navigation | Display Size: 12 inches | Sonar Support: LiveScope (sold separately) | Mapping Options: High-res relief shading, optional Navionics Vision+ | VIEW LATEST PRICE | See Our Full Breakdown |
More Details on Our Top Picks
Simrad GO9 XSE Chartplotter and Fish Finder
The Simrad GO9 XSE stands out for its all-in-one approach, combining GPS navigation, CHIRP sonar, DownScan Imaging, and radar integration into a single 9-inch touchscreen display. Compared with the Garmin GPSMAP 79sc, it offers a larger, more detailed screen and more advanced sonar capabilities, making it better suited for serious fishermen and boaters who want a comprehensive system. However, its sophisticated setup can be complex and may require technical expertise, and the higher price reflects its premium features. The preloaded C-MAP Discover charts with bathymetric data add valuable detail for both navigation and fishing. Tradeoffs include complexity versus capability and cost.
Pros:- All-in-one system with navigation, sonar, and radar
- High-resolution DownScan Imaging for fish detection
- Supports Wi-Fi mirroring and NMEA 2000 integration
Cons:- Higher price point relative to simpler units
- Setup can be complex and intimidating for newcomers
Best for: Experienced boaters and anglers seeking a versatile, integrated navigation and fish-finding system.
Not ideal for: Casual boaters or those on a tight budget who prefer simpler, standalone GPS devices.
- Display Size:9-inch
- Chart Type:C-MAP Discover (preloaded)
- Sonar Technology:HDI Transducer with 83/200 kHz CHIRP and DownScan Imaging
- Connectivity:Built-in GPS, Wi-Fi, NMEA 2000
- Customizable Features:Split-screen views, home screen shortcuts
Bottom line: This device is ideal for advanced users wanting a multifunctional chartplotter with integrated fishfinding and radar features.
Garmin GPSMAP 79sc, Marine GPS Handheld Preloaded with BlueChart g3 Coastal Charts, Rugged Design and Floats in Water
The Garmin GPSMAP 79sc excels as a portable, rugged handheld GPS that floats, making it perfect for on-the-water adventures where durability is key. Its 6-inch high-resolution color display is bright and scratch-resistant, ideal for quick navigation checks. Compared with the larger Simrad GO9 XSE, it sacrifices display size but gains portability and water resistance, including floating capabilities. Its support for multiple satellite constellations ensures reliable tracking worldwide, and with up to 20 hours of battery life, it’s a dependable companion for extended trips. On the downside, its smaller screen limits detailed map viewing, and it lacks built-in sonar, so it’s not suitable for detailed fish-finding. This pick makes the most sense for anglers and boaters needing a tough, portable device.
Pros:- Rugged, water-resistant and floats
- Supports multiple satellite systems for reliable tracking
- Long battery life of up to 20 hours
Cons:- Limited display size reduces map detail visibility
- No built-in sonar or chartplotting capabilities
Best for: Water-based adventurers and anglers needing a portable, durable GPS that floats and resists the elements.
Not ideal for: Users seeking a large, fixed mount chartplotter with integrated sonar and radar features.
- Display Size:6 inches
- Water Resistance:IPX6, floats
- Satellite Support:GPS, GLONASS, Beidou, Galileo, SBAS
- Battery Life:Up to 20 hours
- Maps Included:BlueChart g3 coastal
Bottom line: This handheld GPS is perfect for outdoor and fishing enthusiasts who prioritize durability and portability over large screen size.
Garmin ECHOMAP UHD2 53CV Chartplotter/Fishfinder with US Inland Maps and GT20-TM Transducer
The Garmin ECHOMAP UHD2 53CV offers a compact 5-inch display with dual sonar capabilities, including CHIRP traditional sonar and ClearVü scanning, providing clear underwater images. Its preloaded U.S. inland maps and Wi-Fi connectivity make it suitable for freshwater anglers targeting lakes and rivers. Compared to the 74cv model, it’s smaller but more affordable, making it a good choice for smaller boats or limited space. The small size, however, limits the viewing area, which might be less than ideal for larger vessels or those who prefer bigger displays for navigation and fishfinding. Additional transducers or upgrades are needed for extended sonar features. This makes sense for anglers in lakes or rivers with limited space onboard.
Pros:- Dual sonar for detailed fish detection
- Preloaded inland US maps
- Wi-Fi for data sharing
Cons:- Small 5-inch display may limit usability
- Requires additional transducer if not bundled
Best for: Freshwater anglers with compact boats seeking dual sonar and preloaded inland maps.
Not ideal for: Vessel owners requiring larger screens or global marine charts for offshore use.
- Display Size:5 inches
- Sonar Types:CHIRP Traditional, ClearVü
- Maps Included:U.S. Inland LakeVü g3
- Connectivity:Wi-Fi
- Transducer Included:GT20-TM
Bottom line: This unit suits freshwater anglers looking for a compact, dual sonar-enabled chartplotter with preloaded inland maps.
Garmin ECHOMAP UHD2 74cv with GT20-TM Transducer
The Garmin ECHOMAP UHD2 74cv features a 7-inch display with ClearVü scanning sonar, providing vivid underwater images for both navigation and fishing. Its preloaded U.S. coastal maps with Navionics+ enhance coastal navigation, making it ideal for offshore anglers and boaters. Compared with the 53CV, the 74cv offers a larger screen and more detailed coastal charts, but it still remains relatively compact and suitable for a wide range of boats. Its built-in Wi-Fi supports sharing data with other devices and accessing ActiveCaptain app features. Nonetheless, its focus on U.S. coastal navigation limits its global use, and additional chart options require separate purchases. This option is best for coastal boaters wanting a bigger screen with excellent sonar and mapping.
Pros:- Vivid ClearVü high-contrast sonar imaging
- Preloaded U.S. coastal maps with Navionics+
- Wi-Fi for sharing and app integration
Cons:- 7-inch screen may be small for some users
- Limited to U.S. coastal coverage
Best for: Coastal boaters and anglers needing a mid-size display with detailed U.S. maps and high-quality sonar.
Not ideal for: Offshore explorers seeking global charts or users wanting a large, 12-inch display.
- Display Size:7 inches
- Sonar Types:ClearVü
- Maps Included:Navionics+ U.S. Coastal
- Connectivity:Wi-Fi
- Transducer:GT20-TM
Bottom line: This device fits boaters seeking a balance of a larger screen and detailed coastal charts for nearshore navigation and fishing.
Simrad GO9 XSE Chartplotter and Fish Finder with C-MAP Discover Charts
The Simrad GO9 XSE is designed for boaters who need a comprehensive system combining GPS, advanced sonar (Active Imaging 3-in-1), and radar capabilities. Its 9-inch display provides ample space for split-screen views, making it suitable for serious fishing or navigation. Compared with Garmin’s smaller units, it offers a more advanced sonar suite and supports radar overlay, ideal for larger vessels or those wanting detailed structure scans. The preloaded C-MAP Discover charts with bathymetric data enhance both navigation and fishing. The high price reflects its premium multifunctionality, and setup complexity might deter casual users. This pick is best for experienced boaters requiring a high-end, customizable electronics suite.
Pros:- Multifunction display with GPS, sonar, and radar support
- High-resolution Active Imaging 3-in-1 transducer
- Customizable interface and radar overlay
Cons:- Premium price point
- Complex setup and operation for beginners
Best for: Experienced anglers and boaters seeking a multifunctional system with radar, advanced sonar, and detailed charts.
Not ideal for: Casual boaters or those with limited budgets who do not need radar or advanced sonar features.
- Display Size:9 inches
- Preloaded Charts:C-MAP Discover
- Sonar Technology:Active Imaging 3-in-1 (CHIRP, SideScan, DownScan)
- Radar Support:Yes
- Connectivity:NMEA 2000, Wi-Fi
Bottom line: This system is suited for seasoned boaters who want a highly capable, integrated electronic system for fishing and navigation.
Garmin ECHOMAP UHD2 54CV Chartplotter/Fishfinder with US Coastal Maps and GT20-TM
This 5-inch Garmin ECHOMAP UHD2 54CV stands out for its bright, sunlight-readable display and dual sonar support, making it ideal for anglers who need clear underwater views in a compact package. Compared to the larger 73CV model, it offers a more portable size but sacrifices the extensive mapping and screen real estate, which could be a limiting factor for serious navigators. Its preloaded BlueChart g3 coastal maps and ClearVü sonar deliver high-contrast images, but it requires a transducer to access sonar functions—unlike the UHD2 73CV, which includes the GT20-TM transducer. Wi-Fi connectivity allows easy data sharing, though the smaller screen limits multitasking. This pick is perfect for boaters prioritizing ease of installation and portability without needing extensive onboard mapping.
Pros:- Bright, sunlight-readable 5” display for clear visibility in various conditions
- Supports dual sonar types for versatile underwater imaging
- Preloaded with US coastal BlueChart g3 maps and ClearVü sonar
Cons:- Requires additional transducer purchase for sonar operation
- Limited screen size restricts multitasking and detailed views
- Advanced features may be challenging for beginners to fully utilize
Best for: Anglers and small boat owners who want a reliable, easy-to-mount chartplotter with good sonar capabilities.
Not ideal for: Navigation-focused users needing a large display or detailed inland mapping, who should consider larger models like the 73CV.
- Display Size:5 Inches
- Sonar Types:CHIRP Traditional, ClearVü
- Preloaded Maps:BlueChart g3 Coastal
- Connectivity:Wi-Fi
- Transducer Included:GT20-TM (sold separately)
- Mounting Type:Flush or Bail Mount
Bottom line: Ideal for small boat anglers seeking a compact, sonar-supporting chartplotter with good visibility and portability.
Garmin ECHOMAP UHD2 73CV Chartplotter/Fishfinder with US Inland Maps and GT20-TM
This 7-inch Garmin ECHOMAP UHD2 73CV enhances underwater detection with dual sonar, offering detailed inland and coastal mapping that appeals to multi-environment boaters. Its larger screen makes it easier to interpret sonar data compared to the 54CV, but it also means more complex installation and a higher price point. Supporting both CHIRP traditional and ClearVü sonar, it provides vivid, high-contrast underwater images, while preloaded LakeVü g3 inland maps and BlueChart coastal charts extend its utility across different water bodies. Wi-Fi sharing simplifies data transfer among compatible Garmin units, but users need to buy a transducer separately to enable full sonar functions—unlike the UHD2 54CV, which doesn’t include one. This model is suited for anglers and cruisers who need a versatile, larger display with comprehensive mapping.
Pros:- Larger 7” sunlight-readable display for easier viewing
- Dual sonar support for detailed underwater imaging
- Preloaded with inland LakeVü g3 and coastal BlueChart maps
Cons:- Additional transducer purchase needed for sonar operation
- Installation complexity increases with size
- More advanced features may present a learning curve
Best for: Serious anglers and boaters who operate in both inland lakes and coastal waters and value a bigger screen for easier navigation and fish-finding.
Not ideal for: Small boat owners or those on a tight budget who prefer a more portable or less expensive device without the need for extensive mapping.
- Display Size:7 inches
- Sonar Types:CHIRP Traditional, ClearVü
- Preloaded Maps:LakeVü g3 Inland, BlueChart g3 Coastal
- Connectivity:Wi-Fi
- Transducer Included:GT20-TM
- Mounting Type:Tilt and Flush Mount
Bottom line: Best suited for boaters requiring a larger display with versatile inland and coastal mapping and sonar capabilities.
Garmin ECHOMAP UHD2 54CV Chartplotter/Fishfinder with US Coastal Maps
The Garmin ECHOMAP UHD2 54CV with US coastal maps offers a straightforward, reliable 5-inch display with ClearVü sonar for high-contrast underwater views, making it suitable for casual boaters and anglers. Its compact size simplifies installation, but it lacks a built-in GPS antenna, requiring an external source for positioning—unlike the UHD2 73CV, which often includes integrated GPS options. The device’s preloaded Navionics+ maps enhance coastal navigation, yet its small screen limits multitasking and detailed chart viewing, which might frustrate users needing comprehensive onboard mapping. Wi-Fi connectivity supports data sharing with other Garmin devices, but the transducer must be purchased separately to unlock sonar features. This model is perfect for boaters who prioritize a simple, affordable coastal chartplotter with good sonar support.
Pros:- Sunlight-readable 5″ display for easy outdoor viewing
- Preloaded with Navionics+ coastal maps for navigation
- Supports ClearVü sonar for high-contrast underwater images
Cons:- Transducer sold separately, adding to total cost
- No built-in GPS antenna included
- Limited screen size restricts detailed mapping and multitasking
Best for: Casual boaters or anglers seeking an affordable, compact chartplotter primarily for coastal waters, not extensive inland navigation.
Not ideal for: Users requiring integrated GPS or larger screens for detailed mapping and multitasking on larger boats.
- Display Size:5 Inches
- Sonar Support:ClearVü
- Preloaded Maps:Navionics+ U.S. Coastal
- Connectivity:Wi-Fi
- Mounting Type:Flush
- Weight:2 Pounds
Bottom line: A cost-effective coastal chartplotter for boaters who need reliable sonar and basic navigation in a compact form.
12″ ECHOMAP Ultra 2 122sv Chartplotter by Garmin
The Garmin ECHOMAP Ultra 2 122sv with a massive 12-inch display is designed for serious boaters and anglers who demand detailed mapping, extensive customization, and advanced sonar support. Its large, vibrant screen enhances visibility and multitasking, making it ideal for complex navigation and detailed fish-finding. The unit supports LiveScope sonar (sold separately), offering real-time underwater imaging that surpasses traditional sonar clarity. Wireless sharing of sonar, waypoints, and routes simplifies data management among compatible Garmin units. Compared with smaller models, the 122sv’s size and high-res display provide a significant advantage in complex water environments, but it also means higher cost and more demanding installation. This device suits experienced users who want top-tier features for extensive waterway coverage.
Pros:- Large, high-resolution 12-inch display for easy multitasking
- Supports LiveScope sonar for real-time underwater imaging
- Wireless sharing of waypoints, routes, and sonar data
Cons:- High price point and complex installation process
- LiveScope transducer sold separately, adding extra cost
- Advanced features may overwhelm beginners
Best for: Experienced boaters and anglers seeking a large, feature-rich chartplotter with advanced sonar options and extensive mapping abilities.
Not ideal for: Casual boaters or those with limited space or budget constraints, who should opt for smaller or less expensive models.
- Display Size:12 inches
- Sonar Support:LiveScope (sold separately)
- Mapping Options:High-res relief shading, optional Navionics Vision+
- Wireless Sharing:Yes
- Included Components:Chartplotter only
- Model Number:010-02881-01
Bottom line: Best for experienced boaters desiring a large, highly capable, and customizable chartplotter with premium sonar options.
How We Picked
The products in this roundup were evaluated based on performance, ease of use, build quality, and value for money. We prioritized models that offer reliable charting, intuitive interfaces, and durability, especially for harsh marine environments. The ranking reflects a combination of feature set, user reviews, and overall versatility—aiming to identify options suitable for both casual boaters and serious anglers. We also considered the breadth of chart compatibility and expandability, ensuring choices cater to different navigation needs and budgets.Factors to Consider When Choosing Marine GPS Chart Plotters
Selecting the right marine GPS chart plotter involves understanding key factors that influence usability and value. Beyond basic features, it’s important to consider how well a device integrates with your existing gear, the clarity of its display, and how much it can grow with your needs. Making an informed decision requires weighing these broader considerations against your specific boating style and budget.Display Size and Resolution
Clear, easily readable screens are vital when navigating in challenging conditions. Larger displays with higher resolution enable quicker interpretation of charts and sonar data, reducing the risk of errors. However, bigger screens often come at a higher cost and may require more space on your helm. Choose a size that balances visibility with your boat’s dashboard layout.
Chart Compatibility and Maps
The quality and scope of charts available can make a significant difference. Some units come preloaded with detailed coastal, inland, or fishing charts, while others allow for extensive map downloads. Consider whether the device supports your preferred chart formats and whether additional updates or subscriptions are necessary for your navigation area.
Ease of Use and Interface
An intuitive interface reduces the learning curve and helps you access critical data quickly. Touchscreen controls, customizable menus, and logical layouts matter, especially when your hands are wet or gloved. Avoid overly complicated systems if you prefer straightforward operation, but don’t sacrifice advanced features if you’re experienced.
Durability and Build Quality
Marine environments demand rugged construction. Look for water resistance, sun protection, and corrosion-resistant materials. For portable units, features like floatation or shock resistance can prevent costly damage and loss. Fixed units should have sealed casings that withstand harsh weather and salt spray.
Expandability and Connectivity
Many modern plotters support sonar transducers, radar, AIS, and other peripherals. Consider your future upgrade plans and whether the device can connect to your existing systems via Wi-Fi, Bluetooth, or Ethernet. This flexibility can extend the device’s usefulness and enhance your overall navigation experience.
Frequently Asked Questions
Can I use a marine GPS chart plotter for fishing?
Yes, many marine GPS chart plotters include fish finder capabilities or support external sonar transducers, making them ideal for fishing. Features like detailed underwater maps, depth contours, and real-time sonar data help locate fish more effectively. Ensure the model you choose has these capabilities if fishing is a priority, and consider the transducer compatibility for best results.
Is a touchscreen or physical buttons better for marine chart plotters?
Touchscreens offer quick, intuitive control, especially in calm conditions, but can be less reliable when your hands are wet or gloved. Physical buttons provide tactile feedback and are often more durable in rough environments. Many high-end units combine both, offering the convenience of touch with the reliability of dedicated controls—consider your typical boating conditions when choosing.
How often do I need to update the charts on my GPS plotter?
Chart updates depend on your sailing area and the manufacturer’s offerings, but generally, updating at least once a year is recommended. New charts include critical updates like new navigational hazards, changes in water depths, and updated coastlines. Subscriptions or free updates vary by device, so check what’s included or available for your model.
Are handheld marine GPS units as good as fixed mount systems?
Handheld units are portable and great for secondary navigation or backup, but they usually lack the screen size, processing power, and expandability of fixed mount systems. Fixed units typically offer larger displays, more advanced features, and better integration with onboard systems. Use handhelds for portability and quick reference, but rely on dedicated plotters for primary navigation.
What should I consider if I want a GPS for both inland and coastal use?
Look for a device that supports both inland and coastal charts, with the ability to switch seamlessly between them. Ensure it has detailed inland maps for river navigation and comprehensive coastal charts for open water. Compatibility with both types of maps and the ability to update them easily should guide your choice, especially if your boating spans different environments.
Conclusion
For the most demanding users or those seeking a comprehensive, all-around device, the Simrad GO9 XSE stands out as the best overall choice. Budget-conscious boaters will find the Garmin GPSMAP 79sc offers excellent value with rugged durability. Newcomers and casual boaters should consider the Garmin ECHOMAP UHD2 54CV for its simplicity and affordability. For those prioritizing advanced features and larger screens, the 12″ ECHOMAP Ultra 2 122sv provides a premium experience. Ultimately, your choice depends on your specific use case, environment, and budget.
