So you’re ready to upgrade your boat’s brain, and you want the best chartplotters that feel like a pro’s secret weapon. These devices blend high-res touchscreens, multi-band GPS, and detailed chart support with serious sonar like DownScan and StructureScan HD. You’ll connect seamlessly, customize your interface, and find fish effortlessly. But with options like the Simrad GO or Garmin ECHOMAP UHD2, where do you start? Let’s break down the 10 best.
| Simrad GO Chartplotter with C-MAP Card |  | Best Value | Display Size: 9 inches | GPS Capability: Built-in 10 Hz GPS | Sonar/Fishfinder Support: Active Imaging 3-in-1 transducer (included) | VIEW LATEST PRICE | Read Our Analysis |
| Simrad GO Chartplotter with Preloaded C-MAP Charts |  | Editor’s Choice | Display Size: 9 inches | GPS Capability: Built-in 10 Hz GPS | Sonar/Fishfinder Support: HDI transducer support (included) | VIEW LATEST PRICE | Read Our Analysis |
| Garmin ECHOMAP UHD2 73sv with GT54 Transducer |  | Best For Fishing | Display Size: 7 inches | GPS Capability: Multi-band GPS | Sonar/Fishfinder Support: GT54-TM transducer (included) | VIEW LATEST PRICE | Read Our Analysis |
| Garmin ECHOMAP UHD2 94sv with GT56 Transducer |  | Most Versatile | Display Size: 9 inches | GPS Capability: Multi-band GPS | Sonar/Fishfinder Support: GT56-TM transducer (included) | VIEW LATEST PRICE | Read Our Analysis |
| Garmin ECHOMAP UHD2 54CV Chartplotter/Fishfinder |  | Budget-Friendly Pick | Display Size: 5 inches | GPS Capability: GPS (built-in) | Sonar/Fishfinder Support: GT20-TM transducer (included) | VIEW LATEST PRICE | Read Our Analysis |
| Garmin ECHOMAP UHD2 93sv with GT56 Transducer |  | Most Popular | Display Size: 9 inches | GPS Capability: Multi-band GPS | Sonar/Fishfinder Support: GT56-TM transducer (included) | VIEW LATEST PRICE | Read Our Analysis |
| Garmin 010-02366-61 GPSMAP 943xsv SideVü |  | Professional Grade | Display Size: 9 inches | GPS Capability: GPS (built-in) | Sonar/Fishfinder Support: Built-in CHIRP, ClearVü, SideVü | VIEW LATEST PRICE | Read Our Analysis |
| Humminbird 411660-1 Helix 5 Chirp GPS G3 Fish Finder |  | Best For Beginners | Display Size: 5 inches | GPS Capability: Enhanced GPS navigation | Sonar/Fishfinder Support: Dual Spectrum CHIRP Sonar (XNT 9 HW T transducer included) | VIEW LATEST PRICE | Read Our Analysis |
| Simrad GO9 XSE Chartplotter with C-MAP |  | Best Overall | Display Size: 9 inches | GPS Capability: GPS navigation supported | Sonar/Fishfinder Support: Aftermarket transducer supported (sold separately) | VIEW LATEST PRICE | Read Our Analysis |
| Garmin ECHOMAP UHD2 73CV Chartplotter/Fishfinder |  | Best Durability | Display Size: 7 inches | GPS Capability: GPS (built-in) | Sonar/Fishfinder Support: GT20-TM transducer (included) | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Simrad GO Chartplotter with C-MAP Card
The Simrad GO9 XSE gives you a feature-rich, mid-sized chartplotter without draining your wallet. Its multi-touch screen works just like your phone, so you pinch to zoom and swipe to pan with ease. You get a high-speed 10 Hz GPS for smooth, accurate positioning even on fast-moving boats. The Cruise Charting function bundles your navigation data into a clean, customizable display. Plus, it supports C-MAP, Navionics, and Insight charts, so you navigate confidently anywhere. And with built-in Wi-Fi and NMEA 2000, you mirror your display to a tablet or integrate with engine sensors.
- Display Size:9 inches
- GPS Capability:Built-in 10 Hz GPS
- Sonar/Fishfinder Support:Active Imaging 3-in-1 transducer (included)
- Chart/Mapping Type:C-MAP MAX-N, Navionics, Insight, Insight Genesis, NV Digital Charts
- Connectivity (Wi-Fi/Network):Built-in Wi-Fi, NMEA 2000
- Warranty:2-year manufacturer warranty
- Additional Feature:TripIntel trip insights
- Additional Feature:Cruise Charting display
- Additional Feature:ForwardScan sonar option
Simrad GO Chartplotter with Preloaded C-MAP Charts
For tech-savvy anglers who want a powerhouse display that’s also intuitive, the Simrad GO9 XSE is our editor’s choice. You’ll love that 9-inch capacitive touchscreen, which responds just like your smartphone. Tap to create waypoints, pinch to zoom, or drag to pan. Customize your home screen with shortcuts, wallpapers, and split-screen views, so you can switch from fishing to cruising instantly. The preloaded C-MAP charts let you navigate confidently, and the built in 10 Hz GPS keeps your position smooth even at speed. Need sonar? The included HDI transducer delivers CHIRP, DownScan, and StructureScan HD. You’ll spot fish, structure, and depth with ease. Plus, you can add ForwardScan for shallow water safety. Connect via Wi Fi or Bluetooth to mirror your display on a phone or tablet. It’s a complete marine navigation tool in a 3 pound, waterproof package.
- Display Size:9 inches
- GPS Capability:Built-in 10 Hz GPS
- Sonar/Fishfinder Support:HDI transducer support (included)
- Chart/Mapping Type:C-MAP MAX-N, Navionics, Insight, Insight Genesis, NV Digital Charts (C-MAP Discover card included)
- Connectivity (Wi-Fi/Network):Built-in Wi-Fi, Bluetooth, NMEA 2000
- Warranty:2-year warranty
- Additional Feature:AutoRouting (non-USA)
- Additional Feature:Bluetooth connectivity
- Additional Feature:Radar overlay feature
Garmin ECHOMAP UHD2 73sv with GT54 Transducer
You get a 7-inch touchscreen that’s bright enough to read in direct sun, with keyed assist for when your hands are wet. That GT54-TM transducer delivers Garmin’s traditional sonar plus ClearVü and SideVü scanning for crisp underwater imagery. You’ll appreciate the built-in Navionics+ maps covering over 18,000 U.S. lakes with 1-foot contours. Multi-band GPS locks position even in tricky spots.
Connect wirelessly to your Force trolling motor for route creation and battery monitoring. Pair with the ActiveCaptain app for updates and OneChart access. NMEA 2000 integration lets you link autopilots and audio systems. Maximum depth hits 1000 feet. That’s pro-grade navigation you control easily.
- Display Size:7 inches
- GPS Capability:Multi-band GPS
- Sonar/Fishfinder Support:GT54-TM transducer (included)
- Chart/Mapping Type:Garmin Navionics+ inland maps
- Connectivity (Wi-Fi/Network):Built-in Wi-Fi, NMEA 2000
- Warranty:1-year limited warranty
- Additional Feature:Multi-band GPS technology
- Additional Feature:LiveScope sonar support
- Additional Feature:Force trolling motor control
Garmin ECHOMAP UHD2 94sv with GT56 Transducer
If versatility is what you’re after, this chartplotter is the most versatile in its class. You get a 9-inch, sunlight-readable touchscreen with a keyed-assist interface, so you’re never fumbling in rough seas. The GT56 transducer delivers Garmin traditional sonar, ClearVü, and SideVü scanning sonars for crisp fish arches and vivid views around your boat. Built in Navionics+ coastal charts cover U.S. waters, while multi-band GPS locks position fast even under bridges.
Wireless perks? You’ve got Wi Fi to share sonar data with other ECHOMAP units, plus the ActiveCaptain app for OneChart features. And it links to Force trolling motor for route following, waypoint nav, and speed control.
- Display Size:9 inches
- GPS Capability:Multi-band GPS
- Sonar/Fishfinder Support:GT56-TM transducer (included)
- Chart/Mapping Type:Garmin Navionics+ coastal charts
- Connectivity (Wi-Fi/Network):Built-in Wi-Fi, NMEA 2000
- Warranty:1-year limited warranty
- Additional Feature:Multi-band GPS technology
- Additional Feature:LiveScope sonar support
- Additional Feature:Keyed-assist interface
Garmin ECHOMAP UHD2 54CV Chartplotter/Fishfinder
The Garmin ECHOMAP UHD2 54CV is the best budget-friendly pick for anglers who want pro-level navigation without the premium price tag. You get dual sonar capability—CHIRP traditional and ClearVü—so those underwater structures pop with high-contrast color. It’s preloaded with LakeVü g3 inland maps and BlueChart g3 coastal charts, meaning you’re ready for both fresh and saltwater. And with built-in Wi-Fi, you share waypoints and sonar data wirelessly with compatible units. The 5-inch keyed display, weighing just 16 ounces, fits flush or bail mount. You’ll also use the ActiveCaptain app for updates and community data.
- Display Size:5 inches
- GPS Capability:GPS (built-in)
- Sonar/Fishfinder Support:GT20-TM transducer (included)
- Chart/Mapping Type:Preloaded LakeVü g3 and BlueChart g3
- Connectivity (Wi-Fi/Network):Built-in Wi-Fi
- Warranty:1-year limited warranty (implied)
- Additional Feature:Preloaded LakeVü g3 maps
- Additional Feature:BlueChart g3 charts
- Additional Feature:Dual sonar capability
Garmin ECHOMAP UHD2 93sv with GT56 Transducer
Few chartplotters match the popularity of the Garmin ECHOMAP UHD2 93sv with GT56 Transducer, and for good reason. You’re getting a bright 9-inch touchscreen with crystal clear detail, plus the GT56 transducer delivers traditional, ClearVü, and SideVü sonar. It’s a dream for inland fishing with preloaded Navionics+ contours down to 1 foot for over 18,000 lakes. Built-in Wi-Fi lets you share data with other units, while multi-band GPS keeps you accurate in tricky spots. Pair it with the ActiveCaptain app for quick updates. You’ll also wirelessly control a Force trolling motor for precise waypoint navigation. At 4.7 stars, it’s a reliable powerhouse.
- Display Size:9 inches
- GPS Capability:Multi-band GPS
- Sonar/Fishfinder Support:GT56-TM transducer (included)
- Chart/Mapping Type:Garmin Navionics+ inland maps
- Connectivity (Wi-Fi/Network):Built-in Wi-Fi, NMEA 2000
- Warranty:1-year limited warranty
- Additional Feature:Multi-band GPS technology
- Additional Feature:LiveScope sonar support
- Additional Feature:Force trolling motor control
Garmin 010-02366-61 GPSMAP 943xsv SideVü
Want a chartplotter that feels like you’ve got a pro’s secret weapon right at your fingertips? The Garmin 010-02366-61 GPSMAP 943xsv SideVü delivers exactly that. Its 9-inch IPS display offers crisp, wide-viewing optics, and you can flush mount it for a clean helm setup. You’ll get ultra-high-definition scanning sonar, including Panoptix, ClearVü, and traditional CHIRP, revealing every detail below. Pre-loaded Navionics+ charts simplify route planning across any water. And you’ll integrate it seamlessly into your Garmin marine system or connect third-party devices through OneHelm digital switching. It’s a unified command center, powered by DC, with a stellar 4.8-star rating.
- Display Size:9 inches
- GPS Capability:GPS (built-in)
- Sonar/Fishfinder Support:Built-in CHIRP, ClearVü, SideVü
- Chart/Mapping Type:Preloaded Garmin Navionics+ charts
- Connectivity (Wi-Fi/Network):NMEA 2000, OneHelm compatible
- Warranty:Manufacturer warranty (duration not specified)
- Additional Feature:IPS display technology
- Additional Feature:Panoptix sonar support
- Additional Feature:OneHelm digital switching
Humminbird 411660-1 Helix 5 Chirp GPS G3 Fish Finder
You’re new to fish finders and want a clear, reliable starting point. The Humminbird 411660-1 Helix 5 Chirp GPS G3 delivers exactly that. Its 5‑inch TFT display shows crisp readings, while Dual Spectrum CHIRP Sonar gives you two search modes. Use Wide Mode to sweep large areas for fish‑holding structures, then switch to Narrow Mode for precise target separation. You get enhanced GPS with over 10,000 U.S. lakes preloaded. And with AutoChart Live, you map depth contours and bottom hardness in real time. The keypad controls work great in any weather. It’s a powerful, no‑nonsense tool.
- Display Size:5 inches
- GPS Capability:Enhanced GPS navigation
- Sonar/Fishfinder Support:Dual Spectrum CHIRP Sonar (XNT 9 HW T transducer included)
- Chart/Mapping Type:Humminbird Basemap (10,000+ lakes)
- Connectivity (Wi-Fi/Network):No Wi-Fi/NMEA 2000 mentioned
- Warranty:1-year warranty
- Additional Feature:Dual Spectrum CHIRP Sonar
- Additional Feature:AutoChart Live mapping
- Additional Feature:Humminbird Basemap included
Simrad GO9 XSE Chartplotter with C-MAP
The Simrad GO9 XSE balances power and price so evenly you might wonder why other brands bother. You’re getting a bright 9-inch capacitive touchscreen with crisp 1920×1080 resolution, all running on a snappy Linux OS. It’s NMEA 2000 compatible and Wi-Fi enabled, so you can control it from your smartphone. The included C-MAP EXPLORE card gives you Vector Charts, high-res Bathymetric contours, Custom Depth Shading, plus Tides & Currents across the US and Canada. Need a fish finder? Just add an aftermarket CHIRP transducer. Radar-ready too. Comes with mount, dash kit, bezel, power cable, sun cover, and a 2-year warranty.
- Display Size:9 inches
- GPS Capability:GPS navigation supported
- Sonar/Fishfinder Support:Aftermarket transducer supported (sold separately)
- Chart/Mapping Type:C-MAP DISCOVER vector charts
- Connectivity (Wi-Fi/Network):Wi-Fi, NMEA 2000
- Warranty:2-year manufacturer warranty
- Additional Feature:1920×1080 resolution
- Additional Feature:Linux OS operating system
- Additional Feature:Customizable user interface
Garmin ECHOMAP UHD2 73CV Chartplotter/Fishfinder
This 7 inch keyed display holds up on rough water. You’ll love the bright LCD as it cuts through glare. It includes Garmin CHIRP traditional sonar plus ClearVü scanning sonar for crisp underwater visuals. Preloaded LakeVü g3 maps guide you inland or coastal. Connect via Wi-Fi to share sonar data and waypoints with other ECHOMAP units. The ActiveCaptain app lets you update software and access Quickdraw Community data. Built for crisp sonar and reliable mapping, this bundle includes the GT20-TM transducer and mounting hardware.
- Display Size:7 inches
- GPS Capability:GPS (built-in)
- Sonar/Fishfinder Support:GT20-TM transducer (included)
- Chart/Mapping Type:Preloaded LakeVü g3 and BlueChart g3
- Connectivity (Wi-Fi/Network):Built-in Wi-Fi
- Warranty:1-year limited warranty (implied)
- Additional Feature:Preloaded LakeVü g3 maps
- Additional Feature:BlueChart g3 charts
- Additional Feature:Support for Navionics+ cartography
Factors to Consider When Choosing a Chartplotter for Boat
When you’re picking a chartplotter, display size matters because a bigger screen means you’ll see intricate details without squinting, especially in rough seas. You’ll also need to weigh sonar technology types, like CHIRP or SideVu, and chart coverage options, because a detailed map of your local waters is useless without solid GPS accuracy. And don’t overlook transducer quality—it’s the backbone of your fishfinding and depth readings, so choose carefully.
Display Size Matters
Why does screen size matter so much when choosing your chartplotter? Simple: it’s your window to the underwater world. A larger display gives you more real estate, so you can view detailed charts and crisp sonar images side by side without squinting. That extra size boosts visibility in harsh sunlight and from odd angles, keeping you safer on the water.
You’ll appreciate how a bigger screen supports complex interfaces and customizable split-screen views, perfect for serious navigation or fishing efficiency. Plus, these larger units usually pack higher resolution, meaning sharper, clearer images for spotting structure or bottom contours.
But bigger isn’t always better. They demand more installation space and hit your budget harder. Weigh your helm’s layout against your needs. For most boaters, a 7 to 10 inch screen offers the sweet spot: big enough to see everything, not so big it dominates.
Sonar Technology Types
While screen size gives you the space to see everything, it’s the sonar technology underneath that actually reveals what’s hiding below the surface. You’ll find options like CHIRP, which fires a broad range of frequencies for razor-sharp target separation, making fish and structure pop. SideScan and DownScan sweep sound waves across the water column, painting detailed images of wrecks, rocks, and weed beds.
And don’t overlook Active Imaging: it bundles CHIRP, SideScan, and DownScan into one transducer for all-encompassing coverage. For charting tricky shallows, ForwardScan is your secret weapon, peering ahead up to eight times your current depth. That’s essential when you’re avoiding hidden hazards. Choose wisely, and you’ll see exactly what’s lurking below, not just a colorful blob.
Chart Coverage Options
Now, after you’ve dialed in your sonar to spot fish and structure, you still need to know exactly where you are and where you’re going. Chart coverage isn’t just a map; it’s your positional guidance system. First, make sure your chartplotter supports the right charts for your stomping grounds, whether that’s inland lakes, coastal waters, or open ocean.
Check for memory card expansion slots. Preloaded charts are great, but you’ll want room for detailed extras later. Look for cartography options like C-MAP, Navionics, or Insight. Each offers unique strengths, but you need one that’s compatible with your device.
Want smarter direction-finding? Seek auto-routing features that build routes based on your chart data. And don’t forget updates. Chart coverage must stay current with the latest corrections and new data, or you’re orientation will be compromised. Don’t settle for static maps!
Transducer Quality Impact
Your chartplotter’s eyes are only as good as the transducer it’s paired with, so don’t skimp here. A high-quality transducer gives you clearer, more detailed sonar images, making underwater target identification a breeze. The frequency range and beam width directly control resolution and coverage area, so match them to your typical depth and water type.
But go further. Advanced CHIRP technology separates multiple targets during fishfinding, giving you precise returns even in crowded spots. You’ll also want a durable transducer built for harsh marine conditions—saltwater and UV exposure won’t kill it. And don’t overlook mounting and cable quality; poor installation introduces signal noise, ruining your integration.
- Choose a wide frequency spread for versatile scanning.
- Prioritize rugged construction for long-term reliability.
- Guarantee clean cable runs for stable transmission.
A quality transducer transforms your chartplotter into a true pro’s tool.
GPS Accuracy Levels
Because GPS accuracy determines whether you’re confidently steering a narrow channel or just guessing your way through it, you need to pay close attention to the refresh rate and signal technology. A 10 Hz refresh rate updates your position ten times per second, giving you buttery smooth tracking at high speeds. Lower frequencies just won’t cut it. For tricky conditions under dense cover or around reflective surfaces, multi-band GPS systems are your best bet. They lock onto multiple frequencies, slashing errors.
Need centimeter level precision? That’s where Differential GPS (DGPS) and Real Time Kinematic (RTK) shine. These aren’t just buzzwords; they deliver pinpoint positioning that’s almost scary accurate. But remember, none of this matters without consistent satellite visibility. Minimize signal interference, and you’ll make the tightest maneuvers look effortless. Don’t settle for guesswork.
Network Connectivity
If you want your chartplotter to talk to your radar, engine, and phone without a tangle of extra cables, network connectivity is where it all comes together. You’ve got solid options: Wi-Fi, NMEA 2000, and Bluetooth. Wi-Fi lets you control navigation and fishfinding from your smartphone or tablet, plus transfer waypoints and sonar data wirelessly. NMEA 2000 takes it further, integrating engine sensors, autopilots, and digital switches into one seamless system. That means real-time engine data right on your screen. Bluetooth pairs with compatible apps like ActiveCaptain or OneChart for software updates and community sharing. So, you’re not just getting a chartplotter; you’re building a marine network. Choose one that supports your gear, and you’ll skip the cable chaos!
Mounting Flexibility
Once you choose a chartplotter with the right network features, you still have to figure out where it goes on your boat. You’ll want multiple mounting options: flush, surface, or bracket. Check if the hardware lets you adjust the angle for perfect visibility and easy reach. That’s critical when you’re underway.
And don’t skip evaluating your available space. The mount must fit your vessel’s design without compromising functionality. Verify it’s waterproof and vibration resistant; a flimsy mount won’t survive rough seas.
Finally, confirm you can remove or reposition the unit easily for maintenance or upgrades. A bracket mount makes this simple, while flush mounts offer a cleaner look but less flexibility. Choose what works for your setup, not just what looks good.
