Quick answer
Our overall pick is the Humminbird XPLORE 9 for its large touchscreen and premium MEGA Side Imaging+ sonar. The other selections suit a range of needs, from detailed GPS chartplotting for serious boat anglers to simple, portable units for kayak and ice fishing.
Choosing among the best fish finders means matching technology to your fishing style. We compared manufacturer specifications for 16 units to highlight the sonar imaging, GPS mapping, and display features that can help you locate fish and navigate waters. This roundup includes models for powerboats, kayaks, and even ice fishing, all based on the features and specs listed by the brands.
Quick picks
- Best Overall: Humminbird XPLORE 9 GPS Fish Finder (see on Amazon)
- Best for Side Imaging: Humminbird Helix 7 G4 GPS Fish Finder (see on Amazon)
- Best Compact GPS Finder: Humminbird Helix 5 G3 GPS (see on Amazon)
- Best Portable Castable Sonar: Deeper PRO+ 2 Sonar (see on Amazon)
16 Best Fish Finders compared
| # | Product | Best for | Display Size | Key Sonar Tech | GPS & Mapping |
|---|---|---|---|---|---|
| 1 | Humminbird XPLORE 9 GPS Fish Finder | Best Overall | 9-Inch Display | MEGA Side Imaging+, MEGA Down Imaging+, Dual Spectrum CHIRP | Built-in GPS with Basemap, includes LakeMaster/CoastMaster VX card, AutoChart Live |
| 2 | Humminbird Helix 7 G4 GPS Fish Finder | Best for Side Imaging | 7-Inch Display | MEGA Side & Down Imaging, Dual Spectrum CHIRP | Built-in GPS with Basemap, compatible with premium charts, AutoChart Live |
| 3 | Garmin Striker Vivid 9sv | Best Large Vivid Display | 9 Inch | Supports CHIRP, ClearVü, SideVü (transducer required) | High-sensitivity GPS, Quickdraw Contours mapping |
| 4 | Lowrance Eagle 7 SplitShot HD | Best for Wide-Angle Viewing | 7 Inch | CHIRP sonar, DownScan, FishReveal | C-MAP DISCOVER charts (US & Canada) |
| 5 | Humminbird Helix 5 G3 GPS | Best Compact GPS Finder | 5-Inch Display | Dual Spectrum CHIRP Sonar | Built-in GPS with Basemap, compatible with premium charts, AutoChart Live |
| 6 | Garmin Striker Vivid 7cv | Best with GT20 Transducer | 7 Inch | CHIRP traditional & ClearVü scanning sonar (GT20 transducer) | High-sensitivity GPS, Quickdraw Contours mapping |
| 7 | Garmin Striker Vivid 7sv | Best for Vivid Scanning Sonar | 7 Inch | Supports CHIRP, ClearVü, SideVü (transducer required) | High-sensitivity GPS, Quickdraw Contours mapping |
| 8 | Garmin Striker 7SV with Transducer | Best with Built-in Wi-Fi | 7″ | CHIRP traditional & ClearVü scanning sonar (transducer included) | Built-in GPS, Quickdraw Contours, Wi-Fi for ActiveCaptain |
| 9 | Lowrance Eagle 5 SplitShot HD | Best Compact with C-MAP Charts | 5 Inch | CHIRP and DownScan with FishReveal | C-MAP Inland Charts, Genesis Live mapping |
| 10 | Lowrance HOOK Reveal 5 SplitShot | Best with Autotuning Sonar | 5 Inch SplitShot | CHIRP and DownScan with FishReveal, Autotuning | Preloaded C-MAP US Inland Mapping, Genesis Live |
| 11 | Garmin Striker 4 | Practical Option | 3.5 | CHIRP Sonar, ClearVü scanning sonar | Waypoint map |
| 12 | Lowrance Eagle 4X | Best Simple Sonar for Small Boats | 4 Inch | 200 kHz wide-angle sonar | Not listed |
| 13 | Humminbird PiranhaMAX 4 | Best Basic Dual Beam Finder | One Size | Dual Beam Sonar | Not listed |
| 14 | Venterior Portable Wired Fish Finder | Best Simple Wired Depth Finder | Not listed | 45-degree beam angle sonar | Not listed |
| 15 | Deeper PRO+ 2 Sonar | Best Portable Castable Sonar | 9 hour battery life | Wide, mid, narrow beam sonar | Built-in GPS for bathymetric mapping |
| 16 | Venterior Portable Wireless Fish Finder | Best Wireless for Multiple Environments | Not listed | Wireless sonar sensor | Not listed |
How we chose
We compared manufacturer listings and specifications on Amazon as of October 2026. We did not test or use any product hands-on. Our selections are based on comparing listed features such as sonar technology, GPS capabilities, display size, and included mapping.
Premium GPS Chartplotters with Advanced Imaging
These units feature large displays, detailed mapping, and high-definition side and down imaging sonar for serious boat anglers.
1. Best Overall: Humminbird XPLORE 9 GPS Fish Finder
Pros
- 9-inch Full HD touchscreen with keypad
- Identical MEGA imaging sonar as the XPLORE 10
- Includes real-time AutoChart Live mapping
Cons
- The listing does not mention compatibility with third-party radar or audio systems.
The Humminbird XPLORE 9 is our overall pick for its premium feature set. It has a 9-inch Full HD touchscreen with keypad controls. Its sonar includes MEGA Side Imaging+ with a 200-foot range on each side and MEGA Down Imaging+ reaching 200-foot depths, plus Dual Spectrum CHIRP. For navigation, it has built-in GPS with the Humminbird Basemap covering over 10,000 lakes and includes LakeMaster and CoastMaster VX map cards. It also features AutoChart Live for creating real-time maps.
Best for: Anglers who want a large-screen, feature-rich chartplotter with top-tier imaging sonar.
2. Best for Side Imaging: Humminbird Helix 7 G4 GPS Fish Finder
Pros
- MEGA Side & Down Imaging with 125-foot range
- Dual Spectrum CHIRP sonar for detailed views
- AutoChart Live for creating custom maps
Cons
- The listing does not mention Wi-Fi connectivity for software updates.
The Humminbird Helix 7 G4 features MEGA Side and Down Imaging technology, providing views 125 feet to each side and directly beneath the boat with detailed imaging. It uses Dual Spectrum CHIRP sonar with wide and narrow modes. For navigation, it is equipped with the Humminbird Basemap covering 10,000+ lakes and coastlines and is compatible with premium charts. It also includes AutoChart Live for real-time mapping.
Best for: Boat anglers who prioritize detailed side and down imaging on a midsize display.
3. Best Large Vivid Display: Garmin Striker Vivid 9sv
Pros
- 9-inch vivid color display
- Supports CHIRP, ClearVü, and SideVü sonar
- Built-in Quickdraw Contours mapping
Cons
- Requires a compatible transducer for scanning sonar.
The Garmin Striker Vivid 9sv features a large 9-inch color display with vivid scanning sonar color palettes. It supports Garmin CHIRP traditional sonar plus CHIRP ClearVü and CHIRP SideVü scanning sonars, requiring a compatible transducer. It includes high-sensitivity GPS for navigation and built-in Quickdraw Contours mapping.
Best for: Anglers who want a large, vivid display with support for advanced scanning sonars.
4. Best for Wide-Angle Viewing: Lowrance Eagle 7 SplitShot HD
Pros
- 7-inch IPS screen for sunlight and wide angles
- SplitShot HD with FishReveal
- Includes C-MAP DISCOVER card for US and Canada
Cons
- The listing does not mention side imaging.
The Lowrance Eagle 7 SplitShot HD features a bright 7-inch IPS screen designed to be viewed in direct sunlight and at wide angles. The SplitShot HD transducer combines CHIRP sonar and DownScan Imaging, with FishReveal to highlight fish. It includes a C-MAP DISCOVER microSD card for inland and coastal coverage across the U.S. and Canada.
Best for: Anglers who need a sunlight-readable screen with broad U.S. and Canada chart coverage.
5. Best Compact GPS Finder: Humminbird Helix 5 G3 GPS
Pros
- Compact 5-inch display size
- Dual Spectrum CHIRP sonar
- Supports AutoChart Live mapping
Cons
- The listing does not mention side imaging or down imaging technology.
The Humminbird Helix 5 G3 is a compact fish finder with a 5-inch display and Dual Spectrum CHIRP Sonar with wide and narrow modes. It includes enhanced GPS navigation with the Humminbird Basemap covering 10,000+ lakes and coastlines and is compatible with premium charts. It also features AutoChart Live for real-time mapping.
Best for: Anglers wanting capable GPS chartplotting and CHIRP sonar in a compact, space-saving unit.
Versatile Fish Finders with GPS and Scanning Sonar
These finders offer a balance of GPS navigation, scanning sonar like ClearVü or SideVü, and built-in mapping for various fishing styles.
6. Best with GT20 Transducer: Garmin Striker Vivid 7cv
Pros
- Includes GT20 transducer for CHIRP and ClearVü
- Vivid scanning sonar color palettes
- Built-in Quickdraw Contours mapping
Cons
- The listing does not mention SideVü scanning sonar capability.
The Garmin Striker Vivid 7cv is an easy-to-use 7-inch color fishfinder that includes a GT20-TM transducer. This provides built-in Garmin CHIRP traditional sonar and CHIRP ClearVü scanning sonar. It features new vivid scanning sonar color palettes to help distinguish fish and structure. It has high-sensitivity GPS for marking waypoints and includes built-in Quickdraw Contours mapping software.
Best for: Anglers wanting a vivid display with both traditional and ClearVü scanning sonar included.
7. Best for Vivid Scanning Sonar: Garmin Striker Vivid 7sv
Pros
- Supports CHIRP, ClearVü, and SideVü scanning sonar
- Vivid color palettes
- Built-in Quickdraw Contours mapping
Cons
- Requires a compatible transducer for scanning sonar; not included per listing.
The Garmin Striker Vivid 7sv is a 7-inch color fishfinder that supports Garmin CHIRP traditional sonar plus CHIRP ClearVü and CHIRP SideVü scanning sonars, though it requires a compatible transducer. It uses new vivid scanning sonar color palettes. It includes high-sensitivity GPS for marking waypoints and built-in Quickdraw Contours mapping software.
Best for: Anglers looking for a unit capable of vivid SideVü and ClearVü scanning (transducer not included).
8. Best with Built-in Wi-Fi: Garmin Striker 7SV with Transducer
Pros
- Includes transducer for CHIRP and ClearVü
- Built-in Wi-Fi for ActiveCaptain app
- Quickdraw Contours mapping software
Cons
- The listing does not mention SideVü scanning sonar.
The Garmin Striker 7SV includes a transducer for built-in Garmin CHIRP traditional sonar plus CHIRP ClearVü scanning sonar. It features a 7-inch display and built-in Wi-Fi for access to the ActiveCaptain app, allowing for smart notifications and community map sharing. It also has built-in GPS and Quickdraw Contours mapping software to create maps with 1-foot contours.
Best for: Anglers who want Wi-Fi connectivity for updates and community maps.
9. Best Compact with C-MAP Charts: Lowrance Eagle 5 SplitShot HD
Pros
- Includes C-MAP charts for over 17,000 U.S. lakes
- FishReveal combines CHIRP targets with DownScan
- 5-inch IPS display for clear viewing
Cons
- The listing does not mention side imaging capability.
The Lowrance Eagle 5 SplitShot HD has a compact 5-inch IPS display. Its SplitShot HD transducer combines CHIRP sonar with DownScan Imaging, and FishReveal places fish targets on the DownScan image. It includes autotuning sonar and comes with C-MAP inland charts providing coverage of over 17,000 American lakes.
Best for: Kayak or small boat anglers wanting detailed lake charts and DownScan imaging in a compact unit.
10. Best with Autotuning Sonar: Lowrance HOOK Reveal 5 SplitShot
Pros
- FishReveal for combined CHIRP and DownScan views
- Autotuning sonar
- Preloaded C-MAP US inland mapping
Cons
- The listing does not mention GPS waypoint marking.
The Lowrance HOOK Reveal 5 SplitShot features a 5-inch display and the FishReveal function that combines CHIRP sonar with DownScan Imaging. It has autotuning sonar that adjusts settings automatically. It comes preloaded with C-MAP US inland mapping for nearly 4,000 lakes and supports Genesis Live for creating custom contour maps.
Best for: Anglers who want sonar that automatically tunes itself for optimal performance.
Compact and Entry-Level Sonar Units
These are smaller, straightforward fish finders ideal for smaller boats, kayaks, or anglers who want essential sonar functions.
11. Practical Option: Garmin Striker 4
Pros
- Simple keyed interface with dedicated buttons
- CHIRP and Clear Vu scanning sonar
- IPX7 water rating
Cons
- The listing does not mention mapping or chart compatibility beyond the waypoint map.
The Garmin Striker 4 is an easy-to-use fishfinder with a 3.5-inch display and a keyed interface. It includes a transducer for CHIRP sonar and ClearVü scanning sonar, which provides near-photographic images. It has a waypoint map for marking locations and is rated IPX7 for water resistance.
Best for: Beginners or anglers on a smaller craft wanting essential CHIRP and ClearVü sonar.
12. Best Simple Sonar for Small Boats: Lowrance Eagle 4X
Pros
- 4-inch IPS screen visible in sunlight
- Auto-Tuning Sonar for easy use
- 44-degree wide-angle transducer beam
Cons
- The listing does not mention any GPS or mapping functionality.
The Lowrance Eagle 4X features a 4-inch IPS portrait screen designed for visibility in sunlight. It includes a 200 kHz Bullet Skimmer transducer that delivers a broad 44-degree beam for wide coverage. It has auto-tuning sonar and displays fish icons with depth.
Best for: Kayak or small boat anglers who need a simple, wide-coverage sonar with a sunlight-readable screen.
13. Best Basic Dual Beam Finder: Humminbird PiranhaMAX 4
Pros
- Dual Beam Sonar
- Includes tilt and swivel mount
- 1-year limited warranty
Cons
- The listing does not mention GPS.
The Humminbird PiranhaMAX 4 is a basic fish finder with Dual Beam Sonar, allowing you to choose between a narrow and a wide beam. It comes with a tilt and swivel mount for easy adjustment and includes a transom-mount transducer. It is backed by a 1-year limited warranty.
Best for: Anglers looking for a straightforward, no-frills dual-beam sonar for general fish finding.
14. Best Simple Wired Depth Finder: Venterior Portable Wired Fish Finder
Pros
- Shows depth, fish location, and bottom composition
- Very portable with neck strap
- Simple operation
Cons
- Wired connection between sensor and display.
The Venterior Portable Wired Fish Finder is a simple unit with an LCD display connected by a wire to a sensor. It shows water depth, approximate fish location and size, and indicates bottom composition like weeds or sand. It has a detectable depth range from 3 to 328 feet and includes a neck strap for portability.
Best for: Anglers who need a basic, easy-to-use depth and fish locator for kayaks or shore fishing.
Portable and Wireless Fish Finders
These are self-contained, battery-powered units designed for casting from shore, use on kayaks, or for ice fishing.
15. Best Portable Castable Sonar: Deeper PRO+ 2 Sonar
Pros
- Creates GPS bathymetric maps.
- Connects to your smartphone.
- Very portable and castable.
Cons
- Requires a smartphone and app to function.
- Battery life is limited to the unit's charge.
The Deeper PRO+ 2 is a portable, castable fish finder that connects to a smartphone app via its own Wi-Fi. It uses wide, mid, and narrow sonar beams with an accuracy up to 330 feet and has built-in GPS for creating bathymetric maps from shore or a boat. It is suitable for kayak, boat, and ice fishing.
Best for: Shore anglers, kayakers, and ice anglers who want a portable, mapping-capable sonar.
16. Best Wireless for Multiple Environments: Venterior Portable Wireless Fish Finder
Pros
- Wireless sensor up to 262 feet
- Shows depth, temperature, fish size, bottom contour
- Suitable for ice fishing
Cons
- The listing does not mention GPS or mapping capabilities.
The Venterior Portable Fish Finder has a wireless sonar sensor that transmits to a handheld display unit up to 262 feet away. It detects water depth, temperature, fish size, and bottom contour on a color display. It is suitable for use from kayaks, shore, boats, and for ice fishing.
Best for: Anglers who want a versatile, wireless sonar for fishing from kayaks, shore, or through the ice.
How to choose the best fish finder
Selecting the best fish finder depends on where you fish and what information you need. The core technology is sonar, which uses sound waves to create an image of what’s below your boat. More advanced units add GPS for navigation and mapping, while display size and type affect readability in different conditions.
What to look for
- Sonar Type: Basic models use traditional or dual-beam sonar. For more detail, look for CHIRP sonar, which provides clearer fish arches. Down imaging and side imaging sonar, like Humminbird’s MEGA Imaging or Garmin’s ClearVü/SideVü, offer near-photographic views of structure and the bottom.
- GPS and Mapping: Built-in GPS lets you mark productive spots (waypoints) and navigate back to them. Many units include base maps of lakes and coastlines. More advanced features like AutoChart Live or Quickdraw Contours allow you to create your own detailed depth maps as you fish.
- Display: Screen size and quality matter for visibility. Larger screens (7 inches and up) show more detail, while IPS technology improves viewing in bright sunlight and at angles. Consider if you prefer touchscreen controls or physical buttons.
- Portability: For kayak, shore, or ice fishing, a portable, battery-powered unit like a castable sonar or a simple wired finder may be the most practical choice. These often connect to a smartphone app or have a small dedicated display.
Always follow the manufacturer’s manual for installation and safe operation, especially concerning electrical connections on a boat. For more on choosing gear for different watercraft, see our guide on the best fishing kayaks.
FAQ
What is the difference between CHIRP sonar and traditional sonar?
CHIRP (Compressed High-Intensity Radiated Pulse) sonar sends a continuous sweep of frequencies, which provides a wider range of information and typically results in crisper fish arches with better separation between close targets. Traditional sonar uses a single frequency pulse.
Do I need a fish finder with GPS?
GPS is highly useful if you want to mark specific fishing spots (like brush piles or drop-offs), create routes, or navigate back to a location. It’s essential for using detailed mapping software. If you primarily fish familiar, small bodies of water, a basic sonar-only unit may suffice.
Can I use a fish finder for ice fishing?
Yes, but you need a unit designed for it or one that is portable. Some castable sonars are listed as suitable for ice fishing. Traditional boat units are not typically portable for ice use unless specifically designed with a portable power source and ice transducer.
What does ‘side imaging’ do?
Side imaging sonar uses sound waves projected to the sides of your boat to create detailed images of structure, contours, and fish up to several hundred feet away on either side. This helps you locate promising areas that are not directly under your boat.
References
- Amazon product listings and manufacturer specifications (accessed October 2026)
- Take Me Fishing
- U.S. Fish and Wildlife Service – Fish and Aquatic Conservation
- National Weather Service – Safety
