10 Best Fish Finder For Small Boat of December 2025

• 【Fishes and Contour Readout】The fish finder portable detects and displays water depth, approximate fish location, fish size, short & tall weeds, sand & rocks on bottom.
• 【Suitable for Various Fishing Ways】It can be used for off shore fishing, kayak fishing, ice fishing, lake fishing, sea fishing , river fishing, and so on. It will be one of your best fishing accessories.
• 【Depth Readout】 The fish finder portable detector range is in a 45°cone underwater. The detection of depth range is from 3ft(1m) to 328ft (100m) below fishing sonar transducer. The fishing sonar sensor is with 25 ft cable and removable transducer float. Water depth shows by meters/feet.
• 【Powerful Functions】5 modes sensitivity options; battery save mode; backlight mode; fish alarm; unit of measure. Normally fishing depth finder supports 4-5 hours continuous working with brand new batteries. Open battery save mode can be working even longer.
• 【Package Included】1. Fish Finder Display 2. Sonar Sensor (Transducer) with 25ft cable 3. Removable Transducer Float with Rubber Stopper 4.Transducer Side-Scan Adapter 5. Stainless Bolt and Wing Nut 6.Neck Strap 7.Operation Manual.

RICANK

• ☀ The portable fish finder, with updated 2.4inch TFT color LCD screen(more clear to display), can detect and display underwater contour, water depth, water temperature and fish size(big/middle/small) and fish depth. It has two user modes: TRANSDUCER/SIMULATION. You can try all functions in simulation mode and go fishing in transducer mode.
• ☀ Lucky fish finder portable provides you 26FT wired operating distance and 328FT depth detection. Kayak fish finders has 45° beam angle with 200Khz in detection.
• ☀ The fish finder portable is rechargeable. Come with USB cable for charging. The fish depth finder can work continuously about 5 hours with full charge. The brightness of the display can be adjusted. So you can read the data either at night or in the sunlight easily.
• ☀ Various features settings: Lucky portable fish finder is with updated underwater contour display(3 kinds of display you can choose, more clear and professional). Also, you can set up sensitivity, screen brightness, depth range, zoom, depth alarm, fish alarm, fish icon, units(FT/M ℃/℉)alter and language by yourself.
• ☀ You can go fishing with the fish depth finder in different ways, such as ice fishing, river fishing, sea fishing, shore fishing, kayak fishing, etc. The bracket allows you to attach the sensor transducer to your boat or kayak.

LUCKY

• Includes transducer for built-in Garmin CHIRP traditional sonar plus CHIRP ClearVü scanning sonar
• Built-in Garmin Quickdraw Contours mapping software lets you create and store maps with 1’ contours for up to 2 million acres
• Built-in GPS lets you mark waypoints, create routes and view boat’s speed. Frequencies supported : Traditional: 50/77/200 kHz
• Bright, sunlight-readable 5” display and intuitive user interface
• Rugged design for every fishing environment. Display resolution: 800 x 480 pixels

Garmin

• Display Size Diagonal - 4.3-Inch
• Dual Beam Sonar
• 2400 watts PTP/300 Watts RMS
• Depth Sonar 320 ft (20) 455 kHz, 600 ft (20) 200 kHz
• Sonar Coverage 28° & 16° @ -10dB

Humminbird

• 5-Inch Color WVGA Display
• Precision Internal GPS Chart plotting with built-in Anima cartography
• Micro SD card slot for optional maps or for saving waypoints
• Target Separation - 2.5 Inches
• CHIRP Dual Beam PLUS Sonar. Power Output RMS : 500 Watts. Power Draw : 615 mA

Humminbird

• EASY TO USE: The Lowrance HOOK2 4x Fish Finder features auto-tuning sonar and phone-like menus giving you more time to spend fishing and less time dealing with settings.
• WIDER SONAR COVERAGE: The HOOK2 4x offers a wide-angle sonar cone giving you double the coverage of traditional fish finders.
• EASY SETUP: A single transducer can be mounted on the transom, inside the hull, on the trolling motor or through a scupper hole.
• TRANSDUCER INCLUDED: The included Bullet Skimmer transducer gives you traditional 2-D sonar (fish arch) views.

Lowrance

• EASIEST TO USE: The Lowrance HOOK2 4x Fish Finder features auto-tuning sonar and phone-like menus giving you more time to spend fishing and less time dealing with settings.
• WIDER SONAR COVERAGE: The HOOK2 4x offers a wide-angle CHIRP sonar cone giving you double the coverage of traditional fish finders.
• EASY SETUP: A single transducer can be mounted on the transom, inside the hull, on the trolling motor or through a scupper hole. The HOOK2 4x is ideal for small fishing boats or kayaks with limited console space.
• FISH FINDER & GPS: The HOOK2 4x provides basic navigation with a GPS plotter that allows you to add waypoints, follow trails, and navigate.
• TRANSDUCER INCLUDED: The included Bullet Skimmer transducer gives you traditional 2-D CHIRP sonar (fish arch) views.

Lowrance

• ◆ Default Data Setting for Various Fishing Mode : You can freely choose General Mode, Shallow Mode, Slope Mode, Raft Mode or Ice Fishing Mode according to your fishing environment. The related setting data was built-in different fishing modes accordingly. It is a concerned design for fishing beginners. The kayak fish finder can also remember before setting when you turn it on.
• ◆ Depth and bottom contour Readout : Kayak depth finder detects and displays water depth (max 328ft/100m), approximate fish location, short & tall weeds, sand & rocks on bottom. 2.2 inch LCD display offers you wide, clear and sun-visible visual experience.
• ◆ Fish Alarm and temperature/air pressure Readout : Kayak fish finder cannot only alert when fish or fish schools appear, but it also helps you distinguish small fish and large fishes. Meanwhile, you can read both air temperature and water temperature on the display. Air pressure is readable as well. LUCKY fish finders for boats help you to find out the relations between the fish and weather.
• ◆ Convertible Triple Suction Cup Mount : The kayak fish finder is fixed firmly to any smooth surface by the mount. Meanwhile, you can change to any other mount by the 1/4 inch standard screws, for example, tripod Mount, tube mount and so on.
• ◆ Wide Applications : LUCKY kayak fish finder is an ideal fish finder for boats fishing, kayak fishing, canoe fishing and float tube fishing. It is a good kayak depth finder for boating. It will help you get more fishes in sea fishing, ice fishing, shore fishing and other fishing circumstances.

LUCKY

• ◆ Fishes and bottom contour readout: LUCKY fish finder portable detects and displays water depth, approximate fish location, short & tall weeds, sand & rocks on bottom. Fish finder portable design gives you another option to hang it around neck.
• ◆ The kayak fish finder suits for variety fishes fishing environments: It can be used for off shore fishing, kayak fishing, ice fishing, lake fishing, sea fishing and so on. You can also use handheld fish finder on the moving kayak with speed below 5mph.
• ◆Depth readout: The fish finder portable detector range is in a 45°cone underwater. The detection of depth range is from 3ft(1m) to 328ft (100m) below fishing sonar transducer. The water depth can be shown either in feet or meter. The fishing sonar sensor is with 25 ft cable and removable transducer float.
• ◆ Small portable fish finder with powerful functions: 5 modes sensitivity options; battery save mode; backlight mode; fish and fish school alarm. Normally fishing depth finder supports 4-5 hours continuous working with brand new batteries. Open battery save mode can be working even longer.
• ◆ Warranty Policy: We offer 12 months warranty for LUCKY fish finder portable. It will be one of your best fishing kayak accessories. Any questions before or after purchase, please feel free to contact us via Amazon message (response within 24 hours every day online).

LUCKY

• Clear Vu scanning Sonar shows you more of what is in the water around your boat; This high frequency sonar gives near photographic images with detailed representations of objects, structure and fish
• The power of simple offers a keyed interface with dedicated buttons; The device is easy to use and easy to install; Available in 3.5, 5 and 7 inch display sizes; Water rating IPX7
• Waypoint map: Use the way point map to easily view, mark and navigate to locations such as brush piles, stumps and docks; Maximum depth 1,600 feet freshwater, 750 feet saltwater; Current draw at 12 volt: 0.23 Ampere
• Chirp Sonar sends a continuous sweep of frequencies which provides a wider range of information; Chirp Sonar is able to create crisper fish arches with better target separation
• Built in flasher: View your sonar data in the classic flasher format; Ideal for ice fishing or vertical jigging. Display size: 1.9 x 2.9 inches (4.9 x 7.3 centimeter); 3.5 inches diagonal (8.7 centimeter)

Garmin