We have compiled a list of the top best fish finders under 300. Each one has a different cost, style, and style, so you’ll have plenty to pick from. Continue reading for our top review of the best products!
To assist you with your search to find the best fish finders under 300 for you, we’ve created our list of Top fish finders under 300.

Table of Contents

Top 10 Best fish finders under 300 – Review

Comparison Chart of Top 10 Best fish finders under 300

Model Ratings Price
9.1 Check Price
9.6 Check Price
9.2 Check Price
9.5 Check Price
9.1 Check Price
9.9 Check Price
9.4 Check Price
9.0 Check Price
9.1 Check Price
9.9 Check Price


1. HOOK2 4X – 4-inch Fish Finder with Bullet Skimmer Transducer

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HOOK2 4X - 4-inch Fish Finder with Bullet Skimmer Transducer
9.1/10 our score
  • 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.
  • 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.

2. LUCKY Kayak Portable Fish Depth Finder Water Handheld Fish Finder Sonar Castable Kayak Boat Fishfinder Transducer Fishing LCD Display FFC1108

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LUCKY Kayak Portable Fish Depth Finder Water Handheld Fish Finder Sonar Castable Kayak Boat Fishfinder Transducer Fishing LCD Display FFC1108
9.6/10 our score
  • ✦ Fish Finder and Depth Finder : It is a portable fish finder that could display approximate fish location and water depth. The sonar transducer can be attached to the hull of kayak or boat in order to understand the changing of water depth when you are moving by. The water depth detection range is between 3ft(1m) and 328ft (100m) when the transducer is completely immersed in the water.
  • ✦ Helpful Data Display : Besides fish depth and water depth, the handheld fish finder will also display short & tall weeds, sand & rocks on the bottom. Meanwhile, the measurement unit of the depth can be freely switched by feet or meter. The display is also visible in sunshine or darkness by turning on the back light.
  • ✦ Fish & Fish Schools Alarm : Once the toss fish finder transducer into the water and turn on the display unit, you will get alarms when fish or fishing schools passing by. The portable fish finder can be working continuously for at least 4-5 hours with brand new battery. It can be working even longer by turning on battery save mode.
  • ✦ Handheld & Portable : The size of kayak fishfinder is designed for just one hand held. You will find a neck strap in the package which allows you to wear it around neck when you are busy on the kayak or boat. Meanwhile, 5 levels sensitivity adjustment makes fishing possible both in clear water or turbid.

3. Scotty 0163 Ball-Mount Fish Finder and Universal Mounting Plate , Black , Large

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Scotty 0163 Ball-Mount Fish Finder and Universal Mounting Plate , Black , Large
9.2/10 our score
  • Crafted from the highest quality material ensuring quality and durability
  • System with universal plate, Black
  • Made in the U. S. A

4. ReelSonar CGG-MY-IBOBBER iBobber Wireless Bluetooth Smart Fish Finder for iOS and Android devices,Classic,Small

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ReelSonar CGG-MY-IBOBBER iBobber Wireless Bluetooth Smart Fish Finder for iOS and Android devices,Classic,Small
9.5/10 our score
  • Rechargeable battery and charge status indicator light
  • LED beacon
  • Patented sonar fish identifier technology
  • 10+ hrs battery life.Syncs with iOS (Apple) 10.0 and later operating systems and Android 4.3 or later that use Bluetooth Smart (4.0)

5. Garmin Striker Vivid 4cv, Easy-to-Use 4-inch Color Fishfinder and Sonar Transducer, Vivid Scanning Sonar Color Palettes (010-02550-00)

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Garmin Striker Vivid 4cv, Easy-to-Use 4-inch Color Fishfinder and Sonar Transducer, Vivid Scanning Sonar Color Palettes (010-02550-00)
9.1/10 our score
  • Includes built-in Quickdraw Contours mapping
  • High-sensitivity GPS to mark waypoints, create routes and view your boat’s speed
  • Includes a GT20 transducer for built-in Garmin CHIRP traditional sonar and CHIRP ClearVü scanning sonar
  • Easy-to-use 4-inch color fishfinder with new vivid scanning sonar color palettes to easily distinguish fish and structure; tilt/swivel bailmount bracket included

6. Venterior Portable Rechargeable Fish Finder Wireless Sonar Sensor Fishfinder Depth Locator with Fish Size, Water Temperature, Bottom Contour, Color LCD Display

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Venterior Portable Rechargeable Fish Finder Wireless Sonar Sensor Fishfinder Depth Locator with Fish Size, Water Temperature, Bottom Contour, Color LCD Display
9.9/10 our score
  • It detects and displays water depth, water temperature, fish size (small/medium/big), fish depth, and bottom contour. It has Work and Simulation Mode. Measure units of depth and temperature can be converted. Sonar Beam Angle: 90 degree. Depth Range: 2.6-131FT/0.8-40M. Maximum Distance between the sensor and the screen: 262FT/80M.
  • No need to drill hole in your boat hull to install the sensor any more. Two small holes on the sensor allow you to tether with your fishing line and cast it onto water as far as you want.
  • Note: 1. Press and hold 3 seconds to turn on the display. 2. The sensor will turn on automatically when cast into water. 3. When the sensor is off, its battery Indicator on the display is incorerct. Red indicator light on the sensor will turn off when it is fully charged. If you would like to check the sensor’s battery status from the display, please put the sensor in water. It will turn on when it floats on water. The sensor’s battery Indicator on the display will then display correctly.
  • Castable: No more long & heavy cable for transducer. Clear Color Screen: it comes with clear color TFT LCD display (2 screen background colors selectable – black and white), which enables you to read the screen in bright sunlight or at night. It applies to lake, river, sea and other fishing environment. Suitable for fishing from a kayak or boat, casting from the shore or using for ice fishing.

7. Deeper START Smart Fish Finder – Portable Fish Finder and Depth Finder For Recreational Fishing From Dock, Shore Or Bank | Castable Deeper Fish Finder with FREE User Friendly App | Phone Compatible

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Deeper START Smart Fish Finder - Portable Fish Finder and Depth Finder For Recreational Fishing From Dock, Shore Or Bank | Castable Deeper Fish Finder with FREE User Friendly App | Phone Compatible
9.4/10 our score
  • B07BR2FQZN
  • SIMPLE AND EFFECTIVE – This phone fish finder has you fishing in minutes! Simply pair with the Fish Deeper app on your mobile device and instantly see useful data like fish location and size, depth, bottom contour, vegetation and more. Free to download and compatible with iOS and Android devices.
  • SMART TECHNOLOGY – Use innovative, cutting-edge technology to your advantage with our fish finders & depth finders. By generating its own Wi-Fi, our START depth fish finder won’t eat up your mobile data and automatically saves every scan with time and location for easy revisits!
  • IMPRESSIVE SPECS – Our portable sonar fish finder boasts high-level specs that help you make the most of each trip! Casting far out to 165ft and also deep down to 165ft with a 40° sonar beam for ultimate accuracy and coverage. This under water fish finder also has a night fishing mode.

8. WIFI Fish Finder 2.0

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WIFI Fish Finder 2.0
9.0/10 our score
  • This WIFI Fish Finder is especially designed for amateur and professional fishermen alike,to find out the location of fish,depth and bottom contour of water.This WIFI fish finder can be used in ocean,river or lake and is fantastic for detecting schools of fish in any fresh water or salt water.This WIFI Fish Finder is based on Sonar technology,The WIFI transducer sends a sound wave signal ,the returned “echoes” are transmitted with WIFI technology to the IPHONE ,IPAD or other intelligent device ,then all the underwater information is displayed on the screen,including the water depth,water temperature,bottom contour,fish location and depth.

9. Deeper PRO Smart Sonar Castable and Portable Smart Sonar WiFi Fish Finder for Kayaks and Boats on Shore Ice Fishing Fish Finder

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Deeper PRO Smart Sonar Castable and Portable Smart Sonar WiFi Fish Finder for Kayaks and Boats on Shore Ice Fishing Fish Finder
9.1/10 our score
  • GPS MAPPING: Create bathymetric maps from the boat, canoe, kayak. Access all your scans, maps, points of interests, photos and notes on the Fish Deeper app and web platform.
  • REAL-TIME DATA: Two beam frequencies with 15 scans per second. View depth, see bottom structure and consistency, vegetation and fish.
  • HIGH SPECS: Casts out up to 330ft and scans down to 260ft. Precise 2.5cm target separation. Compatible with iOS and Android devices.
  • 4 SEASON FISHING: Versatile fish finder suitable for any season and fishing type. Great for on shore fishing, ice fishing, boat and kayak fishing.

10. LUCKY Portable Fish Finder Handheld Kayak Fish Finders Wired Fish Depth Finder Sonar Sensor Transducer for Boat Fishing Sea Fishing

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LUCKY Portable Fish Finder Handheld Kayak Fish Finders Wired Fish Depth Finder Sonar Sensor Transducer for Boat Fishing Sea Fishing
9.9/10 our score
  • ☀ 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. 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, set up sensitivity, screen brightness, depth range, zoom, depth alarm, fish alarm, fish icon, units(FT/M ℃/℉)alter and language by yourself.
  • ☀ 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. 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.