Castable fish finders are fun tools for the modern fisherman. They not only help you find fish, but they connect to an LCD device or apps so that you can see what’s happening live and keep a record of your fishing adventures.
A castable fish finder means you can put it exactly where you think the fish are hiding and get a complete picture of the area. No fish will ever be safe from your hooks ever again!
We’ve uncovered seven excellent fish finders that can help you fish smarter rather than harder. Let’s look a little closer at the features of the best castable fish finders on the market today.
Top 7 Castable Fish Finders
- Deeper PRO+ Smart Sonar Fish Finder
- iBobber Bluetooth Smart Fish Finder
- Garmin Striker Cast
- Deeper Start Smart Fish Finder
- Lucky Sonar Wireless Castable Fish Finder
- Vexilar SonarPhone Castable Fish Finder
- Venterior Portable Rechargeable Fish Finder Wireless Sonar Sensor
Deeper PRO+ Smart Sonar Fish Finder
The Deeper PRO+ Smart Sonar Fish Finder casts as far as 330 feet out, and it can scan 260 feet down for fish. This sonar fish-finder provides real-time data to let you see what’s underneath the water.
The scanner is small, only weighing 3.5 oz (100 g) and measuring 2.5 inches (6.35 cm) across. Its 2-beam scanner can scan a 15° and 55° area downward, and it can identify target fish separated by 1 inch (2.5 cm), and make depth and temperature readings.
The Deeper PRO+ has built-in GPS and creates bathymetric maps, syncing to the Fish Deeper app on your device with no internet access necessary. You can also use the app and cloud-based data to access all your data history.
iBobber Bluetooth Smart Fish Finder
The iBobber Bluetooth Smart Fish Finder can make accurate sonar scans 100 feet out and 135 feet deep. Choose from a raw sonar structure contour view or the fish-tagging view that color codes by fish size.
They claim to be the smallest finder on the market. It doubles as a regular fishing bobber when you’re not using it for sonar readings. You can also fish for 10 hours or more on a single charge.
The iBobber syncs with an app and also works with smart watches.
The app has an interactive map that allows you to tag spots and log your trip with information about when you were there, temperature, lure type, fish quantity, and fish type. It also includes a lunar calendar and weather information.
Garmin Striker Cast
The Garmin Striker Cast has a traditional 2-D mode and an ice-fishing flasher mode. It’s easy to cast with a 20-pound+ weight fishing line. It works in freshwater, and below the ice to show structures and fish in the water around you.
You can use your mobile device to stream data from the Garmin up to 200 feet away. The finder works with the STRIKER Cast app on smart devices to stream live sonar information and locate fish. The Garmin Quickdraw Community has downloadable maps with up to 1-foot contours.
The USB-rechargeable battery lasts 10+ hours on a charge, and powers off automatically when you remove it from the water.
A version with GPS and ones that include a bonus fish scale or cell mount for your fishing rod also exist.
Deeper Start Smart Fish Finder
The castable Deeper Start Smart Fish Finder only weighs 2.3 oz (65g) and is 2.3 inches (60 mm) high, so the small size makes it easy and comfortable to cast. It has a 40° sonar scanning beam that can scan 165 ft (50 m) wide and deep.
The fish finder transmits data to the Deeper app on your mobile smart device concerning fish location, size, water depth, and contours of underwater structures and vegetation. Each scan automatically saves to the app with time and location stamps. It also comes with a user-friendly instruction manual.
This fish finder includes an automatic night fishing mode. The battery only lasts 6 hours and has a 2.5-hour recharge time.
Lucky Sonar Wireless Castable Fish Finder
The LUCKY Wireless Castable Fish Finder is lightweight, measuring 3 x 2.2 inches (7.6 x 5.6 cm) and weighing 1.6 oz (45 g). The 90° sonar beam angle can detect down 130 feet. You can either tie the smart fish finder to a line or an RC boat.
This fish finder includes a 2.4 x 5.3 x 1.2 inch (6.1 x 5.3 x 3 cm) handheld device that provides all the data you need including a fish alarm and water depth. It has an operating range of 393 feet.
It also displays the location of weeds, rocks, and fish. You can also use it for night fishing since the handheld device has a backlight.
The castable fish finder uses a CR2032 cell battery, while the handheld device uses four AAA batteries (included) and has a battery-save mode. Unfortunately, you’ll have to replace the batteries after six hours of continuous use.
Vexilar SonarPhone Castable Fish Finder
The Vexilar SonarPhone Castable Fish Finder is a heavier fish finder, weighing 14.1 oz (400 grams).
It transmits information to an app on your phone, displaying it with a map of the area. You can see the underwater topography, water depth, and water temperature. It’s accurate within one foot when indicating depth. It also shows the difference between individual fish and schools.
It comes with a neoprene armband that you can use for easier phone access while fishing.
The pod has a rechargeable lithium-ion battery with only a 4-hour battery time. So, on a longer trip, you’ll want to take the fish finder out of the water to save battery when you’re not actively using it.
Venterior Portable Rechargeable Fish Finder Wireless Sonar Sensor
This fish finder measures 2.75 inches (83.8 cm) across. The 90° sonar beam angle can measure down 2.6 to 131 feet (0.8 to 40 m).
The fish finder pod comes with a handheld device with an LCD display that you can view up to 262 feet (80 m) away. It allows you to see water depth, temperature, fish depth, and bottom contours.
The pod only activates when in the water, and both the pod and receiver are rechargeable. It also comes with a 2-year warranty.
If you’re looking for the best castable fish finder, there are several great choices. Modern sonar fish finder pods use internal wi-fi and don’t require internet or cellular service to transmit information to your viewing device.