Choosing a sonar navigation setup for your boat or kayak usually comes down to a simple question: do you want to cast a small transducer from shore, or mount a larger display at the helm? The four fish finders here take different approaches, from a handheld castable sonar to a fixed side-imaging GPS combo. Your watercraft, phone, and mounting preference will point you to the right one. Before you buy, think about whether you want a dedicated screen, a phone-connected readout, or a hand-held unit you can carry in a tackle box.
Quick Take
- The LUCKY Portable Fish Finder is the entry handheld sonar in the group.
- The Portable Waterproof Wired Fish Finder combines a waterproof body with a dedicated depth display.
- The Deeper Smart Sonar PRO+ 2 is an app-connected castable unit for mobile screens.
- The Humminbird 698ci is the largest-display sonar combo in the set.
Listed Price Comparison
| Product | Listed Price | Price Bar |
| LUCKY Portable Fish Finder | USD 32.99 | |
| Deeper Smart Sonar PRO+ 2 | USD 199.00 | |
| Portable Waterproof Wired Fish Finder | USD 246.99 | |
| Humminbird 698ci | USD 359.00 | |
Decision Matrix
| Scenario | Recommended Pick | Why It Fits |
| Cast from shore or kayak | Deeper Smart Sonar PRO+ 2 | Wi-Fi castable design with built-in GPS |
| Keep a wired display on a small boat | Portable Waterproof Wired Fish Finder | Waterproof body, 2.4-inch TFT, 328-foot depth rating |
| Mount a sonar/GPS combo in the cockpit | Humminbird 698ci | 5-inch color display and side imaging |
| Simple handheld sonar at the lowest listed price | LUCKY Portable Fish Finder | Castable transducer with LCD display |
LUCKY Portable Fish Finder
At the lowest listed price in the group, this handheld sonar gives you a castable transducer and an LCD display in a yellow plastic housing. It runs on batteries and is aimed at outdoor fishing. The condition is used, which is the main factor to weigh before buying. The compact form keeps the setup simple. If you want a minimal way to test castable sonar, this is the most direct hand-held route. The trade-off is that you are getting a used unit rather than a new castable, so confirm the display works for your needs.
Portable Waterproof Wired Fish Finder
This model is a wired, waterproof fish finder with a 2.4-inch color TFT display and a battery-powered design. Its maximum measuring depth of 328 feet makes it useful for deeper waters around boats and kayaks. The thru-hull mount points to a more permanent installation than a castable puck. Merchant j-ySBQ53TC has it in the middle of the listed price range. The wired transducer means the sensor stays attached to the display, so it is not a cast-and-retrieve system. Choose it when you want a dedicated screen with depth data rather than a phone-connected sonar.
Deeper Smart Sonar PRO+ 2
The Deeper Smart Sonar PRO+ 2 is the castable option for anglers who already fish with a phone or tablet. It connects over Wi-Fi, includes built-in GPS for bathymetric mapping, and uses triple beam sonar. It has a 330-foot casting range and 330-foot scanning depth, with fresh- and saltwater use. It is listed as new, and the Fish Deeper app handles the readout. Because it is castable, there is no fixed display to install on the boat. The trade-off is that your phone becomes the screen, which matters if you prefer a dedicated head unit at the helm.
Humminbird 698ci
The Humminbird 698ci is the most display-heavy unit in this set. It bundles side imaging, down imaging, chartplotting, and a 5-inch color screen with a 640 x 480 resolution. It includes a transom mount transducer, mounting brackets, installation hardware, and connection cables. Condition is new other: the unit has never been used, but the box shows shelf wear. It also includes features like backlight, depth alarm, and speed/temperature readings. This is the model to choose when you want a permanently mounted combo rather than a portable or phone-based fish finder. The listed price is the highest of the four, reflecting that larger display and imaging package.
Final Recommendation by Use Case
- For casting from shore or kayak: the Deeper Smart Sonar PRO+ 2 at $199.00.
- For a wired display on boats and kayaks: the Portable Waterproof Wired Fish Finder at $246.99.
- For a mounted sonar with side imaging: the Humminbird 698ci at $359.00.
- For the lowest listed price in this group: the LUCKY Portable Fish Finder at $32.99.
