Best Portable Fish Finder

Fishing has a lot to do with endurance and patience, sitting and waiting for the fish to bite the bait, but that was back in the 90s; in 2021, with the advanced technology, you don’t need to worry about the time or wait for the fish. Even if you’re a newbie at fishing you can catch fish and enjoy the experience with the portable fish finders working on the sonar technology. These fish finders will allocate the exact location for you to hunt down more of the fishes with their GPS combo packs. Portable fish finders are more comfortable to use as they are almost weightless and wireless, and adding more to it some portable fish finders are equipped with the feature of identifying the type of fish therefore making it more useful and handy to grab the necessary and required fishing equipment.

The article focuses on the best portable fish finders that are inexpensive and easy to buy, with the benefits of using the fish finders in any location, whether on a bank or shore. Moreover, these fish finders are easily moveable, and some models could even fit in your pocket, making them more advantageous to use on float tubes, canoes, Jon boats, and kayaks.

Top 6 Best Portable Fish Finder


Among the most popular fish finders on the market today, you will find the Garmin Striker 4. In addition to having a small, easily portable size, it has many new and improved features that make it a worthy purchase. It sends CHIRP sonar waves continuously to scan the area for fish. As a result, we get a much clearer picture of what lies beneath. It can provide water temperature and has a maximum depth of 1600 feet in freshwater or 750 feet in saltwater. By marking specific areas and fishing spots on your waypoint map, you can find future fishing locations and target them. It is ideal for kayaking and canoeing because of the portable carrying kit included.

  • Integrated GPS
  • Mark specific points on the map
  • Good quality transducer
  • The transducer included is not specialized for ice fishing
  • Must be plugged into a 12V battery
  • No backlight


Deeper Pro+ smart sonar is an outstanding fish finder that fits in the palm of a hand and has many high-end features. Despite its small size, this fish finder is packed with castability and awesome features that make the Deeper Pro+ is one of the best portable fish finders, regardless of your level of expertise. It uses powerful sonar to detect fish and bottom contours. In combination with your smartphone’s GPS, the unit can provide detailed maps that can be viewed remotely. With a range of 330 feet, the device can scan up to 260 feet underground. The versatile deeper pro+ can be best used on boat, shore, or ice fishing.

  • Wi-Fi connectivity
  • Dual-beam sonar
  • USB charger
  • Short battery life
  • Connection difficulties
  • Lacking durability


VT-FF001 has you covered if your pockets aren’t full of cash and you’re looking for something practical, but also simple. It has a primary LCD that is anti-UV greyscale. Despite its lack of colors, its backlit mode is worth praising for night fishing. It is also possible to use your fish finder in energy-saving mode if you intend to stay out on the water for a long time. In addition to fish location and depth, it shows water depth and warns you of rocks and weeds. The fish finder comes with a neck strap that you can put around your neck to wear anywhere while you’re fishing, and it even has a fish alarm.

  • Backlight mode
  • 200 kHz sonar with 4 AAA batteries
  • Fish alarm
  • The screen is not waterproof
  • You need to make sure you’re moving less than five miles per hour.
  • Only one frequency setting


You need a fish finder like the Humminbird Piranhamax 4 PT if you’re a professional angler or wish to take your game to the next level. This model comes with dual-beam sonar technology that offers maximum detail when it comes to fishing. This information is then displayed on the device’s 4.3-inch color display, so you’ll never miss a thing. One of the key features of the Piranhamax 4 PT is its Fish ID+ function, which identifies the species of fish inside the beam. If you want to catch a specific fish, this can save you hours of time casting in the wrong location. Lastly, it’s completely waterproof and comes with a powerful battery that provides long-lasting use.

  • Uses rechargeable batteries
  • Fish ID+ and audible alarm
  • Reads water temperature
  • Lacks an integrated GPS system
  • There are very few upgrades available
  • Quality control issues


The Fishing Buddy can provide you with valuable information on fishing, no matter if you are on a kayak, small boat, or even a low pier, making your fishing trip more successful and fun filled. Besides finding the fish location you are targeting, you can also find the contours and structures on the bottom that might attract them. C-clamp style mounts attach securely to most gunwales and transoms, and a 3.5-inch color display provides adequate detail. Wide range sonar provides down imaging of 320 feet, and you can use the device’s temperature reader to get an idea of the water temperature so you can determine what kind of lures to use.

  • Water temperature reader
  • The side view option allows detection of fish in any direction
  • Wide range sonar
  • C-Clamp mount is not preferable for some applications, especially irregular surfaces
  • Short transducer tube length limits the ability use from a dock or pier
  • There is no GPS feature with the unit.


The IBobber Bluetooth Smart is the smallest and lightest fish finder on the market, making it a great choice for any angler looking to buy. Unlike other fish finders, including a transducer, battery, and separate display, the IBobber is a self-reliant unit. The device doesn’t require a display screen since the signal is transmitted directly to your smartphone via a free app. The iBobber is easy to use; you will simply cast it out, use your rod to move it around, and start fishing. The iBobber must be within 100 feet of the smartphone to communicate. An added bonus is the device’s rechargeable battery which lasts for up to ten hours. With this device, you won’t need to worry about your battery draining in the middle of your trip.

Furthermore, it has a GPS feature that marks spots and can record the water temperature and depth. This information is then displayed on your phone. The LED beacon and strike alarm help it serve as an easy-to-see bobber or a visible fish finder for night fishing or ice fishing. The reel-mounted sonar is capable of detecting up to 135 feet under the surface of the water and has a casting distance of 100 feet.

  • Built-in GPS
  • LED beam
  • Long battery life
  • Bad Bluetooth connection from over 50 feet
  • Water splashes cause signal disruption


Before buying any product, it’s very important to go through the buyer’s guide, as it provides brief information and factors to consider before buying, helping you choose the best-desired product to meet your needs while fishing.


Fishfinders need to display every minor detail that their sonar picks up. Due to this, a fish radar with a large color LCD screen is ideal. Some modern fish finders are compatible with your smartphone, which can be an even better choice. It is recommended that you buy a screen with at least 240 vertical pixels and 160 horizontal pixels. Look for screens with a high-definition resolution if you want an excellent display. With these, you will get the clearest images, data, and numbers, which will be easier to read with less glare, strain, or difficulties.


Any portable device’s weight is always a factor to consider when buying it. A few fit in your palm, while others require a special carrying case. To make it easy to carry, you should opt for a lightweight fish finder. Portable fish finders are often much lighter than standard or kayak fish finders, which is why they are ideal for taking anywhere and everywhere you plan to go fishing.


You always need to pay attention to using the transducer and how well it works. Your transducer is perhaps the most vital part of your fish finder, as it detects fish in the water by sending and receiving signals. This is the part you’re going to either mount on the boat, throw in the water, or float on top.


Transducers detect details on your fish finder by picking up the sonar waves sent underwater. More details will be picked up if your frequency is higher. It does not mean, however, that high-frequency models are always better. This will depend on the water body you prefer to fish in. It’s desirable to use a device with higher frequencies if you are working in shallow water, and It should be around 192 to 200 kHz. The best choice for deep water fishing would be a device with lower frequencies. A frequency of about 50 kHz would be appropriate.


The more watts and power your fish finder has, the faster it displays readings. A higher wattage will also allow you to use the device at a greater depth while maintaining accuracy. When it comes to shallow freshwater, power is less important. However, if you plan on going deeper, you should always have as many watts as possible on your device.


Q: What are fish finders?

A: Fish finders are devices that detect things beneath the surface through using sonar technology. They are excellent at finding both small and large fish, and many other objects that happen to share the waters.

Q: How Does a Portable Fish Finder Work?

A: A fish finder uses a transducer (sonar) to generate sound waves in the water and to capture the reflections. It uses this information to calculate whether the object is a fish, a rock, or something else. There are fish finders that use cabled transducers and others that connect directly to the unit via your smartphone.

Q: Is GPS important on a fish finder?

A: While a GPS is not necessary, it is always nice to have. Many of the portable finders come with GPS and chart plotting technology. With these features, you’ll be able to keep track of the best fishing spots while navigating to and from the launch.

Q: Where can we use these portable fish finders?

A: You can use these portable fish finders anywhere you want onshore, beaches, lakes, rivers, streams, and even ice fishing.

Q: Where do fish finders get power?

A: They get power from batteries. Some models come with rechargeable batteries, and some with non-rechargeable.

Q: Do all the fish finders have waterproofing?

A: No, not all finders have waterproofing; some are only water-resistant, so various preventative measures are advised between models.

Q: Can these portable fish finders be used for ice fishing?

A: Yes, they can work for ice fishing, the same way as they do under normal conditions. However, extra care should be taken as some transducers can’t optimally work under intense or adverse conditions.


Portable fish finders are excellent technology, pocket-friendly, and time-saving devices, which not only help you to improve your fishing skills but lets you enjoy the experience. You should hopefully have a strong grip on choosing the right model according to your preferences by the end of this article, but if you still feel confused or are stuck juggling about what to buy, we will recommend you choose GARMIN STRIKER 4, with the most advanced features of GPS, mapping, CHIRP SONAR and with a wide range of depth and acquiring frequencies of 50/77/200 kHz and transmitting power of 200 W.

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