Best Fish Finders & Depth Finders in 2020

Humminbird 780036-1 Humminbird 780036-1 UC H7 PR Unit Cover for Helix 7 Fishfinder Models Review:

This is the best solution for anyone trying to find a good cover for your Humminbird. Fits extremely well. But carefully pull it off your Humminbird when you need to use your sonar otherwise you might accidentally pull your Humminbird out of your console when removing it! Fortunately, I didn't disconnect anything when this happened to me. Also, I was able to easily re-insert my Humminbird securely in the console. You can rest assured that this cover will not fly off when you're transporting your boat on a trailer.

Garmin Striker 4 with Transducer, 3.5" GPS Fishfinder with CHIRP Traditional Transducer Review:

This is a great fish finder and gps system that I would highly recommend for boaters who travel. I recently used it for the first time on a 10 mile canoe trip and I couldn't be more happy with its performance. I was able to plot my course on a paper map to get the coordinates of each leg, and then add all the waypoint coordinates into the unit the night before creating a route.

The next day on the water the gps unit kept track of where I was, how long it would take to get to the next waypoint, and how long it would take to get to the final destination. It also told us our speed which is very valuable for trip planning.

I have two boats I use, one is a row boat for fishing where I mounted the transducer on the electric motor propeller, and a canoe where I mounted the transducer in the hull using a foam mounting piece. In both cases the fish finder worked well and I love that I can swap the unit between the two. Note that I use velcro to make the unit swappable between the boats, but permanently mounting it would not be hard at all. The base is very nice and you can adjust it to face any direction.

During our trip we were rained on and the garmin had no problems in the rain. It held up very well.

If you just need a fish finder for local lakes and you're not traveling in your boat and you don't need to use waypoints, this is probably overkill. But if you're looking for a great gps and fish finder in one, this is a fantastic unit and I highly recommend it.

Quick note about my setup, I built a battery box to power my charger but I know there are nice little battery boxes premade available that might be more hardy and compact than the one I built. You will need to explore power options and be able to wire the unit to whatever power source you choose. I like that flexibility.

Garmin Striker Plus 4 with Dual-Beam transducer, 010-01870-00 Review:

Beware if you use this in saltwater. I have owned the unit for about 8 months and had to replace the power cable after 3 months (about 12 or so trips the connection melted). The push connections in the back of the unit are not watertight and WILL corrode. I coated everything with dielectric grease right after i installed the unit, its taken off my kayak, cleaned, and stored in a dry place after each trip, and I still end up having to clean corrosion off the pins periodically.

The transducer fits flush on the Predator PDL. The unit works great at depths to 120 feet and i have no problems finding structure/bait with the unit.

Garmin Striker 4cv with Transducer, 4" GPS Fishfinder with CHIRP Traditional and ClearVu Scanning Sonar Transducer and Built In Quickdraw Contours Mapping Software Review:

The Garmin Striker Plus 4Cv with Cv20-TM transducer comes with everything you need to install on your boat or on your trolling motor.

I chose it among other reasons for its low profile for my baby bass & crappie boat. (Sundolphin Sportsman 8.5.) Since you shouldn't drill holes in plastic boats I chose to hang it onto my trolling motor. Unfortunately the transducer was a bit too long so I shoved it back against the trolling motor fin which means it was canted to one side. I cleverly shimmed it out with some pieces of rubber and it's halfway vertical anyway. No matter... It still works PERFECTLY.

Not terribly impressed with the bottom map making feature at this point. However the GPS is NEAT for adding waypoints at choice locations. It's been on 3 outings so far and all is el perfecto.

I have been doing depth finders since the days of the spinning fish flashers. Clever users could actually interpret stray flashes as fish. Sort of. I must say...just a few years ago the technology you get in this little package would have cost hundreds more. It's truly amazing!

One thing I did run into...and this may be just my brain...but it has a "day" and "night" mode screen. You'd think day mode would be the choice for the daytime...but it ain't. I could not figger out for the life of my humble self the other day why the screen wouldn't light up. Could barely see it. Finally out of panic and frustration I clicked NIGHT mode and poof...nice bright screen. All they say about looking great in the sun is correct.

I find I tend to run in the legacy mode most of the time. I flip over to ClearVu when something really interesting scrolls by. Fish don't show up nearly as well in ClearVu, but you can get a hugely better idea of the shape of structures down below. It's fascinating. Combined, it's almost wicked, and cheatful, how much info you can glean from the screen.

The other day I saw the crappie... pulled my minner over them and bammo! Again and again and again. That's the power of a great depth finder. Well, unless you don't like cleaning fish.

You'll also find a surface water temp monitor and a battery voltage indicator. Use the indicator! 12.70VPlus and you're fully charged. 12.2V and you are 50%. At 12V you best head for the put in...You are sucking air at 25%. The thing also tells time. Ha! And that's handy. The GPS mph monitor is great as well. On a speed run test I got my Sundolphin up to 2.85mph on the way back to the take out!

Like I say, I bought it for my play boat. For real big boy bass boats you could use it up front for your trolling activities. One of the best toys I have! Get one. You'll be thankin' me!

Humminbird 410150-1 PiranhaMAX 4 Fish Finder Review:

Got this in the hopes that it is as tough and reliable as the last hummingbird I had that was from the early 1990s and I left it on the boat in all types of weather, it just quit working this year, and for the simple operating system. So far it has proven itself so I got another for my pontoon boat.

Humminbird HELIX 5 Fish Finder Review:

Great fish finder but the clips that hold the cables down on the transom are plastic and broke the first time he took it out. It was 20.00 for a new plastic one or 30.00 for a metal one (plus postage) . The Protection Plan that I bought extra did not cover it... If you get this you might order metal clips to avoid being out fishing and have your fish finder malfunction due to broken clips.

Deeper PRO+ Smart Sonar - GPS Portable Wireless Wi-Fi Fish Finder for Shore and Ice Fishing Review:

The thing every shore fisherman wished for since he was a little kid trying to imagine what the bottom looked like. BE CAREFUL on casting! Don't huck it a long distance to shallows! For example don't throw it from a long distance away aiming close to the edge of an island or opposite creek bank! Eventhough you know you can put it right where you want to because you have been casting for 40 years. Think about it first! There could be shallow submerged rocks, logs, or rip-rap. Imagine my surprise when I bombed it out 40 yards towards an island, watched it hit the water then bounce off a submerged rock 10 feet into the air. It held together but never worked again after that- no electronic sensor ever could survive that abuse. Take my first day lesson learned and go on to use this mishap free for a long time for the great useful tool that it is."You pays yer money and takes yer chances," as the old saying goes. It's up to you to be careful with where you thorw it. (I went ahead and bought another one). Throw it to deeps...and then pulll it to shallows-- I gave it 4 stars because of that hard lesson eventhough it was my own dumb fault. I will fish with it for a while then post what I think of it's performance, but so far it is meeting my expectations.

OK so I have used it for about a month now and have to say that it has improved my shoreline fishing game quite a bit. First, it helped me break the winter code on my local lake regarding where the fish were and what they were doing. I still have not found the big bass that are in there, but probably becasue they are holding so far out in the deeps where I cannot reach with the Deeper. But I have found that this lake is FULL of active crappie! All summer I had only caught a few small crappie by accident while I was bass fishing and had no idea that they were in there in the numbers the Deeper has revealed. It's like, hey, i'm seeing some kind of active fish on the Deeper that don't look too big and are out in the 10 foot plus depths-- what could they be? So I put together a slide bobber rig with a couple crappie jigs on it set to the depth that the Deeper showed the fish were at and caught over 30 crappie in a few hours on my 17FEB morning session. Also the Deeper showed that smaller largemouth bass would always be around these crappie schools and I caught a half dozen of them on the jigs as part of that count as well. I would just throw the deeper out and let it sit in the area the crappie schools were moving through. When the fish alarm started going off I would throw the jig out to the Deeper and excitedly wait for the bite which always would come within seconds. BTW I have my Deeper tied onto 50lb braid on a 6-6 heavy spinning rig (which I normally use for my big swimbaits) and can make 40 to 50 yard throws with it. Now I have mapped almost everywhere I can throw to, and have a good picture of the depth and structure features of my local lake. Not only did I check out the features that I knew were there by "feel" before, but I also found a couple that I didn't know were there! I have used this knowledge to my advantage, too, and caught some fish in areas that I had not thought of trying before on these new found structures. Next, it is very cool to know where the fish are and where they are not. What a satisfying feeling it is to have the Deeper mark fish, then throw lures out to them, and catch the ones you just painted on your graph! And finally the coup de grace, I caught my personal best crappie, 2lbs 9oz 16 3/4 inches! I did not have the Deeper in the water at the time but had previously used it to find this area that the crappie hang out. So in closing the Deeper has enabled me to enjoy fishing in a season during which I normally would not even throw a line in, has put me on fish, has helped me to understand what is going on in my local lake this winter, and has helped me catch a personal best. I am changing my rating to 5 stars.

LUCKY Handheld Fish Finder Portable Fishing Kayak Fishfinder Fish Depth Finder Fishing Gear with Sonar Transducer and LCD Display Review:

This portable fish finder is amazing. I don't understand why there are so many complains in the review. It shows accurate fish location and water depth. You can switch the measurement by feet. Just press "Enter" button for 3-5 seconds until you can see the "M" changing to "FT".

You can't use it in swimming pool or water bucket, because the transducer doesn't work in a very small space. The sonar technology is based on sound waves. The transducer send a sound wave signal and determines distance by measuring the time between the transmission of the sound wave when the sound wave is reflected off an object. If the water space is very small, the time is too short to measure the data you concerned. I highly recommend you to try it outside in the lake or somewhere has enough space.

I use it on my kayak and it has been great. I like it so much because I can know where is a good fishing place. I caught a lot of fish and I am very pleased with this small item.

However, the handheld is not waterproof. I reflected the issue to the customer service. The customer service is very prompt and helpful. I am going to buy a waterproof bag later and you can buy it in this store as well.

Venterior VT-FF001 Portable Fish Finder, Handheld Fishfinder Fish Depth Finder with Sonar Sensor Transducer and LCD Display Review:

Accurate depth readings. Fish finding capabilities seemed accurate. However, after using it a couple of times it started locking up and it became necessary to continually reboot it. Sent it back.
***Update: Venterior refunded my purchase price AND sent me a free replacement unit. Who does that? Well, VENTERIOR does. Even if you pay a little more it’s worth it to do business with a company that practices old fashioned integrity. Buy with ABSOLUTE CONFIDENCE!

ReelSonar Wireless Bluetooth Smart Fish Finder Review:

Two years ago I did research on all the portable castable fish finders on the market before settling on this one. Price point and features were big for me in deciding on the ibobber. It does what it claims and marks fish, depth, and water temperature accurately. Some of the other nice features are the underwater mapping and fish alarm. I have used it both casting from shore and dragging it behind my kayak. I will turn on the fish alarm as I am paddling and it will alert me of fish I've gone over so I don't have to stare at it constantly. I use a waterproof smart phone pouch around my neck, which in my opinion is a must, to aid in using the device. The ibobber is able to determine two different fish sizes, those under 15 inches and those over 15. The led light is a welcomed feature for night fishing. My friend has the Deeper and while the sonar app looks more like an advanced sonar map I'm not convinced it's actually much better for the price. He continually had problems with the app freezing on his Samsung device. I use an iPhone and have had very minimal crashing on the ibobber platform. His deeper is also considerably heavier than the ibobber. So much so that I would not recommend casting it without heavy braided line. I use a dedicated dock demon pole with heavy braid to cast mine out and leave it there while I fish with my other rods from shore. The Deeper also makes you purchase a separate cover if you want to access it's led light for night fishing which is ridiculous because of how much it already costs. Battery life is the issue with all these devices. Once they're fully charged they do last around 8 hours. But you must charge it the night or hours before you go out. Charge either of these a couple of days in advance of a trip and they go dead before you get there. Overall I'm satisfied with the ibobber. It isn't perfect yet, none of them are. It's a new generation in castable fishing gadgetry and I'm sure improvements will come along. But for me the price point/ features of such a new gadget was what hooked me. Good luck out there.