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The Humminbird 587ci HD DI is a combination GPS and fishfinder that includes Humminbird’s trademark Switchfire and Dual Beam Plus sonar technologies as well as their Down-Imaging system all displayed on a high definition 256 color 4.5 inch 640×480 resolution screen that has brightness levels that can be adjusted to read clearly even under direct sunlight.

Switchfire brings to the user two modes of sonar viewing. The first is a maximum mode that brings incredible detail of the world below to the screen. Not only the expected cover and bottom, but also water current as well as thermoclines. The second is a clear mode which is for those times when the water is shallow, murky, or filed with sediment. These are times when getting every detail simply fills the screen. Clear mode filters out the unnecessary noise and gives you a clear picture under these challenging situations. Switchfire technology gives the user a detail option under conditions that make other sonars useless.

Dual Beam technology sends a 20 degree 200 kHz and a 60 degree 83kHz sonar beam under the boat. The wider beam covers an area that is as wide as the depth of the first beam. These beams can be viewed side by side or in a combination mode thus giving the user a picture of the bottom as well as the surrounding area allowing the sonar to pick up all fish in the immediate area.

Down imaging is added to the feature packed Humminbird 587ci HD DI. Down Imaging is a sonar system that focuses thin slices of sonar waves below the boat in order to produce a detailed image of not only the surface but all cover, structures, and details of the area below.

In addition to these features the Humminbird 587ci HD DI also has an internal GPS system that can track 3,000 waypoints, 50 routes, and 50 channels and includes chart plotting, built in Uni-Map cartography, and an SD card slot for saving additional maps like Navionics and LakeMaster as well as additional waypoints and routes.

The unit is mounted on the included tilt and swivel quick disconnect mount has 2400 W peak to peak power and drop in replacement capability. This is an all in one unit that is affordable, versatile, and a solid budget minded choice.

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The Humminbird 581i DI is a Fishfinder and GPS in one affordable unit that includes Dual Beam Real Time sonar, Humminbirds incredible Down Imaging technology and full 50 channel track and chart plotting GPS. The ultra bright and easy to read high resolution 16 level gray scale black and white 640×320 5 inch screen makes all images easily readable even in bright sunlight.

The Down Imaging technology gives a picture of the features below the boat in more detail than most have ever seen or expected from sonar. This is accomplished using multiple thin range images that are layered into a single image on the screen.

The GPS system incorporates standard chart plotting and route memory as well as track plotting which records, for example a specific successful trolling path that you can follow repeatedly in order to achieve the same results. The overall GPS system is also useful for saving waypoints as well as the path to that waypoint.

The Humminbird 581i DI is a great buy for an affordable feature packed Fishfinder/GPS combination unit. With 2000 watts peak to peak power, 2,500 waypoints, 50 routes, and 50 tracks with 20,000 points each the unit has more than enough memory for most users. The 50 channel GPS with Navionics Compatible cartography also includes GPS speed as well as the Humminbird UniMap. All of this is mounted on an quick connect/disconnect mounting system making the Humminbird 581i DI a solid budget minded consumer best buy.

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The Humminbird 570 is a powerful yet affordable sonar and fishfinder that uses Humminbird’s unique Dual Beam technology and delivers incredible and detailed images on the standard ultra bright 640 x 320 5 inch 12 level gray scale black and white screen. This screen is fully adjustable and works well in all levels of sunlight.

The Dual Beam sonar technology simultaneously casts a 20 degree signal directly below in order to map the bottom and a 60 degree wider angle signal that spreads as wide as the original beam goes deep in order to map the fish and structures found between the bottom and the surface. The focused 20 degree signal gives great detail in its limited coverage area while the wider 60 degree beam gives a greater picture of the surroundings. These images can be seen at once on a split screen or layered on each other to provide a single complete view of what is below.

These images are then interpreted by the Humminbird 570’s Fish ID+ software to identify what elements on the screen are fish and even has the ability to estimate the size of each fish. This information is presented on the screen as fish icons with a number noting the relative size.

Included is a quick connect and disconnect mounting system and the controls on the unit are simple to use and easy to learn. This is a unit that delivers all of the information needed with one hand four button operation.

This 2000 watt peak to peak sonar system is ideal for any user that needs a well priced sonar and fishfinding solution. The no compromise technology is designed for ease of use and built for maximum results. The Humminbird 570 also includes water temperature information as well as available speed display all of which are accessed with through the Humminbird’s X-Press menu system making this unit ideal for those that a quick learning curve and maximum results.

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The 385ci DI makes is a powerful combination GPS/Fishfinding solution featuring Huminbird’s Dual Beam technology, Down Imaging system and a Precision GPS system that includes waypoints, trackplotting, chartplotting, GPS speed, incorporates the included Humminbird UniMap and allows for optional Navionics, Gold/HotMaps, and LakeMaster SD Card expansions.

The power in this unit is unmatched and the compact size makes it usable on all size watercraft, especially smaller fishing boats that do not have the space for traditional larger bulkier units. The Dual Beam system uses two beams, one to map the bottom below the boat in detail and the second beam to map the surrounding area around that beam. Both images can be separated on a split screen or layered together to display a full underwater picture.

These images are then modified with the Humminbird SwitchFire system which allows the user to switch between high definition imaging which is useful in clear water conditions and a clearer level of definition which filters out the “noise” found in the high definition image under murky or shallow water conditions. These features are all included in this no compromise unit.

In addition to this the Humminbird 385ci DI also includes Down Imaging technology that sends small thin range sonar signals that combine to produce a very detailed image of the bottom showing all structures, cover, and other irregularities.

The Precision GPS on this unit is a powerful tool and with the standard included memory the system can track 2,500 waypoints, 50 routes, and 50 tracks with 20,000 waypoints each. This is more than enough for the standard user, but for those that want more the memory is expandable with an SD card using the included SD Card slot.

With 4,000 watts of peak to peak power, a quick mount connect and disconnect mechanism, and its compact size this unit is capable of meeting the needs of the most demanding sportsman. The Humminbird 385ci DI is packed with features and yet incorporates Humminbird’s user friendly and easy to learn and use X-Press Menu System making the Humminbird 385ci DI the perfect choice for the enthusiast that wants results without complexity.

The Lowrance Mark 4 is a value minded no compromise fishfinder and chartplotter that features a high bright 3.5 inch backlit LED screen that is designed and proven as easy to read even under direct sunlight. This display features a unique trackback system where you can enhance any area of screen by 400% in order to examine the detailed sonar history and identify specific underwater fish and structures with ease. The sonar technology uses a dual 83/200 Khz frequency system with 2100 watts of peak to peak power and a maximum depth of 1,000 feet.

You are able to store 100 waypoints, 100 routes, and even 100 plot trails ensuring that you will never again lose track of your favorite spots. In addition to the stored waypoints, routes, and plot trails it is expandable using the standard SD card slot. This gives the you access to the various compatible SD card enhancements such as additional memory for more waypoints, routes, and plot trails as well as published hotspots with Navionics® Gold, Fishing Hotspots® Pro and Premium charting.

Included with the unit is a simple plug and play low profile tilt and swivel mount for adjustable viewing and the mount can be easily moved and re-mounted to a trolling motor. The controls on the unit are simple and intuitive and are designed for one hand which makes for easy operation even while moving.

Beyond fishfinding and chartplotting the Lowrance Mark 4 also includes a full GPS system which is ideal for those waterways that more twist and turns than one can remember and for those out in the ocean when suddenly the shoreline goes beyond your view or when on the ocean, a river, or lake and thick fog unexpectedly rolls in bringing visibility to near zero within minutes. In these instances the GPS and the backlit display will prove invaluable as the Lowrance Mark 4 safely navigates you home.

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Some fishfinders opt for flash and glitz; others for basic functionality. The Humminbird 561 throws its lot in with the reliable and effective, making it a top choice for a monochromatic fishfinder. Its display showcases detailed, thorough results on its 12 level grayscale 320V X 320H 5” screen, so you reap the benefits of Humminbird DualBeam Plus technology. For the 561 model, this means 20° (which gives highly accurate results) and 60° beams (which give broad, expansive results). It also means never having to choose between accuracy and distance, since the beams’ results can be seen one at a time, but also on side by side screens or fully integrated. The beams reach a deep (and useful) 800 feet. Because of the TrueArch Technology, much interference and noise is weeded out, providing superior sonar visuals.

For your ease of use, the Humminbird 561 comes with an in-dash mount, and features Quick Disconnect capabilities, so you can move with the speed of your fish hunt. In keeping with that theme, the fishfinder’s X-Press Menu System allows you to control your screen at lightnight speed; the most commonly employed settings are available at the press of a button, so you don’t need to spend your minutes fiddling with the controls and can stay focused on your fish.

There are a variety of other features which make the 561 model shine. For instance, it has an optional Triplog feature, in case you want to connect a speed accessory or Paddlewheel. This lets you keep tabs of how fast, how far, and how long you’ve been traveling. It also has a super fast Real Time Sonar Window (in Sonar View) that updates at the speed of life; the window can be displayed in a variety of ways, including standard and wide.

Garmin Echo 100 vs Garmin Echo 150 vs Humminbird 561

	Garmin Echo 100	Garmin Echo 150	Humminbird 561
Screen Size	4 in / 102 mm	4 in / 102 mm	5 in / 127 mm
Screen Resolution	160 x 256 pixels	160 x 256 pixels	320 x 320 pixels
Display Type	8-level grayscale FSTN	8-level grayscale FSTN	12-level grayscale FSTN LCD
Imaging	2D	2D	2D
Transmit Power	100W RMS 800W Peak-To-Peak	200W RMS 1600W Peak-To-Peak	300W RMS 2400W Peak-To-Peak
Sonar Frequency	200 kHz	77/200 kHz	83/200 kHz
Maximum Depth	600 ft	1300 ft	800 ft
MSRP	$79.99	$99.99	$149.99
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The Lowrance HDS10 Gen2 is the largest available HDS model on the market. It is a total of 10.4 inches measured diagonally and provides the best viewing experience possible with this family of products. The screen can be sectioned off into various windows, the most being 4 quarters of the screen displaying 4 different types of data such as sonar scanning, fish tracking, plotting and even a compass or map. The Broadband Sounder can help locate individual fish, the thermoline, fish stacks and echo viewing.

Other properties of the screen include high brightness levels, brightness adjustment and a sunlight viewable display. The LED lighting solution for the back light helps to reduce power consumption. The higher resolution also provides gorgeous display of 3rd party maps with the optional SD data. It provides the clearest and most up to date information in the HDS family because it is designed to be faster hardware.

The HDS10 is compatible with the Insight HD and Fishing Hot Spots Pro, Navionics Gold-Platinum+ and other third party plotters to get the most out of plotting routes. There are also different options which can be used in terms of transducer for specific location usage. These packages are designed to be used for inland and fresh water locations, deep lakes and coastal saltwater use. Greater specialization can be added for deep salt water GPS plotting and fish tracking.

If the user wants to be in a certain region, they will need to choose between the Americas or Non-Americas for their mapping options. The option they choose will only work within these regions and are not supported cross regionally. Although this can be somewhat off putting for some consumers it is to ensure super accurate internal GPS functionality that will be best suited for that region. The Lowrance HDS10 Gen2 can be customized for greater accuracy based on these different options.

Lowrance HDS-10 vs Humminbird 1198ci SI vs Humminbird 1158c DI

	Lowrance HDS-10	Humminbird 1198ci SI	Humminbird 1158c DI
Screen Size	10.4 in / 264 mm	10.4 in / 264 mm	10.4 in / 264 mm
Screen Resolution	600 x 800 pixels	480 x 800 pixels	480 x 800 pixels
Display Type	16-bit color Super VGA SolarMAX™ PLUS TFT	4:3 Color TFT	4:3 Color TFT
Imaging	2D	2D and Side Imaging	2D and Down Imaging
Transducer Type	Transom Mount/Trolling Motor	Transom Mount/Trolling Motor	Transom Mount/Trolling Motor
Transmit Power	Max 250W Broadband, analog equivalent 30,000W and 32W Broadband, analog equivalent 3,750 W equivalent 3750W	1000W RMS 8000W Peak-to-Peak	500W RMS 4000W Peak-To-Peak
Sonar Frequency	50/83/200 kHz	83/200 kHz 2D 455/800 kHz Side Imaging	200/455 kHz 2D 455/800 kHz Down Imaging
Maximum Depth	5000 ft / 1524 m	1500 ft 2D 150 ft Side Imaging	600 ft 2D 250 ft Down Imaging
GPS Antenna Type	Internal, high-sensitivity GPS+WAAS	Internal	Internal
Waypoint Storage	5000	3000	3000
Routes	200	50	50
Plot Trails	Up to 10 trails - up to 12,000 points/trail	50 w/20,000 points each	50 w/20,000 points each
Background Map	Expanded U.S. BaseMap or Insight USA	Humminbird ContourXD	Humminbird Contour XD
MSRP	$2429.99	$2799.99	$2199.99
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The Lowrance Elite-4 DSI Combo is a little device packed with a lot of functionality. It comes with a dual 455/800 kHz coverage: 455 kHz for when you want broad, general scanning and 800 kHz to help you focus in on specific areas and fish. One major bonus of the Lowrance Elite-4 DSI Combo is that it features the special DownScan Imaging, which is as close as you can come to seeing the sea beneath your boat without strapping on some goggles, an oxygen tank and taking a dive. The results derived from the DownScan Imaging are so clear they appear nearly photographic, so that you can quickly and easily identify everything it picks up. You can see both hard and soft bottoms, beds of seaweed, eager fish and more. Even thermoclines are clear, so you can see the difference in the water temperatures. Additionally, it may be said that this device is one that keeps up; even going some 40 mph, clear results can be obtained. The transducer can scan as deep as 200 feet underwater.

The Lowrance Elite-4 Chartplotter/Fishfinder Combo is truly a marriage of convenience, uniting the Elite-4’s 300 RMS Sounder (which penetrates some 800 feet into the water) with its more than capable Skimmer transducer (complete with dual frequency and as many as 120 degrees of accurate coverage). But this compact, versatile device has many more features than that to recommend itself to any smart fisherman. Take the TrackBack feature, for example, which allows you to store up to four pages of crisp sonar results – including literally thousands of waypoints, one hundred routes and a significant number of plot trails. This allows you to plan your voyage with accuracy and ease, without losing track of where you have been and what you might have seen on the way. You can also use it to pause and do a closer inspection of your sonar results.

The Elite-4 Chartplotter/Fishfinder Combo is pre-programmed with a basemap; however, it also contains an SD slot so if you need something more thorough or specific, you need only load it onto the SD card for easy installation. Of course, this slot is water proof, so you don’t risk damaging anything. The device is compatible with a variety of popular chart programs, including Navonics Gold and Premium, and Fishing Hotspot Pro. The hardware is likewise impressive. The Elite-4 Combo also has a bright backlit, controls which are easy to use (even single-handedly) and a GPS antenna which provides accurate location results. The accompanying tilt and swivel bracket makes it fast to click into place and faster still to release. Sonar results are displayed on a sharp, ultra sharp 4 inch screen, perfect for any kind of eyes. As a bonus, it also comes at a reasonably affordable price, compared to others in its class.

Garmin Echo 300c vs Lowrance Elite-4x DSI vs Humminbird 345c DI

	Garmin Echo 300c	Lowrance Elite-4x DSI	Humminbird 345c DI
Screen Size	3.5 in / 89 mm	3.5 in / 89 mm	3.5 in / 89 mm
Screen Resolution	320 x 240 pixels	320 x 240 pixels	320 x 240 pixels
Display Type	QVGA, 256 colors	256 colors	256 colors
Imaging	2D	Down Imaging	2D and Down Imaging
Transducer Type	Transom Mount/Trolling Motor	Transom Mount/Trolling Motor	Transom Mount/Trolling Motor
Transmit Power	300W RMS 2400W Peak-To-Peak	350W RMS 2800W Peak-To-Peak	500W RMS 4000W Peak-To-Peak
Sonar Frequency	200/77 kHz	455/800 kHz	200/455 kHz 2D 455/800 kHz Down Imaging
Maximum Depth	1500 ft	200 ft	600 ft 2D 250 ft Down Imaging
MSRP	$219	$199	$379
	Review	Review	Review

It is time to pack your winter coat, because the Lowrance Elite-5 IceMachine is improving the way you fish on ice. Specially created to provide not only reliable performance and easy portability but also perfect angles for ice fishing, the Elite-5 IceMachine has a brilliant, vibrant 5 inch display with special SolarMAX 256 color, so you can view each graph, chart and number with perfect clarity no matter what the weather is like or how cold it gets (the Elite-5 IceMachine can withstand temperatures as low as negative 20 degrees Fahrenheit). The machine has a backlit and a keyboard designed specifically to provide ease of use, even if you’re holding the machine with only one hand and a single thumb – a crucial capability when you’re fishing on ice and don’t have a free second hand.

Power is key when you’re ice fishing (it’s hard to know what’s under all those layers of ice), but that’s what this IceMachine delivers with its 200 kHz ice transducer and sonar cone; it is capable of reaching 1,000 feet deep. It also has a compatible Ice Transducer Float for easy control. Though it may be hard to navigate certain snowy, icy locations, you have an ally in the Elit-5, due to its 16 channel GPS-WAAS antenna and 3000 pre-loaded, intricate lake maps. And just in case you’re in a location not pre-loaded, the water-proof SD card slot allows you to add in more locations.

Traveling with your Elite-5 is easy because it comes with an Ice Fishing Pack: a special weather proof bag, battery charger, tackle trays and more. It contains an adjustable mount as well, so you can customize its placement according to your needs. All of these features combine to make the Lowrance Elite-5 IceMachine an ice fishing power house fishfinder and chart plotter.

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While Garmin Echo 150 qualifies as one of the budget models, appealing to the cost-sensible fisherman, it has numerous features and qualities which make it feel like a top of the line system. For starters, there are its excellent dual beam capabilities. Making the most of its 200 watt sonar power, the beams go down 1,300 feet in fresh water, relaying back superb detail. And, there is a viewing angle of up to 120 degrees, so you can see far and wide. The Echo 150 also boasts Garmin HD-ID technology, which provides more detail and definition on your compact but bright 4 inch screen.

Useful in all weather conditions, the Echo 150 is waterproof and can be wiped off with a simple cloth. Other amenities of this model include Ultrascroll technology (so you can travel the speed you want to without sacrificing results), AutoGain technology to improve visual clarity, a water temperature sensor to help you track all the right fish, and 1,600 watt transmit power, peak to peak.

The best way to experience the benefits of this model are to just set it up and try it out for yourself; luckily, the mount and go capabilities made that a piece of cake to accomplish. As is standard with many fishfinders, it has a quick release mount; and, can be easily set up on any boat, tiny to large, due to its relatively small size. And of course, you do not have to reach too deeply into your pockets to make the purchase possible, as the Echo 150 is (somewhat surprisingly) an economy model fishfinder.

Garmin Echo 100 vs Garmin Echo 150 vs Humminbird 561

	Garmin Echo 100	Garmin Echo 150	Humminbird 561
Screen Size	4 in / 102 mm	4 in / 102 mm	5 in / 127 mm
Screen Resolution	160 x 256 pixels	160 x 256 pixels	320 x 320 pixels
Display Type	8-level grayscale FSTN	8-level grayscale FSTN	12-level grayscale FSTN LCD
Imaging	2D	2D	2D
Transmit Power	100W RMS 800W Peak-To-Peak	200W RMS 1600W Peak-To-Peak	300W RMS 2400W Peak-To-Peak
Sonar Frequency	200 kHz	77/200 kHz	83/200 kHz
Maximum Depth	600 ft	1300 ft	800 ft
MSRP	$79.99	$99.99	$149.99
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Humminbird 345c DI features a comfortably large 3.5 inch display, with 256 Color, so you can easily identify everything that it’s 16° and 25° beams pick up (for depths of up to 600 ft). The screen can be altered to your preference as it sports both customizable display and background colors. The results are displayed in real time, due to the Instant Image Update feature. And, utilizing its special SwitchFire technology, you can switch between the ultra detailed Max Mode and the simplified Clear Mode, depending on weather conditions.

Although some may be disappointed that this model doesn’t also include a chartplotter, consolation can be found in the Humminbird 345c DI fishfinder’s advanced features, which include sonar recording, Wide/Narrow Cone Split Screen (which lets you view the results from both the beams at the same time) and a freeze frame functionality, so you can do a deeper, careful inspection of the underwater surroundings.

Because your time is valuable, the Select Fish ID feature allows you to weed out the small fish and focus on just the ones that are worth your effort. You can further narrow down your search via the temperature alarm, which sounds when you reach a specified temperature (important when your fish of choice resides in a certain temperature band). And, you will not need to spend the minutes squinting away at your screen, because of the Large Digits View, which displays critical information in a large, easy to see format.

Garmin Echo 300c vs Lowrance Elite-4x DSI vs Humminbird 345c DI

	Garmin Echo 300c	Lowrance Elite-4x DSI	Humminbird 345c DI
Screen Size	3.5 in / 89 mm	3.5 in / 89 mm	3.5 in / 89 mm
Screen Resolution	320 x 240 pixels	320 x 240 pixels	320 x 240 pixels
Display Type	QVGA, 256 colors	256 colors	256 colors
Imaging	2D	Down Imaging	2D and Down Imaging
Transducer Type	Transom Mount/Trolling Motor	Transom Mount/Trolling Motor	Transom Mount/Trolling Motor
Transmit Power	300W RMS 2400W Peak-To-Peak	350W RMS 2800W Peak-To-Peak	500W RMS 4000W Peak-To-Peak
Sonar Frequency	200/77 kHz	455/800 kHz	200/455 kHz 2D 455/800 kHz Down Imaging
Maximum Depth	1500 ft	200 ft	600 ft 2D 250 ft Down Imaging
MSRP	$219	$199	$379
	Review	Review	Review