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Lowrance HDS-7 Gen2 Review

Lowrance HDS-7 Gen2 has an average rating of 3 out of 5 based on 6 user reviews.



Fisherman and boaters alike can take advantage of the Lowrance HDS7 Gen2 plotter and fish finder. They will have access to a wide variety of options that can improve accuracy of their routes and ensure that they get to the locations where the fish will be biting stronger and in greater frequency. Choosing hardware such as this will require some thought and factual understanding from the consumer.

The convenience of the Lowrance HDS7 Gen2 is the fact that it is small and can be placed just about anywhere. Regardless of where it is mounted on the boat, the 50/83/200 kHz frequency can provide accurate data at different depths on both custom mapping and other preset or satellite rendered options. It is water proof, sealed and can withstand operating temperatures of 5 degrees Fahrenheit (-10C) to 130 degrees Fahrenheit (55C).

There are numerous types of networking and connector options available with the HDS7 Gen2 from Lowrance. NMEA 2000, NMEA 0183 and Ethernet connectors allow for quick sharing. The SD card slot makes it possible to use 3rd party mapping options and other high resolution data. These options really improve the functionality of the stock Lowrance HDS7 Gen2 but are not entirely necessary to enjoy this fishfinder.

You can get a great deal on Lowrance HDS-7 Gen2 here.

 Lowrance HDS-7Humminbird 798ci SIHumminbird 858c DI
Screen Size6.4 in / 163 mm5 in / 127 mm7 in
Screen Resolution480 x 640 pixels640 x 640 pixels480 x 800 pixels
Display Type16-bit color Full VGA SolarMAX PLUS TFT256 Color TFT16:9 Color TFT
Imaging2D2D and Side Imaging2D and Down Imaging
Transducer TypeTransom Mount/Trolling MotorTransom Mount/Trolling MotorTransom Mount/Trolling Motor
Transmit PowerMax 250W Broadband, analog equivalent 30000W and 32W Broadband, analog equivalent 3750W500W RMS
4000W Peak-to-Peak
500W RMS
4000W Peak-To-Peak
Sonar Frequency50/83/200 kHz83/200 kHz 2D
455 kHz Side Imaging
200/455 kHz 2D
455/800 kHz Down Imaging
Maximum Depth5000 ft / 1524 m1500 ft 2D
100 ft Side Imaging
600 ft 2D
250 ft Down Imaging
GPS Antenna TypeInternal, high-sensitivity GPS+WAASInternalInternal
Waypoint Storage500025003000
Plot TrailsUp to 10 trails - up to 12,000 points/trail50 w/20,000 points each50 w/20,000 points each
Background MapExpanded U.S. BaseMap or Insight USAHumminbird ContourXDHumminbird Contour XD

User Reviews

Posted by Glenn S.

  • 5/5

I’ve used many fishfinders and this model is by far the most accurate and user friendly. The screen is readable even in bright sun. You don’t need the manual, all screens make sense. The response is fast, the new processor does make a difference. I especially like the carousel feature that lets easily switch between screens.

Posted by Carlos M

  • 4/5

I have an 18ft boat and this unit comes with the 20ft cable. It turned out that the cable was too short (with all the ups/downs and sideways). Other than that I don’t have any regrets, it’s awesome fishfinder, well worth the money.

Posted by Andrew B

  • 1/5

I feel cheated by Lowrance. They made no mention of the fact that the unit is completely useless if you leave the US. I purchased this unit for my sailing vessel which I sail both in the Americas and Europe. Once out outside of the US the unit has zero functionality.
To make matters worse the customer service was horrible. No response to my emails and no solution offered once I finally got in touch with them.
You should avoid this company at all costs. I recommend replacing any Lowrance units you have before you run into any problems. Never trust this company they will rip you off.

Posted by mbrewer

  • 2/5

I purchased this unit thinking I would give Lowrance a try and was disappointed. I have owned six boats in twenty years and always went with Garmin or Ray Marine for my previous vessels. This unit comes with all the features I wanted but it is overly complicated to operate. The nested menus and poor layout make it all but impossible to use when I am on the sea in high wind. It is a pain having to look up how to change simple settings in the manual every time. Another thing that I don’t like is the sub-par preloaded maps. Once you factor in having to purchase the additional map packs the one advantage this unit had, price, disappears. In the future I will stick to Garmin or Ray Marine.

Posted by Dave Saunders

  • 5/5

I have used Lowrance products for years. They are easy to use and set up. If you see fish on this fish finder, drop the jig and reap the rewards. Excellent product

Posted by joe

  • 1/5

I have been an avid fisherman my entire adult life. I have always owned a mid to high range Lowrance in my various boats. I have fished with others, in their boats, with other products and found them sub-quality when it comes to fishing. I bought the new HDS 7 and spent an extra $600 for the side scan. I have never been so disappointed in a Lowrance product. The device functioned very well until the first firmware update and it never was the same again. I tried resetting the unit (with Lowrance tech support help) to the original settings but with no success. I would not recommend a Lowrance product now that the company has been sold. They have lost their focus and their edge to maps.

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