Highest Rated Fishfinders
1Humminbird Helix 5 CHIRP G2
2Lowrance HDS 7 Gen3
3Garmin Striker 7sv
4Garmin echoMAP CHIRP 73sv
5Raymarine Dragonfly 7 PRO

Lowrance Mark 4 HDI Review

Lowrance Mark 4 HDI has an average rating of 3.33 out of 5 based on 3 user reviews.



The Lowrance Mark 4 HDI comes with a 4.3 inch greyscale screen. HDI stands for Hybrid Dual Imaging and provides both the Broadband Sounder and DownScan. HDI was first introduced by the Elite7 model and it provides extremely accurate fish markings and is capable of tracking bait movement. There is also Downscan Overlay that allows users to combine Downscan Imaging view with the Broadband Sounder. The resulting display separates fish targets from the surrounding structure and vegetation. It allows for full adjustability of the overlay.

Lowrance’s Advanced Signal Processing (ASP) maximizes fishing time by reducing the need to manually adjust settings to see fish, structure and bottom detail more clearly. Exclusive TrackBack functionality allows anglers to scroll back in recorded sonar history to review structure, transitions and fish targets, and pinpoint locations with a waypoint (on chartplotter models) — eliminating the need to circle back and retrace their path.

Another plus to the Lowrance product is chartplotter capability. They include with this an accurate built-in GPS antenna and a detailed U.S. map. There are more than 3,000 lakes and rivers, and coastal regions that reach to a depth of 1,000 ft. The Mark 4 HDI is compatible with Lowrance’s online map creation service – Insight Genesis. This allows anglers to create custom, high-resolution bottom and vegetation maps from recordings you make on your own excursions.

Even though Mark 4 HDI is very affordable, it has most of the bells and whistles of the more expensive units. It is best for inland fishing reaching a depth of 1,000 feet. You can find the 50/200 kHz Skimmer transducer as an optional upgrade. That transducer reaches depths of 2,500 feet. The maximum depth for DownScan is 300 feet.

The Mark-4 HDI does come with a one-year limited warranty and their exclusive Lowrance Advantage Service program. This model ranges in price from $149 to $329. Lowrance Mark-4 HDI may be ideal for the beginning angler, or the advanced fisherman who simply wants a bit of an edge over their own instinct. You can get a great deal on Lowrance Mark 4 HDI here.

 Lowrance Mark-4 HDIHumminbird 581i DI
Screen Size4.3 in5 in
Screen Resolution480 x 272 pixels640 x 320 pixels
Display TypeMonochrome TFT with 11-Level LED backlight16-level grayscale
Imaging2D, Down Imaging, Downscan Overlay2D and Down Imaging
Transmit PowerMax 250W RMS, 30,000W Peak to Peak (analog equivalent)300W RMS
2400W Peak-To-Peak
Sonar Frequency83/200 kHz 2D
455/800 kHz Down Imaging

also 50/200 KHz dual frequency transducers
200 kHz 2D Sonar
455/800 kHz Down Imaging
Maximum Depth300 ft Down Imaging
750 ft 2D @ 77 kHz
2000 ft 2D @ 50 kHz
250 ft (DI), 600 ft (2D Sonar)
Waypoints Storage30002500
TrailsUp to 100 trails - up to 10,000 points / trailUp to 50 trails w/20,000 points each
Map CompatibilityLake Insight and Nautic Insight PRO and HD, Navionics Gold and HotMaps Premium, Fishing Hotspots PRO and Jeppesen C-Map Max-N.Fishing Hot Spots, NauticPath & Navionics
(Hotmpas, Premium and Gold)
Background MapUS map with over 3,000 enhanced lake maps with depth contour and shoreline detail, plus coastal depth contours/shoreline detail and spot depth soundings to 1,000 ft./305 mHumminbird UniMap

User Reviews

Posted by Mr. Walleye

  • 5/5

This unit exceeded my expectations. I was replacing an old Cuda model and Mark 4 HDI is much better unit. First of all it is a chartplotter. I didn’t even have to buy additional maps, the preloaded ones for fine for me. The screen is larger than my old Cuda and it’s much clearer too. This unit also has down imaging which is great when searching for structure.

Posted by Ray Bersch

  • 4/5

I’m using mine on a 14foot Hobie kayak with a 12volt/7amp battery. I can’t use split screen mode on longer trips because it drains battery much quicker. So far I’ve only been using it for depth and bottom structure, haven’t tried targeting fish in sonar mode yet. So far I like this unit.

Posted by Charlie

  • 1/5

Be very careful which of the mark 4 HDI you purchase. Not sure why Lowrance would sell a down image unit, an give you a transducer that does not have the ability to do down image. The 83/200 will not give you down. You will need the quad band for down. Why would a company even mismatch a unit like this. Yes it was my fault ,I did not spend hours studying all the aspects of this unit. I would rather be fishing, then studying to make sure I am not getting jerked around. I have sent back the Lowrance Mark 4 HDI 83/200 for a refund. Less return shipping and the time lost installing it on my boat. My next combo will not be Lowrance. After all if you add the HDI quad to this black and white unit you can buy a larger color unit for the same price with a different name on the faceplate.

Submit Your Review


Current day month ye@r *