Fish Finder Reviews
Lowrance Mark-4 fishfinder review

Lowrance Mark-4 FishFinder Review

About Lowrance

The Lowrance Company’s SONAR products graphically display underwater information (bottom contours and structure, schools of baitfish, individual game fish, thermoclines, etc.) and are used primarily by sport fishermen as fishfinders, and by recreational boaters as navigational and safety devices.

lowrance fish finders

Its GPS+WAAS mapping products are utilized by boaters for navigation, as well as by hunters, backpackers, RV enthusiasts, pilots and others to locate their positions precisely (to within 10 feet at select WAAS coverage areas of the U.S.) and to record up to 1,000 waypoints (favorite spots) in a unit’s memory and return to those locations at any time in the future.

The U.S. Department of Defense’s elimination of Selective Availability (SA) within its constellation of satellites during 2000 instantly increased the worldwide accuracy levels of Lowrance GPS products by 10-times. In combination with the more recently installed Federal Aviation Administration’s Wide Area Augmentation System (WAAS), positional accuracy, particularly in the southern hemisphere of the U.S., has been enhanced even more…

Lowrance Mark 4 Review

Finding fish with a fish finder becomes very easy. Fish finders come in different prices and different features. There are some that are extremely advance while there are others that are just considered OK. Today, we will have a closer look at the features, pros, and cons of Lowrance Mark 4.

lowrance mark 4
lowrance mark 4
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It is a fish finder that has a 4-inch greyscale LCD display. The grey scale display makes it easy for the users to even view the screen in daylight. It has a dual-beam sonar with 300-watt power. Since the sonar is the dual beam, therefore, this particular fishfinder is much better than all those single beam fishfinders. If you compare its price and features with other fishfinders like Lowrance Elite 5 HDI or Lowrance elite 3x, you will realize that Lowrance Mark 4 is way better than several others in the market.

Features of Lowrance Mark 4

Here are some of the major features of Mark 4.

  • Dual beam sonar
  • 200KHz transducer
  • 4 inches wide screen
  • LED greyscale display
  • GPS antenna
  • One year warranty of parts

Lowrance Mark 4 Pros & Cons


  • It is a very reasonably priced fishfinder that you will find in the market.
  • It has a dual beam sonar which makes it easy for you to find fish right under the boat.
  • It has a fairly large screen that’s around 4 inches.
  • It comes with its own GPS antenna.
  • The 200KHz transducer is what exactly you need.


  • Small display.
  • Grayscale screen
lowrance mark 4
lowrance mark 4
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If you have read other fish finder reviews, I am sure you’d know that Mark 4 is far better than many other fish finders in the same price range…

Read more about Lowrance Mark 4 HDI