Humminbird Piranhamax 4 Review: Highlighting the Good and the Bad

Humminbird PiranhaMAX 4

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Roland Brooks

Daddy by day, fisherman at night.

Looking for a high-quality fish finder? The Humminbird PiranhaMAX 4 is a superb pick. Considered one of the most affordable fish finders, the PiranhaMAX 4 is perfect for those looking to save a few bucks and get quality readings at the same time.

This fish finder is packed with exciting and advanced features like dual beam sonar, target separation, Fish ID, a depth alarm, an LED backlight, and more. Every feature serves a key goal – to help you elevate your fishing experience.

Read our Humminbird PiranhaMAX 4 reviews to discover more about the models that make this great fish finder.

Table of Contents

Humminbird Piranhamax 4 Review: A 30-second Summary

Humminbird PiranhaMAX 4
Rating:3.6 ★★★★
💵 Pricing:Budget
🖥️ Screen size:4 Inches

The PiranhaMAX 4 is ideal if you want a budget-friendly and portable fish finder. The device is much smaller than Humminbird’s other finders. Its screen is barely 4.3 inches wide but as a result, it’s suitable for kayaks and small boats.

The PiranhaMAX 4 features dual beam sonar and live mapping. In addition, it has a fantastic upgrade to the screen, with a much-improved resolution than in previous Hummingbird models. You get a clear picture with accurate readings, which makes it easier to separate fish from underwater structures and debris.

The PiranhaMAX 4 has 3 models – PiranhaMAX 4 DI, PT, and Standard. They differ in some aspects, but each uses the same technology that enables quick and easy sonar interpretation.

PiranhaMAX 4 Technical Specifications

Reasons to Buy

Reasons to Avoid

How Does the Humminbird PiranhaMAX 4 Perform When Used in Practice?

The performance is slightly different for each model of the Humminbird Piranhamax 4.

for instance, the DI is without a doubt one of the best fish finders and has superior clarity, down imaging, and Fish ID.

The Standard model also has its benefits and provides superior color range and contrast. It also has the WhiteLine function which allows the device to replace the white color with another one. For instance, the device will use red whenever you are getting strong signals.

The PT model is also handy and uses the same technology as the previous models. However, it also has a suction cup transducer and a 7 Ah battery.

Whichever Humminbird PiranhaMAX 4 you choose, you will be all set for a proper fishing trip. You can switch the display from 2D to 3D, make use of the fish alarm, and maximize the newly introduced Fish ID.

Display Screen

Even though the Humminbird PiranhaMAX 4 DI has a smaller screen than other fish finders, it still offers impeccable resolution and detailed images. Compared to other fish finders in its category, it has 70 more pixels to offer – just enough to catch great volumes of fish.

The display also has a LED backlight which allows anglers to get a clear picture even in direct sunlight. However, there is no touchscreen and no split screen option. Instead, you control everything with a keypad.


When talking about interface, one cannot but start with the Fish ID. This feature goes to show how much thought Humminbird has put into the interface design.

There is a zoom-in option, down imaging, three different depths to choose from, and fish alarms. All these can help anglers find their perfect catch. The screen’s high resolution also allows you to enjoy the interface features to the fullest.


Most fish finders have many mapping features. However, the Humminbird PIranhaMAX 4 DI, PT, and Standard are not among them. With these devices, there is no built-in GPS, live mapping, waypoints, or contour drawing. Instead, the only thing you rely on is the transducer and sonar frequencies. Still, you can mend this issue with an external GPS device.


One of Humminbird PiranhaMAX 4’s best features is its imaging sonar – the dual beam sonar. You actually get two beams – one narrow to provide detailed imaging of targets, and a wider one to provide wide coverage of the area.

Because the device has both a narrow beam and a wide beam, anglers get twofold access.
One beam has 200kHz frequency sound with conical beams at 28 degrees, and the second has 455 kHz frequency sound and 16-degree conical angles. Keep in mind that you have the option to use one beam at a time.


Unfortunately, the Humminbird PiranhaMAX 4 does not come with any networking features. After all, it’s a fish finder that is incredibly affordable and costs no more than $130.

Who is Humminbird PiranhaMAX 4 For?

The Humminbird PiranhaMAX 4 DI is especially beneficial for anglers who enjoy a zoom-in when identifying underwater structures and distinguishing individual fish from schools.
All PiranhaMAX 4 models also offer the same usability for anglers with smaller boats.

The small compact size is ideal for anglers who prefer flexibility and freedom. In addition, it’s the go-to device for kayak anglers as well as big-boat fishermen, given its wide beam.

Humminbird PiranhaMAX 4 is a brilliant device for finding fish on a budget. We hope our review gave you a proper insight into some of the most practical and efficient fish finders to make use of!