The Humminbird PiranhaMAX 4 is a compact dual-beam fishfinder for small boats, kayaks, and anglers who want a simple depth display with the transducer included. Its 4.3-inch color screen uses 200/455kHz sonar, while the XNT 9 28 T transom sensor makes it ready to install. There is no GPS, charting, or waypoint navigation in this model.

The 480 x 272 screen keeps the unit small enough for a compact console or portable fishing setup. The 200kHz beam reaches the listed 600 feet, while 455kHz provides more detail to 320 feet. That difference is useful to understand: the lower frequency favors depth, while the higher frequency gives a tighter view in shallower water. This is a straightforward sonar unit for freshwater fishing, not a networked marine electronics system.

Key Features

- 4.3-inch color TFT display – Fits compact boats while providing a clear depth and fishfinding screen.
- 200/455kHz Dual Beam sonar – Offers wider depth coverage and a more detailed higher-frequency view.
- XNT 9 28 T transom transducer included – Makes the PiranhaMAX 4 ready for installation.
- 600-foot 200kHz and 320-foot 455kHz capability – Shows the practical difference between the two sonar frequencies.
- Compact housing – Takes little helm space on a small fishing boat.

Who Is This For?

This compact dual-beam fishfinder suits kayaks, small aluminum boats, jon boats, and freshwater anglers who need basic depth information. It is not ideal for coastal chart navigation, GPS waypoint use, SideScan, or a connected NMEA 2000 installation.

Compatibility

Confirmed components include the Humminbird XNT 9 28 T transom-mount transducer and 200/455kHz Dual Beam sonar. The supplied information does not identify GPS, NMEA 2000, NMEA 0183, radar, autopilot, WiFi, Bluetooth, or third-party transducer compatibility. No named incompatible system was provided.

Technical Specifications

- Brand: Humminbird
- Model: PiranhaMAX 4, 410150-1
- Display: 4.3-inch color TFT
- Resolution: 480 x 272 pixels
- Sonar: Dual Beam 200/455kHz
- Transducer: XNT 9 28 T transom mount included
- Depth: 600 feet at 200kHz; 320 feet at 455kHz
- GPS: Not supported
- Charts: Not included
- Warranty: 1-year limited warranty

Warranty & Support

Humminbird provides a 1-year limited warranty. The supplied specifications do not state warranty exclusions or service procedures.

The PiranhaMAX 4 is the simple, compact fishfinder in this group, with the display and transducer included. Its trade-off is limited capability: no GPS, mapping, networking, or side-looking sonar. Choose it for basic freshwater depth and fishfinding on a small boat, not for a growing marine electronics system.