A simple sonar and GPS unit for small boats and kayaks. Worth it over the Striker 4 for the larger screen.
Amazon $179.99The Garmin Striker Plus 4 is the better fish finder overall, rated 2.9 to 2.6. The Garmin Striker Plus 4 leads on sonar and GPS and maps. The Humminbird PiranhaMAX 4 wins on value. The Humminbird PiranhaMAX 4 costs $43.05 less ($136.94 vs $179.99).
A bare bones depth finder for a jon boat or rental, for anglers who only need depth and fish arches.
Amazon $136.94Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Garmin Striker Plus 4 for sonar (CHIRP vs basic 2D sonar only) and GPS and maps (GPS waypoints, no maps vs no GPS).
- Choose the Humminbird PiranhaMAX 4 for value ($31.85 per inch of screen ($136.94, 4.3 in) vs $41.86 per inch of screen ($179.99, 4.3 in)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 7 in fish finder; a clear win is highlighted. How we rank explains each one.
| Factor weight | Garmin Striker Plus 4 | Humminbird PiranhaMAX 4 |
|---|---|---|
| Overall rating | 2.9/5 | 2.6/5 |
| Value 30% | 79 $41.86 per inch of screen ($179.99, 4.3 in) | 96 $31.85 per inch of screen ($136.94, 4.3 in) |
| Sonar 25% | 30 CHIRP | 0 basic 2D sonar only |
| GPS and maps 15% | 40 GPS waypoints, no maps | 0 no GPS |
| Screen 10% | 24 272 x 480, 128 pixels per inch | 24 272 x 480, 128 pixels per inch |
| Warranty 20% | 0 1-year warranty | 0 1-year warranty |
Specifications
| Garmin Striker Plus 4 | Humminbird PiranhaMAX 4 | |
|---|---|---|
| Display | ||
| Screen | 4.3 in | 4.3 in |
| Resolution | 272 x 480 | 272 x 480 |
| Pixels per inch | 128 | 128 |
| Touchscreen | No | No |
| Sonar | ||
| CHIRP | Yes | No |
| Down imaging | No | No |
| Side imaging | No | No |
| Live sonar ready | No | No |
| Maximum depth | - | 600 ft |
| Transducer | Dual-beam | XNT 9 28 T |
| Navigation and build | ||
| GPS | Yes | No |
| Maps | None | No GPS |
| Networking | No | - |
| Warranty | 1 year | 1 year |
| Released | 2017 | - |
