The Hummingbird Fish Finder PiranhaMax 150 Portable basically has all the features of the Piranhamax 150, but with a few improvements. Just like most of the fish finders in the PiranhaMax series, this is a low cost model, with basic features, focused on tracking fish. It's endowed with a 4-inch display, monochrome, featuring a basic pixel resolution of 160 x 128. The sonar … [Read more...] about Hummingbird Fish Finder PiranhaMax 150 Portable Review