The Hummingbird Fish Finder 570 Portable is quite a basic fish finder, but it's very useful for anglers that can't use their boat for any fishing trip. This Humminbird fish finder doesn't have any fancy GPS features, nor it has Down Imaging and Side Imaging. However, is quite a reliable tool for tracking fish, providing any angler with accurate returns about the bottom, … [Read more...] about Hummingbird Fish Finder 570 Portable Review