Although the Hummingbird Fish Finder 570 does not have any chartplotting or GPS capabilities, it’s quite a reliable tool for measuring depth, illustrating the bottom contour and, of course, finding fish. It’s one of the simplest, yet very useful to have on a fishing boat units.
The Hummingbird Fish Finder 570 features a medium size screen, 5-inch wide, 640 x 320 pixel resolution, with monochromatic display. Even if it’s black and white, it does have 12 level grayscale high resolution. In other words, it will provide you with a pretty clear image of the underwater environment and bottom structure, and you will be able to distinguish exactly where to throw your lures or bait.
It’s one of the Hummingbird fish finders equipped with a DualBeam sonar, which means you can adjust its performance from a wider 60° / 83 kHz beam, to narrower but more accurate 20° / 200 kHz beam. Therefore you will always know which fish and where exactly they are located in under your boat. Also, another aspect to mention here is that the sonar of this Humminbird fish finder is quite reliable in waters up to 800 feet deep.
As far as it concerns the wattage of this Humminbird unit, you will benefit from a 2000 Watts (PTP) power output, which is not bad for a simple unit like this.
All in all, even without any GPS and navigational features this Hummingbird fish finder is acute enough to track an angling jig down to 70-80 feet. Also, it’s a great tool to track fish and help you distinguish between fish and any other structure that passes under your boat.