Review on Deeper PRO Smart Sonar - Portable WiFi Fish Finder for Kayaks, Boats, and Ice Fishing on Shore by Boyan Popov ᠌

Deeper Smart Sonar PRO+ is a great model along with a good app. I also recommend purchasing a Power Bank so that you can charge a diper or a smartphone right on the fishing trip. Has some pros: Compact and handy echo sounder. Used for winter fishing. On the screen of the phone you look at the bottom topography, depth, fish. It has become easier to determine whether there is fish in a given place or not. Cons: I did not find any shortcomings, although the original charger could be added to the kit.