Review on Portable WiFi Fish Finder with GPS for Kayaks, Boats, and Ice Fishing - Deeper PRO+ Smart Sonar for Deeper Insights by Nguyen Tuan Bao ᠌

I tried it on winter fishing, it’s also not bad, but at a shallow depth and a thick layer of ice it doesn’t help, but at a depth of 2 meters it’s already normal, with high sensitivity you can see how the mormyshka is released and with a certain skill you can understand how the fish treats the mormyshka, nozzle or your game. In the winter version, small fish are displayed as a strip above the bottom (large fish are not caught here). But when a strip appears on the screen, wait for a bite. Really works.