I've searched but can't seem to locate a thread from a couple of years ago that I think was regarding a portable fish finder to use on a dock. Since I won't be moving, most sonar beams wouldn't help much unless the fish swam right through the narrow beam. I've been looking at a FishHunter Pro from Lowrance. Is there any others that anyone can recommend? I'd prefer one that uses WiFi signal to be used with a smartphone or hard wired to a viewer (I don't want to use Bluetooth because I connect my phone to my speaker via bluetooth for some tunes while I'm fishing).

Thank you in advance.