Query on portable fish finder

Hi All,

I am looking for a basic portable fish finder for an open boat. Really only needed for depth and contour profiles.

I have come across this one on Amazon.

https://www.amazon.de/dp/B06Y1XW8CR/ref ... NrPXRydWU=

If your wary of the link then search on Amazon.de for 'LUCKY Fish Finder Colour Screen Boat Fish Finder with Dual Frequency'

Has anyone got one and if so are they any good?
Any other suggestions would be much appreciated.

Thanks in advance.

Caz

I think I'd be buying a Garmin.
https://buy.garmin.com/en-IE/GB/p/543740

Thanks Jim. A bit more expensive but like the GPS combination.

Caz