What GPS/chart plotter do you use.

[Johnny Hirn]

Hi everyone,
I am adding more to the kayak arsenal and decided that its about time that i get a gps or chart plotter (not sure if there is a difference). I already have a fish finder so ideally i wouldn't want to buy a FF with chartplotting, but preferably would want a waterproof one that i could have fishing spots programmed into and search up new coordinates that i think may be potential spots. Does anyone have any advice on what to choose? It seems like most of the ones i find online are meant for hiking.
Tight lines,
Johnny