gps + ff or only 1 item?

[spazio]

hi
I have an etrex standard (yellow) and is enough as gps and want to add a ff90
I just need the ff to find groups of fishes to catch by angling and places to go spearfishing, so nothing particular
do you think is ok or is it better a gps+ff in only one gear?
it seems it would be more expensive
any suggestions about other brands/models?
tks
emidio

 

[PUDD]

i have a fish finder as 1 unit and a gps chart ploter as 1 unit then i can use both screens full size with out fickering between pages on 1 single unit. but it takes up more room and there are more wires for the 2 units then just one single 1. you will have to look at your options!
Lowrance are the best in my eyes try garmin and Navman are cheap