Buddy has a gift certificate to Gander. He is a newb and has a pontoon boat.
Salesman recomends a Humminbird 698ci HD SI Chartplotter Fishfinder Combo on sale for $400 - a $50 rebate I think.
I am reccomending a Humminbird Helix 5 DI Fishfinder for $250.- $50 rebate
Since boat is in one lake and no map available I dont think he needs GPS or maps.
Since new to electronics and small screen I dont think he needs or will interpret Si very well
Will the Di unit get better Di than the 698 with Di from Si?
Thanks