i bought a boat last year that had 2 old fish finders on it. i bought a lowrance x87 and put on the front and left the wide one hundred on the console. no comparison between them. the wide one hundred won't pick the thermocline and lowrance will. i've looked at garmins too trying to decide what to replace the wide one with. to me anyway i dont think there is much difference between them. i do like lowrance/eagle's since that is what i'm use to so thats what i'll wind up buying but to me there isn't a difference.