Don't forget the 797 c2 SI which is smaller version of the SI unit plus only about 1/2 the price. There is no way I would want the side imaging with out the GPS.

One thing several people do not know about the side imaging is that as you are searching and see something on the side imaging you can actually mark the spot (brushpile, stump field, etc.) and not have to go over the top of it and disturb fish (if any there).

If did not include the GPS with the side imaging you would not be able to mark the exact spot unless you wnet over the top of it.

Barry F