Doug one advantage to the new units is the GPS and as you can see from my picture above, I take the bracket off and put it on a boat and now the head unit is on the boat and the transducer that comes with the unit is on the boat the hole time as I got the ice transducer too. I got lost on the lake in a snow storm one time on the ice and the GPS was very handy to get back to where we were parked.