I am going to purchase a Garmin unit for LiveScope already have the transducer a LS32 and am wanting a 10" screen. So in searching for the display I have looked a couple and I am wondering what the difference is between a couple of units they are a Garmin ECHOMAP Ultra 102sv w/o Transducer [010-02111-00] and a Garmin ECHOMAP Ultra 106sv w/o Transducer [010-02112-00]. The price is less for the 102sv by a $100. Anyone who can clue me in on these 2 units would help greatly......