ALL THESE COMPANIES MAKE GOOD UNITS AND U WILL HAVE TO MAKE UP YOUR OWN MIND,I HAVE A 998 ;LOVE IT AND CAN SEE FISH IN BP,BUT LOWRANCE AND GARMIN WILL DO THE SAME,THE MAIN THING IS BUYING ONE AND USE USE USE IT TILL U CAN UNDERSTAND WHAT IT IS TELLING U,IF U NEVER HAD A DI OR SI THEN IT IS GOING TO TAKE SOME GETTING USE TO,U ARE NOT GOING TO BUY , QUOTE ;THE BEST AND GO OUT THERE AND NEXT BE THE MASTER OF IT