Nothing wrong with my v3 just figured why not upgrade?! The v5 gps is way more accurate! Step counter during the round is a new very cool feature! Only used for 3 rounds so far but all is good! Changing the hole is proving to be my only issue! Manually change that is! Got it done but I almost took the watch off and chucked it in the lake! But 5 minutes of …ucking around and was able to change the hole! Changing holes manually on the v3 easy peasy! V5 not so much! Still it’s the best out there! Shot scope rulz!