I was super excited about my watch, but I have to say i am disappointed in the battery life! I am lucky if I get 6 hours before it completely dies!! I started researching about the battery and found out that it was a software bug and Samsung will be coming out with a upgrade to fix it. I downloaded the upgrade yesterday AND I AM NOT SEEING MUCH OF A DIFFERENCE IN THE BATTERY PERFORMANCE AT ALL!!! At 7 am my watch was at 100% charged. Right now as I write this review, it is 1030am and I am at 43%. Mind you I get 0 reception at work so my watch is not being used!! Since I only bought the watch about 1 week ago, it is really looking like I will be returning this watch and maybe wait for massive battery life improvements before I decide to take a risk on it again, as of right now its looking like galaxy 5 pro is gonna be on my wrist soon.