Since turning location off this week when not using it and the new firmware update I'm using just over 20% battery per day of I shut it when I go to bed,~11pm and boot it up at 6am the next morning. Using a black watch background, keeping non used radios off and brightness on auto is really starting to pay off. I still turn gps and location on when walking, still use the phone radio when away from my phone but not keeping them on always makes a big difference.