Yesterday was the first day I had my Apple Watch Sport. I had it set up to activate on wrist raise. I must admit I used it on a run and had BT headphones paired to the watch along with a Podcast that was also native to the watch I also used the walk activity while I played disc golf. So I'm sure that took more power than normal but I was down to about 6% by midnight. That's fine since that's when I would take it off anyway but I also noticed how many times the face activated throughout the day when I really wasn't needing it. I ended up selecting activate on tap which seems like it might cut down on battery usage. Since this is only the second day I was wondering what everyone is doing? And is there any advantage/disadvantage to either method?