I received my watch on April 30th...38 mm Sport Green. I pull it off the charger at 100% charge at 6:30am, strap it on, and off I go to work. On a typical day, with moderate usage, I still have 45%-ish charge left by 5pm when I get home. However, on two separate days - one day last week, and the second time being today - the battery drain has been amazingly bad. Right now, I'm sitting here at 13% at 2:47pm, and I've barely used the watch all day. On the bad day last week, I was at around 25% by 2pm. Every other day, I'd still be in the 60%'s at this time of day. I foresee a Genius appointment in my future, but it's not like I can replicate this in front of them. I'll start logging battery % throughout the day, I guess, and see if this kind of bad day happens again. Anyone else have random bad battery drain days since getting their watch?