My gen I is basically worthless at this time. The day after the FW update the issue started. Pre-FW update, I could go all day and end with about 35% battery left (0700-2300 hours). Now? I put it on at 0700 and it's 100% dead no later than 1500. This is with being VERY careful to conserve battery by: Brightness to med/low All sounds off Only 2 complications on watch face (battery and weather) Uninstalled all 3rd party apps except Skype for Business Minimized all notifications except iMessage and Skype for Business (both of which I used before the update) My use hasn't changed. I peg this to the FW. Anyone else? Any suggestions? Worthless as a watch at this point, as I put it into battery save mode by 1300 (1pm)!!!! I've gone back to my automatic Swiss watch for now. ARRRRRGH!!!!!!!!