Yesterday was my first real world all day use of my 38mm watch- notifications, some emails, timer use, texts, 45 minute workout. After 13 hours it was down to 10%. Today, after an overnight charge, I'm only at 75% after 7 hours of usage. I've experienced similar improvements with new iphones, but usually it takes a few charge cycles to really kick in. Pleasantly surprised, as yesterday's performance was not confidence inspiring. Is this typical of other's experience