I turned off Ambient Display (was using Smart activation) and the battery life drastically increased. I'm guessing it's because of the sensors (to detect movement, picking up the phone, and pocket) that's draining the battery. Hoping any moderators will take notice, and report this to Sony; in which they'll improve this. I'd love to turn on ambient display, but I get a lower SoT. (3-4 hours) compared to it being off (5-6).