I always think ppl who report bad battery life leave on Bluetooth and GPS all day. Both will kill batteries fast but high accuracy GPS is a real killer
I leave Bluetooth and GPS on all day. My GPS is set for high accuracy. My battery life has been fine. I routinely use 3-4 hours of screen time a day (mostly on the train to/from work) and never have less than 50% left at the end of the day.