my fenix6 pro has fast drain battery, i have read about that and understand that is a big problem for many other people like me! i called garmin and wrote to support center and customer service and told about that, no one respond me any correct or logical respond!!!! they only said " i am sorry to hear that" !!!! i have ni any IQ CONNET on my watch , i dont use puls ox or wifi or music or other think like them, and unfortunately this is a big bug that seems could not sole by garmin. it seems after take money of product , garmin do not like to respond you. this is shameful