Lifelogging features often missed by YouTube reviews:
datetime doesn’t get reset when changing battery can record in low resolution (takes less space) easily changeable battery when the camera is mounted can be mounted to see both your face and people can be connected while shooting can connect to a mobile device adjustable image quality / frame rate (to reduce the space it takes) movement detection (to only record when there’s movement) IR recording (for when sleeping)
Other desirable features to pay attention to
good at shooting in the dark