Battery life: match the runtime to the shift
Battery is the first filter for any wearable camera. A body worn camera for security work must survive a full shift — look for 8 to 12 hours of continuous 1080p recording, or longer with motion-triggered capture. A civilian wearable camera used in short bursts can run smaller batteries. Always check whether the wearable camera records while charging, which matters for back-to-back shifts.