UWB and camera systems detect pedestrians in different ways, so they fail in different places. UWB measures the radio distance between a truck unit and a tag worn by each person, which works through racking and around corners and does not depend on light, but it cannot detect anyone without a tag. Camera systems use computer vision to recognize people with no wearable, which covers visitors and contractors, but only within the lens's field of view and in adequate light and visibility. Sites with both blind corners and untagged visitors often layer the two.
The full comparison is forklift safety system comparison: cameras vs sensors vs AI, and proximity detection technologies compared adds RFID, radar and LiDAR.
Ask how each option handles the conditions on your site: dense metal racking (radio reflections for UWB, blocked views for cameras), dust, steam or low light (camera degradation), tag compliance and battery management (UWB), and reverse travel (camera placement). Either can trigger slowdown on compatible forklifts if the supplier offers a speed integration. A pilot that logs missed detections and false alarms separately for each technology gives a better answer than any general ranking.