Apart from the most recent top of the line models, lidar sensors are mounted at the top of the device and cannot detect short items (slippers, cables). They are

Apart from the most recent top of the line models, lidar sensors are mounted at the top of the device and cannot detect short items (slippers, cables). They are not much more capable with obsticalr avoidance than the front bumper system on roombas. The few robot vacuums that have only a front lidar sensors perform poorly compared to the camera only or lidar augmented camera in the latest Roomba and Roborocks.