When sourcing automatic cleaners, prioritize suction power (measured in Pa), with a minimum of 3000Pa for effective debris removal. Ensure the unit features LiDAR or dToF navigation for precise mapping and obstacle avoidance. For wet-dry models, verify the water tank capacity and the presence of an auto-empty station or self-cleaning mop module to reduce manual maintenance. Additionally, check for battery capacity (mAh), aiming for at least 5200mAh to cover areas over 150 square meters on a single charge.