"Even as other hardware brands like Samsung, the smartwatch maker Fitbit and the camera designer GoPro have struggled with physical products because of low-priced copycats and thin profit margins, Dyson has shown an uncanny ability to mint money. Its latest robot cleaner, which is selling briskly, exemplifies that and puts Dyson in rarefied company alongside Apple as one of the few tech companies worldwide to consistently profit from consumer gadgets."