TOKYO -- The Roomba reigned as a pioneer in robot vacuums, but the U.S. leader in the sector is facing a major challenge from Chinese rivals with advanced features.
China tech
Chinese robot vacuums leave Roomba in the dust with arms and legs
Robotic arms, legs and lower prices present challenge to embattled U.S. company
Dreame's vacuum robot comes equipped with "legs" to climb steps. (Photo by Mana Kubota)
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