Roborock unveiled the Saros Rover at CES 2026—a robot vacuum that climbs stairs using motorized wheel-legs and cleans each step during ascent. The device scaled five large steps in 30–40 seconds during live demonstrations, addressing a gap no competitor has solved in production models.

Why it matters: Multi-level homes with pets and children gain a solution to persistent robot vacuum limitations. Competing systems transport vacuums between floors but don't clean stairs.

How it works: Two wheel-legs extend from the base and wedge the body upward in a motion reminiscent of a long-legged bird. The Rover balanced across carpet and hard surfaces, adjusted position mid-climb, and reversed direction on steep ramps. AI navigation combines motion sensors with 3D mapping to enable real-time spatial decisions. Video tests showed the device dodging tennis balls thrown at speed, simulating fast-moving obstacles like pets and children.

The competition: Eufy's MarsWalker and Dreame's CyberX climb stairs but don't clean during transit. Both remain prototypes with no confirmed U.S. availability.

What's missing: Roborock disclosed no battery drain data, noise levels, or smart home integration details. Privacy implications of continuous spatial mapping weren't addressed.

The bottom line: Expect pricing above $2,500 based on the $2,599 Saros Z70 launch. Roborock confirmed market release but withheld dates. Households with multiple floors see clear benefits if real-world performance matches controlled demonstrations. Apartment dwellers gain no advantage.