Photos: World’s first two-legged robot vacuum can climb stairs to clean split-level homes

Roborock has unveiled the Saros Rover at CES 2026, the world’s first two-legged robot vacuum designed to climb stairs and clean split-level homes. Unlike traditional low-profile robot vacuums, the Saros Rover features a unique wheeled-leg architecture with two independently motorized legs that enable it to stand, balance, and walk. This innovation addresses the common limitation of robot vacuums being restricted to single-floor operation by allowing the device to ascend and descend stairs step-by-step, including complex architectural features like spiral staircases and carpeted edges, without requiring users to set no-go zones. The Saros Rover uses motion detectors to create real-time 3D spatial maps, enabling it to predict terrain changes and adjust its leg extension for stable navigation across different floor heights. It operates in two mobility modes: rolling on wheels for flat surfaces to conserve energy, and switching to leg-based movement when encountering obstacles such as door thresholds or ramps. Demonstrations showed the robot climbing five stairs in