Xiaomi S40 Pro

The Xiaomi Robot Vacuum S40 Pro is a robotic floor cleaner designed for automated vacuuming and mopping in domestic environments. It combines high suction power with dual rotating mop pads and advanced navigation to handle everyday dust, pet hair, and stains across hard floors and carpets. Equipped with a fan delivering up to 15,000 Pa of suction, the device is engineered to remove fine dust and embedded debris efficiently. Dual extended mechanical arms and edge-focused brushes enable millimetre-level cleaning along walls and corners, while a dual anti-tangle system on the main and side brushes helps reduce hair wrapping for easier maintenance. An LDS laser navigation system with 360° scanning and structured light obstacle detection supports precise mapping, route planning, and avoidance of common household obstacles. The vacuum integrates a 430 ml dust box and a 310 ml electronically controlled water tank, paired with dual rotating mop pads that simulate manual scrubbing for more thorough mopping. A 5200 mAh battery is specified to clean areas of up to approximately 180 m² on a single charge, with automatic return to the charging dock and resume cleaning functions supported via the Xiaomi Home app. Smart carpet recognition can lift the mop pads and adjust suction to protect rugs and improve cleaning performance on textile surfaces. In typical use, the S40 Pro operates through app-controlled cleaning modes that include vacuuming, mopping, combined vacuum and mop, and vacuum-before-mop sequences. Multi-storey mapping, virtual zoning, and scheduled cleaning allow it to be configured for different rooms and floor types, while compatibility with Amazon Alexa and Google Assistant enables voice-initiated operation as part of a connected home setup. With its combination of strong suction, precise edge cleaning, and intelligent navigation, this robot vacuum is positioned as a practical solution for regular floor maintenance in medium to large homes. Its integrated dust and water tanks, long battery life, and anti-tangle brush design are intended to reduce manual intervention and support consistent, repeatable cleaning performance over time.