Xiaomi Robot Vacuum Cleaner S40C White EU BHR9664EU

Effortless cleaning

Xiaomi Robot Vacuum S40C is a device designed for vacuuming and mopping floors at home. It combines LDS laser mapping , high 5000 Pa suction power and large dust and water tanks, making everyday tidying less time-consuming. The vacuum cleaner offers selectable operating modes, remote control via an app and voice control, so it adapts to different needs and room types.

Key benefits

• Precise mapping - fast 360° scanning and map memory minimise repeated cleaning.


• High 5000 Pa suction power - makes it easier to remove large debris and hair.


• Large tanks - 520 ml for dust and 260 ml for water reduce the frequency of emptying and refilling.


• Three water flow levels - adjust mopping moisture for different surfaces.


• Multiple sensors - lower risk of getting stuck and reliable obstacle avoidance.


• Remote and voice control - operation via the Xiaomi Home app and compatibility with Alexa and Google Assistant.

Intelligent laser navigation

The LDS laser system scans rooms in a 360° range, creating detailed maps and planning cleaning routes to reduce missed spots. Thanks to the stored map, the robot returns to the docking station more quickly and avoids repeating the same areas, contributing to more efficient cleaning of the whole home.

Suction power and operating modes

The device offers four operating modes: quiet mode , standard , high performance and Turbo . The maximum suction force of 5000 Pa helps quickly collect large particles and pet hair. Different modes allow you to match performance to current needs — from discreet night-time cleaning to thorough removal of dust and dirt.

Precise mopping

The mopping system with intelligent water flow control offers three levels ( Level 1 , Level 2 , Level 3 ), allowing the working moisture to be adjusted for wood , tiles or mixed surfaces. Even water distribution reduces over-wetting and helps effectively remove stains.

Capacity and obstacle handling

A 520 ml dust container and 260 ml water tank mean less frequent emptying and refilling, which makes cleaning larger areas easier. Thanks to numerous sensors, the robot recognises its surroundings and easily crosses thresholds up to 20 mm , helping it move smoothly between rooms.

Control and integrations

Remote control via the Xiaomi Home app allows you to start cleaning, schedule tasks, monitor progress and select zones. Voice control works with Amazon Alexa and Google Assistant , allowing convenient hands-free starting or stopping. OTA functions are also available for software updates.

Specification