Xiaomi Xiaomi Robot Vacuum S20+

How does the 2-in-1 vacuum and mop function work?

The S20+ uses electronic water control to simultaneously vacuum debris and mop floors in one pass. The water tank releases controlled amounts of water onto the mop pad whilst the vacuum suction removes dust and dirt. You can adjust water flow levels through the app based on your floor type and cleaning needs. The system works best on hard floors like tiles and wood but automatically lifts the mop when carpets are detected.

What is LDS laser navigation and how accurate is it?

LDS (Laser Distance Sensor) navigation uses a rotating laser on top of the robot to scan and map your home in real time. It measures distances to walls, furniture and obstacles with millimetre precision. This creates detailed floor plans that enable efficient zig-zag cleaning patterns rather than random movement. The system can navigate in complete darkness and remembers your home layout for future cleaning sessions.

Can the robot handle different floor types in one cleaning session?

Yes, the S20+ automatically adapts to different surfaces during cleaning. It increases suction from 4000Pa to 6000Pa when carpets are detected for deeper cleaning. The mop automatically lifts when moving onto carpets to prevent damage. The robot works effectively on tiles, wood floors, laminate, low-pile carpets and rugs. Surface transitions are handled smoothly without manual intervention.

How long does the battery last and what happens when it runs low?

The 5200mAh lithium polymer battery provides 120-150m² of cleaning coverage per charge, typically lasting 90-120 minutes depending on suction settings and floor type. When battery drops to 20%, the robot automatically returns to its charging dock. After recharging (approximately 3-4 hours), it resumes cleaning from exactly where it stopped. This ensures complete home cleaning even in larger properties.

What smart features are available through the Xiaomi Home App?

The app provides comprehensive control over cleaning schedules, suction power levels and no-go zones. You can create custom cleaning zones for specific rooms, set different cleaning modes for different areas and monitor real-time cleaning progress. The app stores multiple floor maps, tracks cleaning history and sends notifications when maintenance is needed. Voice control works with Alexa and Google Assistant for hands-free operation.

How effective is the obstacle avoidance system?

The LDS navigation system combined with built-in sensors detects furniture, walls and obstacles with high accuracy. The robot slows down when approaching objects and navigates around them smoothly. It can climb thresholds up to 2cm high and avoids falling down stairs. The system learns your home layout over time, improving navigation efficiency with each cleaning session. However, very small objects like cables may still cause occasional issues.

What maintenance is required for optimal performance?

Empty the dustbin after each use or when the app indicates it's full. Clean the mop pad after mopping sessions and refill the water tank as needed. The main brush should be cleaned weekly to remove tangled hair and debris. Replace the HEPA filter every 2-3 months and the mop pad every 3-6 months depending on usage. The app provides maintenance reminders and tracks component lifespan automatically.

Is the robot suitable for homes with pets?

Yes, the 4000Pa suction power effectively removes pet hair from carpets and hard floors. The main brush is designed to minimise hair tangling, though regular cleaning is still recommended. The HEPA filtration system captures pet dander and allergens. However, the robot should not be used to clean up pet accidents as liquids can damage the internal components. The quiet operation (typically under 65dB) won't disturb most pets during cleaning.