Xiaomi S40 Pro Robot Vacuum & Mop 2-in-1 Review UK 2026
Quick verdict
Score: 8.4/10
Best for: Homes wanting hands-off floor cleaning on hard floors and carpet, with mopping
Not for: Homes with lots of floor clutter, cables or deep high-pile carpet, where a robot struggles
Bottom line: A robot vacuum (15,000 Pa, vacuum + mop), a capable hands-off cleaner with LiDAR laser navigation for everyday floor upkeep.
The Xiaomi BHR089QGB S40 Pro is a solid 2-in-1 choice for routine vacuuming and mopping with minimal daily effort. It is designed with dual extendable arms and dynamic side brushes for improved corner reach, and it includes anti-tangle hair-handling brushes aimed at managing pet fur and long hair. Performance on mixed surfaces depends on its carpet detection and mop lifting.
Key specifications
| Feature | Spec |
|---|---|
| Navigation | LiDAR laser |
| Suction | 15,000 Pa |
| Dustbin / Water tank | 430 ml / 310 ml |
| Runtime / Weight | 120 min / 4.7 kg |
Pros
- 15,000 Pa suction
- Up to 120 minutes run-time
- Vacuum and mop in one (310ml tank)
- LiDAR laser navigation for systematic cleaning
- 430ml dustbin
Cons
- No self-empty dock - the onboard bin needs emptying often
- Struggles with floor clutter, cables and deep high-pile carpet
- Sensors and brushes need regular cleaning to keep performing
Suction Power and Cleaning Performance
Suction-performance focus matters because it determines how well this robot vacuum lifts dust, dirt, and hair from floors and cracks, and it is rated at up to 15,000 Pa. The key claim is that the strong motor targets debris in floor gaps, using its side brushes and dual extendable arms to reach edges. It also uses smart carpet detection, raising the mop 10 mm and boosting suction when carpet is sensed, helping avoid wetting.
Navigation and Mapping
For a robot like the Xiaomi, strong pickup helps, but how it gets around the home shapes the results, particularly for keeping cleaning consistent across rooms and along edges. Navigation relies on lidar laser navigation, so it can plan routes rather than moving randomly. As it travels, the robot uses corner-focused side brushing with dynamic edge sweeping close to walls down to 1 mm. Layouts that are blocked or heavily cluttered can limit line coverage, requiring user setup via the Mi Home app.
Battery Life and Run Time
With a listed runtime of 120 minutes, the robot vacuum Pro is designed to complete a fairly large pass before needing a recharge, and it targets homes up to 180 m² per charge. For the Xiaomi, that means longer sessions between returns to the dock, which can reduce interruptions during daily cleaning. The battery is paired with a 5,200 mAh capacity, supporting sustained operation across open floor areas. However, real run time can shorten on mixed surfaces or when the robot frequently changes modes.
Mop Function
Mopping is handled through the robot vacuum and mop 2-in-1 design, using the same navigation and cleaning cycle as vacuuming. For the robot vacuum, mopping relies on its 310 ml water tank and LiDAR laser navigation, so routes remain consistent. When the robot detects carpets using its ultrasonic sensors, it lifts the mop by about 10 mm to help prevent wetting them. This supports smoother transitions between floor types, but heavy spills may still require manual attention, as no specific mopping intensity is stated.
Self-Empty and Maintenance
Even though the Xiaomi BHR089QGB S40 Pro is built for automated cleaning cycles to reduce routine work, the verified manufacturer information supplied does not describe self-emptying or ongoing maintenance features. As a result, an automatic emptying bin, a filter-cleaning schedule, or any self-wash capability cannot be confirmed. Manual upkeep therefore remains necessary. The unit includes a 430 ml dustbin and a 310 ml water tank, so emptying and refilling may be required during longer cleaning sessions. Regular checks should include inspecting the brushes for hair tangles, cleaning edge areas, and ensuring the mop is free of residue.
App Control and Smart Features
App control is a key part of the Xiaomi Pro experience. The manufacturer states it is compatible with the Mi Home App and supports Google Assistant and Alexa voice commands. Through the Mi Home App, users can schedule cleanings, change modes, and start or stop the robot from anywhere, which suits busy households. Voice control can simplify day-to-day use, although performance depends on stable Wi-Fi and smooth app syncing. The robot vacuum listing presents the same controls as a main convenience feature, and it also pairs well with Lidar navigation.
Noise Level
Noise level matters when the robot vacuum and mop runs in the evening or when people are at home. For the Xiaomi robot vacuum and mop 2-in-1, the manufacturer does not specify loudness figures such as dB levels or sound modes. In everyday use, it should be expected to produce some background noise, as it uses suction and a mopping mechanism while moving. The noise may be more noticeable on hard floors, while rugs can change the sound. Scheduling cleaning for quieter periods can help minimise disturbance.
Pet Hair Performance
Regularly, the robot vacuum Pro is designed to handle pet hair as part of its core cleaning performance, using a 15,000 Pa suction system and brushes meant for debris in typical home conditions. In UK homes, this robot vacuum uk uses Y-shaped comb main and side brushes with an anti-tangle structure, so long hair and pet fur are less likely to wrap. It also reaches edges using dual extendable arms, which helps around furniture legs. Very thick clumps can still require manual pickup, particularly in deep carpet pile where hair can catch.
Cleaning and Maintenance
Cleaning and maintenance for the Xiaomi Pro are mostly hands-off, but routine tasks help keep day-to-day performance stable. Owners should plan for periodic emptying of the 430ml dustbin and refilling the 310ml water tank. Regularly checking the Y-shaped, anti-tangle brush system helps when hair and debris build up on the main and side brushes. After mopping, wiping the mop area helps prevent residue. Lidar navigation reduces missed runs, but blocked wheels and sensors still need quick cleaning.
Who Is This Robot Vacuum For?
The Xiaomi BHR089QGB S40 Pro Pro (BHR089QGB) suits people who want automated vacuuming and mopping without constant hands-on control. It is a good fit for mixed flooring, using LIDAR laser navigation and smart carpet detection that lifts the mop 10 mm. Homeowners with pets or long hair may find the anti-tangle, Y-shaped comb brushes useful, since they reduce the need for manual clean-ups. Those cleaning larger spaces, up to 180 m² per charge with 120 minutes of runtime, can also benefit from the 430 ml dustbin and 310 ml water tank, helping to reduce interruptions.
Where to Buy in the UK
Where can shoppers in the UK get the robot vacuum Pro (BHR089QGB), and what should they check before ordering? It is typically available through major UK retailers and trusted online tech shops, so buyers should compare product listings for the exact model code BHR089QGB. Before purchase, check that the listing includes the stated features, including lidar navigation, 15,000 Pa suction, and a mop that lifts 10 mm on carpet detection. If looking for the Xiaomi Robot Vacuum and Mop 2-in-1 deal in the UK, confirm compatibility with the Mi Home App and voice control, and review the delivery details.
Frequently Asked Questions
Is this robot vacuum worth it?
A robot vacuum like the Xiaomi earns its place for day-to-day floor upkeep, freeing you from routine vacuuming and damp-mopping hard floors. It handles upkeep rather than deep cleans - check the current Amazon UK price, as it changes often.
Can the robot vacuum mop as well as vacuum?
Yes - the Xiaomi vacuums and damp-mops hard floors in one run with a 310ml water tank. Mopping suits sealed hard floors, not carpet, and is best for light daily marks rather than stuck-on stains.
What are the downsides of the Xiaomi BHR089QGB S40 Pro?
Robot vacuums struggle with floor clutter, loose cables and deep high-pile carpet, and the brushes, filter and sensors need regular cleaning. The onboard bin also needs emptying every few runs. They are for routine upkeep, not a replacement for an occasional deep clean.
Is this robot vacuum good for pet hair?
With 15,000 Pa of suction, the Xiaomi handles pet hair on hard floors and low-pile carpet well; long-haired pets may still need a periodic brush clean to clear tangles.
How does the robot vacuum navigate?
The Xiaomi uses LiDAR laser navigation to map rooms and plan an efficient path, rather than bouncing around at random.
How long does the robot vacuum run on a charge?
It runs for up to 120 minutes per charge, then resumes after recharging on longer cleans. Real run-time depends on suction level and floor type.
Does this robot vacuum work on both carpet and hard floors?
Yes - it moves between hard floors and low-to-medium carpet automatically, though mopping is for hard floors only. Deep or high-pile carpet is the main limitation for any robot vacuum.