Xiaomi Robot Vacuum S40 EU
No lab has tested it yet, so it is not in our ranking.
Is the Xiaomi Robot Vacuum S40 EU right for your home? Find out in 7 questions →
Before you buy, compare it with 2 recommended alternatives
Beside it, two models on sale today that come closest to it on score and price, with the same kind of station where we have them.
Green is the best of these 3, also when they share the lead.
| This model Xiaomi Robot Vacuum S40 EU Best on 2 facts | Higher score, 33% cheaper Roborock Q7 L5 Best on 2 facts | Higher score, 3% dearer Tikom G8000 Max Best on 2 facts | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | 165 €Amazon.de | 111 €Amazon.de best | 169 €Amazon.de |
| Score | not in our ranking | best | |
| Rank | – | rank 2 of 3 without a station | rank 1 of 3 without a station |
| Customer rating | ★ 4.7 · 469 reviews best | ★ 4.1 · 2,337 reviews | ★ 4.4 · 4,567 reviews |
| Mopping | |||
| Mop type same on all | flat or vibrating pad | flat or vibrating pad | flat or vibrating pad |
| Washes the mop | – | no | – |
| Hot-air drying | – | no | – |
| Station | |||
| Station same on all | charging dock only | charging dock only | charging dock only |
| Plumbing hookup | – | no | – |
| Brush and obstacles | |||
| Anti-tangle brush | yes | yes | – |
| Obstacle avoidance | – | – | none |
| Climbs thresholds up to higher is better | 20 mm best | 20 mm best | 18 mm |
| Size, noise and age | |||
| Robot height lower is better | 9.8 cm | 9.9 cm | 7.6 cm best |
| On the market since | May 2025 | January 2025 | March 2025 |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
Prices per shop
On 3 October 2026 the lowest price for the Xiaomi Robot Vacuum S40 EU is 165 € at Amazon.de, delivery to Germany included.
All prices include VAT and delivery to Germany. We may earn a commission when you buy through these links. It never changes our ranking.
| Shop | Colour | Price | Delivery time and returns | Reviews | Checked | Link to the shop |
|---|---|---|---|---|---|---|
 Amazon.de whitelowest price sold by a third-party seller Reviews on Trustpilot ↗ | white | 165 €lowest price since 22 Sept: 165 € | about 1–2 dayslowest pricereturns through the seller | ★ 4.7 (469) | 17 hours ago | Visit shop ↗ |
Price history
Xiaomi Robot Vacuum S40 EU specifications
The numbers that matter first, then every fact by group. As published by the maker or the shop we read it from.
Xiaomi · on the market since May 2025
Dimensionsrobot and dock
From the published dimensions. The robot passes under furniture with 10 cm of clearance or more.
Suction and brushes 2 facts
- Suction power
Suction in pascal, as the maker measures it. More pascal helps on carpet, but it says little about how well the robot picks grit off a hard floor.
- 10,000 Pa
- Anti-tangle brush
A brush that guides hair to the side instead of letting it wind around the shaft. It saves the cutting work in homes with long hair or pets.
- yes
Mopping 2 facts
- Mop type
How the mop is built: flat pads, two spinning discs or a roller. Discs press harder on dried-on dirt, a roller rinses itself while it works.
- flat or vibrating pad
- Water tank in the robot
How much clean water the robot carries. It sets how long it mops before a refill, which a dock does by itself.
- 270 ml
Navigation and obstacles 3 facts
- Navigation
How the robot maps your home and follows that map. Lidar measures with a laser and works in the dark, a camera looks along and recognises more.
- LiDAR turret
- Climbs thresholds up to
The highest threshold the robot takes, as the maker states it. Measure your own: the step into a bathroom or onto a balcony is often higher.
- 20 mm
- No-go zones
How you keep the robot out of a place: a zone you draw in the app, a virtual wall or a magnetic strip on the floor.
- zones in the app, virtual walls
Robot 3 facts
- Robot height
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
- 9.8 cm
- Robot diameter
How wide the robot is. Narrower gets between chair legs more easily, wider usually means a bigger dust bin.
- 34 cm
- Dust bin in the robot
How much dust the robot holds before you empty it. It matters less with an auto-empty dock, which empties the bin after every run.
- 520 ml
Battery 2 facts
- Battery capacity
The capacity of the battery. It hints at the runtime, but how much the robot draws counts just as much.
- 5,200 mAh
- Runtime per charge
How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped.
- 180 min
Smart features and warranty 1 fact
- Voice assistants
Which voice assistants the robot works with, such as Google Assistant or Alexa.
- Alexa, Google Assistant
Sources: mi.com