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Deal.ai › Xiaomi › Robot Vacuum Cleaners
Xiaomi
Xiaomi Robot Vacuum S40

Xiaomi Robot Vacuum S40

5(1 rating)

Best price now

$182.48at Tiny LuxChecked Nov 10

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Price facts

  • Last seen at $182.48 at Tiny Lux on Nov 10.

Our take on the Xiaomi Robot Vacuum S40

The Xiaomi Robot Vacuum S40 is a mid-range robot that vacuums and mops, maps rooms with laser navigation, and works with Google Assistant and Alexa. It has 55 W of suction, a 5,200 mAh battery and a low 3.9-inch body that fits under most furniture. It suits people who want app control and mopping without paying flagship money, but it lacks the self-emptying base and rotating mop pads of pricier rivals. Owners like the mapping and the quiet operation; the small dust bin and basic mop are the common complaints.

Best forApartment and small-home ownersMixed hard floors and low-pile carpetShoppers who want app and voice control
Pros
  • Laser room mapping with app-set no-go zones
  • Vacuums and mops in one pass
  • Works with Google Assistant and Alexa
  • Low 3.9-inch body reaches under sofas and beds
  • 5,200 mAh battery covers a full floor on one charge
Cons
  • Small 0.14-gallon dust bin needs frequent emptying
  • Mop is a drag pad, not a scrubbing or rotating system
  • No self-emptying base
  • 65 dB is audible in open-plan rooms
  • Long 3-hour charge time

Xiaomi Robot Vacuum S40 prices at every store

  • Tiny LuxNew

    In stock

    $182.48Checked Nov 10
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Store links may earn us a commission. Price via Klarna.

Xiaomi Robot Vacuum S40 price history

Lowest price we've seen: $182.48 on Nov 10 at Tiny Lux. Tracked across 1 store since Nov 10.

What reviewers say

Owners rate the S40 as a solid value robot: mapping is reliable, setup is quick, and it cleans hard floors well. Complaints center on the small dust bin, the basic mop and the noise on maximum suction.

What people mention
  • MappingPraisedOwners say the laser map is accurate and room splits and no-go zones work as set in the app.
  • Dust binCriticisedThe small bin fills quickly on carpet, so owners empty it after most runs.
  • MoppingMixedThe drag-pad mop handles light dust on hard floors but leaves streaks and does not scrub.
  • NoiseMixedStandard mode is quiet enough for the room; max suction is clearly audible.
  • BatteryMixedOne charge covers a normal floor, but a full recharge takes about three hours.

Specifications

Noise Level (dB)
65Source
Color
Black, White, GraySource
App Control
YesSource
Dust Bin Capacity (gal)
0.14Source
Smart Home System

Questions and answers

Does the Xiaomi S40 vacuum and mop at the same time?
It can, but the mop is a drag pad rather than a scrubbing system. Most owners vacuum first, then run a mop pass on hard floors.
Does it work with Alexa and Google Assistant?
Yes. You can start, stop and send it home by voice, and the Mi Home app adds schedules, maps and no-go zones.
Will it fit under my sofa?
It is 3.9 inches tall, so it clears most sofas, beds and cabinets with standard clearance. Measure low gaps before buying.
How often do I need to empty the dust bin?
The bin holds 0.14 gallons, so expect to empty it after most full-home runs, more often on carpet. There is no self-emptying base.
Is it good for pet hair?
Yes on hard floors and low-pile carpet. The main brush handles hair well, but you should still cut tangled hair off the brush regularly.
Does it come with a charging dock?
Yes, a charging dock is included and the robot returns to it automatically when the battery runs low or a cleaning job ends.
Where is the Xiaomi Robot Vacuum S40 cheapest?
At Tiny Lux, for $182.48, as of our latest check.
What do buyers say about the Xiaomi Robot Vacuum S40?
Rated 5 out of 5 from 1 ratings.

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Google Assistant, Amazon AlexaSource
Water Tank Capacity (gal)
0.07Source
Charging Time (min)
180Source
Width (")
13.4Source
Voice Assistant
Google Assistant, Amazon AlexaSource
Suction Power (W) (W)
55Source
Automatic Charging
YesSource
Height (")
3.9Source
Features
Room Mapping, Remote Control, MoppingSource
Motor Power (W)
70Source
Battery Capacity (mAh)
5200Source
Weight (lb)
9.1Source