Score from 10

Xiaomi Viomi S9


Wet mopping

Pros and cons

GoodSuction, Battery, Wet mopping, Control
NormalQuiet, Functionality

Viomi S9 specifications

Parent brandXiaomi
CategoryRobot vacuums
Height9.8 centimeters
Battery capacity5200 milliampere hours
Water tank capacity250 mililiters
Suction power2700 pascals
Noise level70 decibels
Dustbin capacity300 mililiters

Weight3.8 kilograms
Width35 centimeters
Height9.8 centimeters

Сleaning area320 square meters
Battery capacity5200 milliampere hours
Working time150 minutes
Charging time

Water tank capacity250 mililiters
Wet moppingYes
Water flow controlYes

Suction power2700 pascals
Rated power50 watts

Mapping sensorsLDS
Wi-Fi Frequency2.4 gigahertz
Path mappingYes
High-precision mapYes
Video cameraNo
Voice controlYes
Mobile phone appYes
Alexa support (Amazon)
Google assistant support
Real-time trackingYes
Zone blockingYes
Areas cleaningYes
Multi-floor mapsYes
Selected room cleaningYes

Noise level70 decibels
Side brushes1 pieces
Dustbin capacity300 mililiters
Barrier-cross height20 milimeters
Warranty12 months
Recharge & resumeYes
Automatically rechargeYes
LCD displayNo
Automatic dirt disposalYes
Filter HEPAYes
Washable filterYes
Remote controlNo
Virtual walls (magnetic or optical)No
Manual movement controlYes
Carpet boostYes
Anti-drop (cliff sensor)Yes
Dirt detectNo
Full bin indicatorNo

Compare Viomi S9


new product

I very like it. Very

1.0 out of 5 stars Don’t buy

I bought this Viomi S9 vacuum roughly a year ago. And now has completely died on me. At first the mopping stopped working after about 8 months of use, now it won’t vacuum. I have troubleshooted it,... Read more

4.0 out of 5 stars Great vacuum, ok mop, good app, won't connect to alexa

The vacuum is amazing! It picks up everything! The mop is what u get. It does leave streaks, but it does have the nice feature of choosing how much water with the washable cloth. The alexa doesn't... Read more

Works great!

Good suction power and intelligent enough to map out the entire

So far so good.

Has been a year and get most of the jobs done without issue. One issue is the water bin hard takes time to air dry. Unless you have two bins so you can swap. Don’t really like it combined with... Read more

Nice robo. Wirks as expected. There are some issues when going up to the carpet, but this is not the hoover

Great Pattern Work

I have other automated vacuums but this one learns the layout of the house

Quite impressed

Well, I will say, for my first robot vacuum, I'm quite impressed! We have a long haired German Sheppard and I was spending my entire life vacuuming, and still feeling defeated. I will give my... Read more

A few snags but working them out

This unit cleans good--if it hadn't we wouldn't have taken the time to work out the bugs. Firstly we couldn't get the app to connect with the vacuum, and we're IT people. Finally took a service call... Read more

Have a German Shepard and she sheds terribly and this helps with daily clean up!

Great product. Works well with my German Shepard shedding daily and it cleans it up with out issues. I use it daily sometimes

Viomi S9 - news and reviews

Viomi Alpha S9 robot vacuum/mop
The Viomi Alpha S9 robovac self-empties its dustbin into the docking/charge station and has a clip-on robomop/sweeper plate. Great value.
Viomi Robot Vacuum S9 with automatic waste disposal is now available in Australia through Panmi
Craving Tech
Viomi Robot Vacuum products are not new. In fact, I’ve reviewed a few of their robot vacuums here at Craving Tech such as the Viomi V3 equipped with LIDAR and SLAM and also Viomi Smart 11. Now, the latest Viomi S9 comes with an automatic waste disposal with disposable bag to keep your hands from […]