Review Viomi S9 Alpha UV Robot Vacuum Cleaner
➔ investio.pro - Review Discounts Deals ⚡Review Viomi S9 Alpha UV: self-cleaning, high-quality cleaning and disinfection of the surface 2021.
Hello to all readers! This article will review the novelty from Viomi, which is a sub-brand of Xiaomi.
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We are talking about the flagship Viomi S9-UV, or as it is also called Viomi Alpha UV. The main innovations that have been introduced into this model, when compared with their predecessors in the line, are a base for self-cleaning, a more powerful engine and an ultraviolet lamp for surface disinfection. As for the latter, it is difficult to assess the effectiveness of the upgrade, but regarding the other features, they certainly increase the cleaning efficiency and the autonomy of the robot vacuum cleaner itself. Next, Viomi S9-UV will be reviewed and tested in detail, after which I will express my own opinion about this robot. Yes, it is worth noting that at the time of preparing the review, its cost ranges from 550 dollars. So let's go!
Equipment
First of all, let's take a look at the package for the Viomi S9 UV. In addition to the robot itself and a base for self-cleaning garbage, the kit includes:
- Wet cleaning nozzle with pre-installed microfiber cloth.
- Set of 10 disposable wet wipes.
- Spare side brush.
- Two spare bags for the base.
- And the instruction manual in several languages, including English.
The package bundle is not really meager, but so that there are no comments, in addition to all this, I would like to have a spare HEPA filter, so that there is a full set of consumables for the first time the robot is in operation.
Appearance
Let's take a look at the Viomi S9 UV. In my case, the robot vacuum cleaner is white with blue accents. It looks very stylish and modern. There is also a black and purple color scheme that looks no less interesting.
A lidar is responsible for navigation, as well as a mechanical bumper, on which as many as two wall sensors are installed on the sides and an obstacle sensor in the center.
Lidar is equipped with a mechanical button that protects against getting stuck under furniture. There are two mechanical buttons on the case: forced return to the base for charging, as well as start / pause.
In addition, we see information that the robot is equipped with a UV lamp.
The combined water and waste container can be removed from the back. The tank holds up to 250 ml of water, and the dust collector is designed for 300 ml of dry waste.
The container has a shutter to prevent accidental debris falling out when removing it from the robot. Filtration system based on mesh, foam and HEPA filters.
At the back we see terminals for docking with the base, as well as a curtain through which self-cleaning of garbage from the container takes place. In addition, we see a pump installed in the tank for electronic regulation of the water supply.
Let's see how the Viomi S9 UV is arranged from below. It is equipped with four fall protection sensors.
In the center we see an installed UV lamp, with the help of which the surface is disinfected.
The central brush is bristly-petal. The pile is not very dense, but rather resilient. On one side, the cap can be removed to clean the brush from coiled hair and wool. Only the boot is removed from the reverse side.
Water enters the napkin through three holes in the nozzle. The napkin is quite dense, but smaller in size than the predecessors Viomi V3 and Viomi SE , reviews of which we have on our website.
And here's what the disposable wipes look like. They are also dense, but the quality is inferior by itself, so they will be effective just for one-time use.
Let's see how the self-cleaning base works.
Well, firstly, the opening of the suction channel is not located at the bottom, as it was previously implemented in most similar robots, but from the end part. This constructive solution made it possible to increase the efficiency of self-cleaning and speed up this process. Secondly, a display is located on the base itself, which displays the status of the base, timely signaling that it is time to change the bag to a new one, or displaying the process of self-cleaning of garbage. Additionally, the display shows the battery charge and the charging process itself. Probably the most useful thing is the indication of the state of the garbage bag.
Inside the base we see a conveniently placed tool for cleaning the dust collector and the central brush, as well as the bag itself. Removing it closes the hole so dust and debris will not fall out of the bag. Under the bag is a mesh-protected motor vent that sucks debris out of the dust container.
In general, there are no complaints about the performance of the robot. It is quite heavy, which indirectly speaks of the high quality of the filling. And it is well designed, so the Viomi engineers can see that they made an effort to develop the flagship.
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Specifications
The main characteristics of Viomi S9 UV are taken out, declared by the manufacturer:
- Battery Li-Ion 5200 mAh.
- Suction power up to 2700 Pa.
- Working time up to 220 min.
- Charging time up to 220 min.
- Cleaning area up to 250 sq.m.
- The volume of the dust collector is 300 ml.
- The volume of the water tank is 250 ml.
- Passage of obstacles up to 20 mm.
- Dimensions: 350 * 98 mm.
Functionality
Let's move on to an overview of the Viomi S9 UV features. The robot vacuum cleaner is controlled via the Mi Home app. Connection will not cause any difficulties, follow the manufacturer's prompts, they are in English.
In the application, the robot builds an accurate map of the room and automatically zones it into rooms. In the settings section, it is important to highlight the following features:
- Additional sweeping around the perimeter after passing the entire available area.
- Double passage of the room.
- Choice of floor cleaning mode: standard S-shaped or more thorough Y-shaped, like in robotic floor polishers.
- Cleaning log, where you can view information about the cleaning performed by the robot.
- Setting up a cleaning schedule. Here you can select the time, days of the week, cleaning mode (including suction power and water level), as well as the desired rooms for cleaning.
- Do not disturb mode at a specified time.
- Selection of the desired cleaning cards. Yes, this robot stores several unique maps in its memory.
- Setting the language pack and the volume of voice announcements. In my case, there is no Russian language, only English.
- Tracking the status of consumables.
- Search for a robot by sound signal.
- And manual joystick control.
In addition, you can calibrate the sensors, manually operate the robot vacuum cleaner, share the controls with other users, check for updates, and explore the help section.
On the main operating panel, you can choose one of three cleaning modes: sweeping only, simultaneous dry and wet cleaning, or just wiping the floor with a napkin. Additionally, you can adjust the suction power and the level of water supply to the napkin
When working with a map, it is possible to combine several rooms into one, manually divide a room into additional zones and choose a name for the rooms. You can also set virtual walls, general forbidden zones and separate forbidden zones for wet cleaning mode on the map. The functions are translated crookedly, but I think you can figure it out. If you have any questions, write in the comments. Well, in addition, there is a choice of a point on the map for local cleaning with a robot vacuum cleaner, as well as individual rectangular cleaning zones.
These are the main functions of the application. It is important to note that Viomi S9 UV automatically increases the suction power when driving onto carpets and is controlled through the Voice assistant.. These are also new features that were not previously available in Viomi's robots .
Navigation
Finally, let's move on to the tests. First of all, let's check the Viomi S9 UV navigation in an obstacle room. First, the robot vacuum cleaner passes the perimeter of the room, after which it switches to the passage of the entire available area with a snake. He did not get stuck on the dryer, he separately swept around each chair leg and a box, after which he successfully returned to the base and cleaned himself. The test passed successfully.
As for cleaning the entire area of the house, after the familiarization passage, the robot automatically zoned the room into rooms and cleaned room by room, first passing the perimeter, and then with a snake each of the rooms. Cleaning 32 sq.m. it took only 26 minutes. The cleaning speed is high, and the navigation itself left no questions. Move on.
Suction power
But with regard to the suction power, there is a double opinion. In terms of sensations and volume, the robot is at a level more powerful than its predecessors, but it managed to suck out debris only from 2-mm slots on the stand.
In principle, like other robotic vacuum cleaners with a declared suction power of up to 2700 Pa. So the suction power is above the market average, but not too different from Viomi V3 and SE.
Dry cleaning on laminate
But the quality of dry cleaning pleased. The test additionally involved cat food and litter for the tray, at the repeated request of subscribers. So the robot coped well with dry cleaning and was even better than the other round robots, it was able to sweep out the debris in the corners. The test passed successfully.
Cleaning the carpet
And surprisingly, this model has a very high level of cleaning on the carpet, which is not standard as for robotic vacuum cleaners of the Viomi line. They usually specialize in wet cleaning, but they are less clean on carpets. But Viomi S9 UV showed a good result, qualitatively cleaning the carpet from various debris, including hair and wool.
In addition, as mentioned earlier, this model has introduced an automatic power increase on carpets, so that it is suitable for thorough cleaning on different floor coverings.
Wet cleaning
As always, there are no significant complaints about wet cleaning. The robot was able to wipe some dried dirt off the floor. There is only a small strip along the plinth, but this is the problematic spot of all the robots that we had on the test.
In general, Viomi S9 UV performs well delicate wet cleaning, both on tiles and laminate. The wetting of the napkin and the floor surface is uniform. Even at maximum water supply, there are no puddles left and the wooden flooring will not be damaged.
Passage of obstacles
The 2 cm high runners can be easily moved by the robot vacuum cleaner, so the permeability is good for this model.
Passage of dark surfaces
But Viomi S9 UV is afraid of dark coatings, recognizing changes in height, this is the first note to the robot.
Noise level
And finally, let's check the noise level of Viomi S9 UV in different modes. In polishing mode, the noise level is from 58 to 61 dB. At the minimum suction power it reaches 65 dB, in the standard mode it is within 69 dB, at an average power it reaches 72.5 dB, and in the "Violence" mode the peak value was 74 dB.
Summing up
Viomi S9 UV has been reviewed and tested in detail.
What can I say about this model after detailed acquaintance and testing. Here are some of the positives worth highlighting:
- Self-cleaning debris base with more efficient suction placement and indication on the base itself.
- Good navigation based on lidar and sensor systems.
- High-quality wet and dry cleaning, and the robot vacuums carpets well and automatically increases the suction power on them.
- Viomi S9 UV sweeps out debris better in corners than other round robotic vacuum cleaners.
- All advanced functionality is provided in the application.
- The suction power is above average.
- Good cross-country ability of the robot.
- Good build quality.
The UV lamp cannot be attributed to the advantages of the model, because I cannot verify its effectiveness in any way. But you shouldn't forget about it either. Perhaps Viomi's engineers have really achieved results and the robot vacuum cleaner is capable of disinfecting the surface while cleaning.
Of the minuses, I can only highlight the increased noise during work and the fear of black floor coverings. Otherwise, for your money, this is a great option to buy, especially if you choose a wet and dry robot vacuum cleaner with a self-cleaning garbage base. Viomi S9 UV left an overwhelmingly positive opinion about itself and is therefore highly recommended for purchase.
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On this note, I would like to end the review. Happy shopping to everyone. Bye!
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