Test Roidmi Eva: an efficient robot vacuum cleaner, but not very thorough

Ease of use

Eva makes us think of a small futuristic tank. Made of white and black plastic, topped with a large bumper, this robot is ready to fight the dust. And to do this, a laser rangefinder installed on its hood allows it to move around and detect obstacles in its path. This turret, on the other hand, makes it reach 10.6 cm in height, which can be complicated to pass under some furniture, unlike the 7.7 cm of the Yeedi Vac 2 Pro.

Under its hood hides a dust collector with a capacity of 300 ml, where a HEPA filter is attached. For comparison, it is half of the Dreame L10 Pro which rises to 600 ml. So the robot vacuum cleaner is obliged to multiply back and forth to empty this collector into the dust bag located at the base. These back-and-forth movements are also necessary to wet Eva’s mops, since the robot does not carry any water tank. Next to the dust bag, the station has two bins of 4 l each: one full of clean water and one responsible for recovering the dirty water after cleaning.

To collect the waste, a large brush takes place on the stomach of the Roidmi. Made of rubber and nylon bristles, it is effective on all surfaces, but we will return to this when discussing the results of our suction tests. A small side brush is also installed on the side of the device and takes care of transporting the dust towards the central brush.

Two mops can be installed under the robot vacuum cleaner. The Chinese factory informed us that they make 180 revolutions per minute and have a pressure of 12 N on the ground. They are attached to the device with two magnets and removed from the support to get to the machine. So the user does not need to wash it by hand, unlike the Dreame W10 pads, for example.

Finally, three buttons sit on top of the robot to launch a complete or targeted cleaning, or even to ask it to return to the station. Others are placed later and the Roidmi Eva is ordered to empty its collector, wet its mops, return to its base or launch a cleaning. The station also has a screen that notifies the user when there is a maintenance problem. The icons are particularly visible when the dust bag is full, such as the waste tank, or when the battery is low and there is a lack of clean water. But the robot vacuum offers more options when the user goes through the Roidmi mobile app.

Connection and app

The method of pairing the robot is very simple. You need to select the device from the list of products offered, then connect the vacuum cleaner to wifi. The Eva then appears on the home screen and we have immediate access to its battery level and a summary of the cleaning session in progress. Four suction powers are offered by the manufacturer, as well as different cleaning methods: washing and vacuuming, washing only or vacuuming only. In other words, when the mops are installed, the robot cannot stop washing the floor. In fact, he was unable to lift his two skates and therefore had to walk around on the mats.

As with most robot vacuum cleaners, the user can define the area to be vacuumed. It selects one or more rooms in the house, draws a specific area or restricts the space to be cleaned. An option called Point, redundant and not very useful we must admit, is also available and automatically draws an area of ​​1.6 x 1.6 m.

More options are available by clicking Next, such as custom, multi-stage, or device component health. The app notifies the user immediately when the sensors need to be cleaned or the filter changed.

From left to right: the parameters available by clicking Next, the multi-stage option and the health status of the robot components.

From left to right: the parameters available by clicking Next, the multi-stage option and the health status of the robot components.

For our test, we installed the Roidmi application, but you should know that the user has a choice between it and Xiaomi Home. The latter is preferable for people who have other connected things from the Xiaomi ecosystem, because it allows you not to increase the number of apps on your mobile. Above all, the Xiaomi app is more comfortable than the second: the menus are more intuitive, as well as the main controls. In fact, the Roidmi app deserves some improvements to make it easier to find the robot’s options and features.

Editor's Rating: 4 out of 5


As mentioned above, the docking station empties the robot dust collector, although it is possible to deactivate this option through the application. So the user does not need to worry about this step; he only needs to replace the dust bag when it is full.

This configuration is more comfortable because the collector is not so easy to remove and the residues inside sometimes fall inside the robot. Note that debris can also be seeded around the docking station, on the way back to Eva. To solve this defect, Roidmi made it possible to unclip the tray inside the station to clean it with water and prevent the growth of bacteria.

This gray tray can be unclipped for easier washing.

This gray tray can be unclipped for easier washing.

Finally, we want to test the filtration performance of the robot vacuum cleaner. Remember that it is equipped with a HEPA filter located in the dust collector. To do this, we spread 20 g of cocoa on the ground and ask the device to swallow it. When its task is complete, it naturally returns to its base to empty its dust container. We weighed the filter again, and what a surprise to find that there was no cocoa left. Although the Roidmi filter performance is very good, it does not relieve the user of having to clean the filter with clean water if it is too clogged.

Editor's Rating: 4 out of 5

Navigation system

From the first cleaning sessions, we noticed that the Eva returned to its base very quickly. Each time, he starts by going around the room, then covers the rest by making zigzags. Its movements are fluid and its path is unmistakable.

To better understand its navigation system, we scattered piles of sawdust in several strategic places: under the radiator, in a corner of the room, next to the trash can, under the table, under the curtain and even in the middle of the room. . half of the lab. Eve started running and we left it alone in our laboratory. After a few minutes, we returned and unfortunately discovered that most of the piles were still there.

The robot actually considers the curtains as walls and therefore does not bother to push them, even a little, to vacuum behind them. Despite its side brush, we also find a lot of sawdust in the corner of the room and under a piece of furniture; a place that doesn’t seem too difficult to clean. Finally, streaks appear around the base and even in the middle of the room…

Now we observe the behavior of Eve against some obstacles. Roidmi claims in particular that his robot can climb obstacles of 20 mm – 15 mm with mops. We confirm the statements of the Chinese manufacturer because the vacuum cleaner passes without difficulty over the bars of the chairs, as well as large cables. However, he decided to swallow the better ones, at the risk of blocking his brush.

Strong points

  • The docking station is very complete.

  • Good absorption performance.

  • Good stamina.

Weak points

  • Average surface area.

  • Poor washing performance.


we tried that we wanted
Global score

Editor's Rating: 4 out of 5

How does grading work?

With its Eva, Roidmi promises a nearly autonomous robot vacuum cleaner. In fact, the device vacuums and washes the floor, while its station takes care of emptying its dust collector, wetting its two mops and washing it after the cleaning session. Equipped with a laser rangefinder, the Eva navigates methodically. On the other hand, it struggles to absorb into the corners and under certain pieces of furniture, and its pads are not very effective.

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