Roborock S4, the new robot from the Xiaomi manufacturer, now smarter

El Xiaomi robot manufacturer, Roborock, continues to expand its range, with more modern robots that maintain clear continuity with their predecessors, like this Roborock S4.

The brand continues to develop its implementation process in Europe, and at the same time that it manufactures for Xiaomi, it has brought to the market interesting models with own brandand Roborock S6 or S5 Max, both with a scrubbing system included (more advanced, by the way, in the case of the S5 Max).

For its part, the Roborock S4 only vacuums, it does not have scrubbing, but it has some characteristics that also make it very attractive, as we will explain in this extensive review.

Roborock S4: our assessment

The Roborock S4 has obtained a rating of 95 points out of 100. It is a new generation robot, which maintains the advanced features of other range brothers in terms of the navigation system -based on laser- and the high suction power, of 2.000 Pascals.

In addition, thanks to some tweaks in the robot's design, its sensor system, and improvements in navigation software and movement abilities, The Roborock S4 performs especially well in complex environments, with many obstacles, getting out of complicated areas with relative ease, such as chairs with low legs.

Roborock S4: What's in the box

Roborock S4: start-up

As usual, the robot comes partially charged, although a full, long-term charge is recommended before putting it into operation for the first time. To do this, it can be left charging overnight.

The charging base will preferably be located in a central location in the house. As usual, the robot can be started and sent to the charging base from the corresponding button at the top, although it is advisable to install the application, which will allow us to exploit its full potential.

Installing the app

As usual in high-end robots, The Roborock S4 is manageable through an app. This provides greater comfort and versatility, since we can control the robot at any time and from wherever we are, in addition to giving us access to a multitude of functions and information.

Roborock is part of the Xiaomi universe, and in fact it is the manufacturer of this brand's robots. That's why, The Roborock S4 is manageable through the Xiaomi app, Mi Home. Once this is installed and an account is created, you can add the device automatically, or manually, in the home appliances section, choosing S4. As usual in this application, during the process it will allow you to share the device with other users.

On the other hand, as we told you at the beginning, Roborock is also immersed in a process to develop its own products, under its name, so now It also has its own app, which you can find for both iOS and Android.

When configuring the connection with Wi-Fi, you must keep in mind that this model Only compatible with 2,4 GHz networks. Therefore, if your router is dual, you should choose this network, and not the 5 GHz one (which will say 5G or similar).

Roborock S4: operation

Although it is a new generation robot, The Roborock S4 maintains some of the features that have made the devices of this manufacturer highly appreciated.

For starters, its advanced laser-based navigation system allows you clean quickly and efficiently. The robot is capable of covering up to 100% of the home surface, and cleans approximately one square meter per minute, or even more.

In fact, in some tests it has shown that its new generation software allows it to be between 5% and 10% faster than one of the most successful models on the market and its predecessor, such as the Roborock S5 (also known as Xiaomi Vacuum 2).

For its part, The suction power remains at a remarkable 2.000 Pascals., like other Roborock models, a figure that is more than enough to perform excellent cleaning on all types of floors.

The battery is also similar to that of other models of the brand, with 5.200 mAh capacity, which provides you with 150 minutes of autonomy.

In addition, The S4 has loading and continuation, so that if it has not finished completely cleaning the home, it returns to the base and recharges to 80% to resume cleaning where it left off.

As for the noise level, it is around 68-69 decibels., resulting slightly noisier than the S5, perhaps due to the new design of its brush, as we will explain below.

The tank is another aspect that has been improved compared to previous models, since it has a greater capacity, so it must be emptied less often.

The redesign of the terminals also stands out; now the charging base is vertical, so the robot does not have to climb onto the charging base, but rather rests on it, in the style of, for example, the Conga 3690.

The new brushes of the Roborock S4

One of the new features that the Roborock S4 presents compared to models from previous years is in the brushes. As in the S6, the S4 has 5-arm side brushes, instead of the traditional 3, and made of silicone, instead of the classic bristles.

This new design gives the brushes a great flexibility and resistance, so that they remain longer in good conditions of use.

Moreover, The central brush also offers new features. Although it is apparently similar to those of the S5, for example, it has a greater density of bristles, which allows you to carry out a more thorough cleaning job, both when collecting dirt on hard floors and when removing dirt from carpet hairs.

This higher density may be the reason why it is slightly noisier than the S5; By including 25% more bristles, greater friction is produced.

In any case, it is not excessively annoying either, and it is also worth remembering that, like other models of the brand, the Roborock S4 has four power levels, so we can adjust it depending on our needs.

Also, as seen in the previous photo, the position of the nozzle has been slightly modified to improve suction capacity.

Room cleaning

The S4 recognizes the rooms that make up the home, so it can be sent to clean one or more rooms quickly and easily.. This functionality is one of the most requested currently by buyers of high-end robots, and it is very convenient.

Of course, The robot is programmable, and in programming you can also define the rooms to be cleaned, as well as the cleaning mode.

Furthermore, as is common in robots with laser navigation, it is also possible to define  cleaning areas (for example, if we want it to clean only under a table) and restricted areas, which we do not want you to access.

The Roborock S4 does not get stuck

One of the aspects that has had the most influence in the design of this product is its ability to clean in complex environments.

Thanks to its excellent laser navigation system, The robot calculates distances with great precision, getting in and out of places that other robots would find very difficult.

In addition, Its transmission and suspension have been improved, achieving very fine navigation and a very powerful recoil capacity., which allows the Roborock S4 to emerge victorious in places where other robots get stuck, such as the low legs of chairs.

Thus, The Roborock S4 is a great alternative for both large homes, as it is capable of cleaning huge areas, and for small homes, where there are usually more difficulties with furniture.

Advantages of the Roborock S4

Opinions about the Roborock S4

Better and cheaper than a Roomba. It has a large tank and a brush that prevents tangles, there is a lot of hair at home and no problems. You can program it, assigning the power to the schedule, and assign cleaning zones and exclusion areas. If you don't need mopping, this robot is very good, it works excellent on hard floors and does not get tangled.

this robot It sucks very hard, maps perfectly and doesn't cause any problems.. It is built with great quality and the app works very well, allowing you to select areas and rooms. An excellent robot.

This robot has a navigation system and sensors similar to those of its older brothers, the S6 and S5 Max, but without scrubbing. If you don't need scrubbing and want a robot that vacuums well, this is yours. It is compatible with the Xiaomi app and is super easy to configure and manage. I recommend the room cleaning function.

It's a premium robot with a very reasonable price. A quality device, silent, good autonomy and easy to use app. A great choice, I don't see any weak points.

LThis is the best purchase I have ever made, it sucks very well, it makes very little noise and the app is very easy to use.. He drew the map well the first time, a very comfortable robot without errors.

Why buy a Roborock S4

If you want a new generation robot, robust, reliable and with a high number of functionalities, capable of cleaning in complex environments and belonging to one of the leading manufacturers on the market, the Roborock S4 is an excellent option.

If you want a robot with the most advanced navigation, laser-based; if you are looking for it to be manageable via app, and that provides you with the comfort of clean by room, delimit restricted zones and areas. If you want a device powerful and efficient, capable of cleaning large surfaces and doing so in a short time, the Roborock S4 is a magnificent alternative.

Roborock S4 vs other Roborock

Below, we show you a comparison table between the new Roborock S4 and other models from the same manufacturer: