What makes a good robot vacuum cleaner?

The story of the robot vacuum cleaner began as early as the 1990s, and in the past 10 years, the demand for these practical household helpers has increased significantly. According to Graphical Research, the household vacuum cleaner market size in Europe exceeded $5.5 billion in 2019 and is expected to register a growth rate of over 5.8% from 2020 to 2026.

KBV Research estimates that the household vacuum cleaner market size will reach $17,568.2 million by 2023, growing at a CAGR of 4.9% between 2017 and 2023.

As a consumer, you may be asking yourself: do I need a robot vacuum cleaner too? If so, which brand and model is best? Are there vacuum robots with a super price-performance ratio? You ask yourself a thousand questions when you are ready to spend a few hundred euros on a new product. The necessary understanding of the basic specifications will help you choose the right robot vacuum cleaner. In the following text, we will present you the most important features of a good robot vacuum cleaner to make your decision easier.

1. suction power and wiping function as additional features

With the advancement of technology, the robot vacuum cleaners have more and more diverse functions, but the suction power remains one of the most important. This is mainly about the suction power, which is expressed in "air watts", in "mm/H2O" in "pa/kPa" (Pascal/Kilopascal). With a power between 1300 and 2200 Pa, you can assume a very good suction result. The Chuango RV-500 with suction power of 2200 Pa can not only easily pick up dust from hard surfaces, but also vacuum dirt from carpets and other fabric surfaces. Besides the suction power, you should also consider the motor power of the robot vacuum cleaner and rotation per minute: With at least 10,000 revolutions, the robot vacuum cleaner develops good suction power.

Meanwhile, many robot vacuum cleaners also offer the wiping function in addition to the suction function, which means that the robot vacuum cleaner also takes over the wiping in addition to the vacuuming, so that you can save even more time and energy. The wiping function is divided into active and passive wiping systems. An active mopping system has an integrated water pump, with which you can regulate the moisture intensity yourself and thus adapt it to the floor covering and the degree of soiling. A passive wiping system does not have its own water pump. When choosing the mopping function, you should pay attention to the floor types: for hard floors such as tiles, real wood floors, laminate, PVC or parquet, the passive mopping system is suitable. For sensitive floors, the active mopping system would be more beneficial.

2. battery life and battery charging:
Based on tests from the Robot Vacuum Cleaner Portal, a robot vacuum cleaner can handle a 25-square-meter room in 25-30 minutes. In fact, the battery life depends on several factors: the robot vacuum model, the power mode - a smart robot vacuum can alternate between different cleaning modes such as spot mode, auto mode, edge mode, etc. as needed-, the room setup, the level of dirt, etc. The battery life of different models ranges from 60 minutes to 200 minutes: Bagotte BG600 MAX and Eufy RoboVac 30V can last a maximum of 100 minutes, while Chuango RV-500 has an above-average maximum battery life of 150 minutes. The longer the battery lasts, the larger the area that the robot vacuum cleaner can clean in one go and the less often the robot vacuum cleaner needs to be recharged.

A small digression on the battery: the modern robot vacuum models mainly use lithium-ion batteries, which guarantee greater capacity, shorter charging time and longer durability. Since the robot vacuum cleaner itself is equipped with a suction tank, water tank and other accessories, it does not have much space for heavy and large batteries, accordingly, a lithium-ion battery is well suited. Modern robot vacuum cleaners are programmed to automatically return to the charging station after its cleaning tours or when the battery level is very low - of course, the cleaning process can also be stopped at any time via app and sent back to the station for recharging. A full charge varies by model and can take between three and six hours.
3. sensor technology and navigation system

Your robot vacuum is designed to effectively clean your living spaces, so it needs to reach as many places as possible, traverse areas under beds, cabinets, tables or chairs, and in the best case scenario, it should also be able to cross carpet edges or avoid stairs. A robot vacuum cleaner is equipped with a number of sensors that allow it to detect obstacles.

Among the robot vacuum navigation mainly distinguish random navigation, gyroscope navigation, camera navigation and laser navigation.

Many low-cost robot vacuum cleaners with random navigation have the so-called "touch sensors" and bumpers (bumpers) to analyze the environment and react. When the robot vacuum encounters an obstacle, it turns at a certain angle and makes a new attempt to drive, this is repeated until the robot vacuum can drive freely again. With this gyroscope navigation, the robot vacuum cleaner "remembers" the rotations of its wheels from the start from the base station, thus the robot vacuum cleaner travels straight paths in a room without repeating the routes. With the camera, the robot vacuum cleaner can better grasp the environment and thus navigate more precisely. Only in the dark the camera sees worse, so that the robot vacuum takes longer. Laser navigation has been called the most advanced navigation method so far, with this the robot vacuum cleaner can easily find its way through the apartment even in complete darkness. Such robotic vacuum cleaners, such as the Roborock S7 and Ecovacs OZMO 950, cost more than 400 euros.

If a magnetic tape (boundary strip) is included with the robot vacuum, it means that the robot vacuum has sensors on the bottom that can detect the magnetic field and thus initiate the change in movement. If you put the boundary strips around a high pile carpet or around the plant shelf, the robot vacuum will detect it and will not travel over this "virtual area".

In addition to obstacle and magnetic field detection, the robot vacuum should be able to overcome certain obstacles, as well as door thresholds or carpets - the climbing ability reaches between 1.3 and 2.4 cm, depending on the model of different brands.

4. the device size:
The average height of a modern robot vacuum cleaner is about 7-8 cm
, and the diameter is about 30-35 cm. Usually, the areas under the sofa or bed are not cleaned often, so a thin robot vacuum cleaner can help you vacuum or mop the hard-to-reach areas without pushing the furniture around yourself. Furthermore, a smaller diameter robot vacuum cleaner can move between the furniture more flexibly.

A robot vacuum cleaner with a dusting and mopping function has a water tank in addition to the suction container. The larger the tanks are, the less often they need to be cleaned. So both large and small device sizes have its advantages.
5. volume:

Compared with a conventional floor vacuum cleaner, which has an operating noise of about 65 - 80 decibels, a smart robot vacuum cleaner is much quieter. The operating noise of a good robot vacuum cleaner should be around 50 - 65 decibels - which is about the same as the volume of a running faucet. At the quietest level, i.e. with the lowest operating noise, you can even let the robot vacuum work in the evening or at night without waking you up or disturbing your neighbors.

6. other features:

Aside from the features mentioned above, there are other features you should look for when choosing your robot vacuum cleaner. If you're a real techie, the app and programmability of the device are probably important to you. Can cleaning and scheduling plans be created? How easy is it to control the robot vacuum via app? A wide range of accessories is also an attractive extra for many users.

A survey by Vacuums Guide comes to the following conclusion:

This survey is only for reference to represent consumer needs and product requirements.
Conclusion:

Robot vacuum cleaner is indeed a good helper for household chores, so many factors should be considered when choosing it. While the features like suction power or battery life play an important role, it is even more important to know the unique cleaning requirements of your home and then choose the product that best suits you.

One thing is for sure: there is no one "best" robot vacuum, but there is the perfect one for you, because ultimately everyone makes their decision based on their own needs.

If you have a certain budget, such as 250 euros, and you want a robot vacuum cleaner with all the basic functions, you should consider the Chuango RV-500. For more information, click on: Robot Vacuum Cleaner RV-500 - Chuango Smart Home.

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