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robot vacuum cleaner

The 6 Best Robot Vacuum Cleaners in 2021

Author: Joanna Davis

Home & Kitchen Expert

The best household appliance is one that does the chore of household chores all by itself – like the robot vacuum cleaner. The small, manoeuvrable vacuum cleaners independently drive through the entire living space and clean even places that a conventional vacuum cleaner would be difficult to reach. So it’s hardly surprising that everyone wants a robot vacuum.

This guide would like to support you in the purchase decision of a vacuum cleaner robot. It highlights the best currently available models and explains the techniques, the software and the important purchase criteria. How can a vacuum robot be controlled? Which models can be connected to the smartphone? How long does a battery last before the robot drives back to the charging station? The guide answers the most frequently asked questions about the small robots and explains how to use them.

Read our test about the best robot mops.

1. iRobot Roomba 671 Robot Vacuum

iRobot Roomba 671 Robot Vacuum
  • 3-Stage Cleaning System and Dual Multi-Surface Brushes pick…
  • Patented Dirt Detect sensors alert Roomba to work harder on…
  • Full suite of intelligent sensors guide the robot under and…
  • Edge-Sweeping Brush is specially designed at a 27-degree…
  • Clean and schedule from anywhere with the iRobot HOME App;…

According to the manufacturer, the iRobot Romba 671 robot vacuum cleaner is suitable for all types of floors and is equipped with a dual multi-floor brush system and a three-stage cleaning system. The robot vacuum automatically detects the surface. The device differentiates between wood, tiles and carpet.

The manufacturer iRobot has developed a brush module with counter-rotating cleaning brushes to prevent the fringes and tassels from getting caught on the carpet. The special edge cleaning brushes are designed to pick up everything from the finest dust to larger dirt particles. There is also the Dirt Detect feature. This is intended to make heavily soiled floors shine in several cleaning cycles.

The unique iAdapt navigation: With the iAdapt 1.0 navigation, the software of the vacuum cleaner creates a map of the apartment. The device knows where hard objects such as tables and chairs are and where soft obstacles such as curtains are. Based on the information transmitted by the sensors, the iRobot Romba 671 makes over 60 directional decisions per second.

When starting the robot for the first time with the iRobot Home App, the user creates a schedule for cleaning the floor. According to the manufacturer, the software provides practical tips in addition to the possibility of creating cleaning plans to get the most out of the vacuum robot. Push notifications can be activated to provide information on the current cleaning process and ensure intelligent cleaning coverage.

This robot vacuum cleaner is suitable for removing coarse dirt, dust, hair and animal hair. The manufacturer iRobot gives a 2 year guarantee on this robot vacuum cleaner. The rechargeable XLife battery comes with a 12 month guarantee. In addition, this model offers:

  • Rechargeable XLife battery
  • Home base charging station
  • Charging cable and instruction manual


2. iRobot Roomba 692 Robot Vacuum

iRobot Roomba 692 Robot Vacuum
  • CLEAN SMARTER – Sleek, premium design complements your home…
  • LOOSENS, LIFTS, & SUCTIONS – The 3 Stage Cleaning system &…
  • Contains everything you need to help maintain your robot’s…
  • Kit includes:

The iRobot Roomba 692 vacuum cleaner robot has the special iAdapt navigation. According to the manufacturer, this means that the robot is equipped with numerous intelligent sensors and makes over 60 decisions per second in order to adapt to the different rooms in the home. Thanks to integrated precipice sensors, the vacuum robot is able to detect stairs and edges, ideally also carpet edges.

The device has a corner and edge cleaning brush, two multi-bottom brushes and a vacuum suction system. It cleans by automatically adjusting the height of the cleaning head and is equally suitable for carpets and hard floors. The diameter is 34 centimeters, the overall height 9.5 centimeters.

The unique iRobot Home App: The iRobot Roomba 692 vacuum cleaner robot is WiFi-enabled and can be programmed and controlled via the iRobot Home App. Remote monitoring is also programmable.

Thanks to the acoustic sensors of the dirt-detect technology, the robot should be able to recognize heavily soiled areas independently and clean them more intensively. He works with a three-stage cleaning system for animal hair, fine dust and larger crumbs. The Amazon Alexa or Google Assistant voice assistants can be used to control cleaning.

3. Ecovacs DEEBOT OZMO 920

 Our Pick
Ecovacs DEEBOT OZMO 920 2-in-1 Vacuuming and Mopping Robot
  • Simultaneous vacuuming and mopping in-1-go: DEEBOT 920…
  • Smart laser navigation & multi-floor mapping: Smart Navi 3….
  • No-Go zones & carpet detection: Virtual boundary for not…
  • Strong climbing ability & optimized brush design: Combined…
  • Continuous Cleaning & Smart Control: A longer battery life…

The Ecovacs Deebot OZMO 920 vacuum cleaner robot is a combination device consisting of a vacuum and mopping robot, which thanks to a new design and modern mopping technology should offer a strong suction power. According to the manufacturer, it can quietly and thoroughly clean hard-to-reach areas. Thanks to carpet recognition, the model differentiates between carpets and hard floors and adjusts the suction power accordingly. The vacuum cleaner robot can be controlled either manually or via the Ecovacs Home app for the smartphone. With this, virtual borders can be drawn on the map in order to omit or prioritize certain areas during cleaning.

The SmartNavi 3.0 navigation: With laser navigation, the Ecovacs Deebot OZMO 920 vacuum cleaner robot is able, according to the manufacturer, to create an interactive map of the area and efficiently plan cleaning.

The navigation technology should be able to store up to two interactive maps – for example for different floors. The mopping technology should allow the consumer to vacuum and wipe with a damp cloth in one go and set the humidity level via app. The robot is compatible with Google Home and can be controlled by voice command. Thanks to integrated step sensors, the robot recognizes stairs and other obstacles. It is delivered with four side brushes, two fine dust filters, a charging station, a water tank and two microfiber cloths. The dust container has a size of 430 milliliters.

4. Bagotte Max Power Suction Robotic Vacuum Cleaner

Bagotte Max Power Suction Robotic Vacuum Cleaner
  • 【Max Vacuuming Cleaning】1500PA Vacuum Robot will…
  • 【2.7″ Super Slim Design】 New upgraded, the Bagotte robot…
  • 【Low Noise & 100 minutes】This vacuum robots is super…
  • 【Multiple cleaning modes & Recharge】Multiple different…
  • 【360° Intelligent anti-drop】Robotic Vacuum has built-in…

The Bagotte BG600 vacuum cleaner robot has a slim design with a height of only 6.9 centimeters. In this way, the robot should be able to move under furniture to keep it clean. It is a 3-in-1 combination device with mopping, vacuuming and sweeping functions. According to the manufacturer, there are six different cleaning modes available. The general suction power is given as 1,500 Pascal. The maximum battery life is specified as 100 minutes. The robot is certified with the energy efficiency class A+++ and should be suitable for carpets, animal hair and all types of hard floors.

The intelligent cleaning system: According to the manufacturer, the Bagotte BG600 vacuum cleaner robot moves around the room independently with the so-called three-point cleaning system. This ensures that the floor is moved consistently. Even angled corners and all edges can be easily reached.

The robot hoover automatically returns to the charging station supplied when the battery capacity is less than 20 percent. Further technical specifications include a fall protection system and various collision sensors. The improved motor should enable a quiet cleaning environment with a maximum noise emission of almost 55 decibels.

5. Tesvor X500pro Robot Vacuum

 Our Pick
Tesvor X500pro Robot Vacuum
  • ◆Hybrid 2-in-1 Vacuum and Mop:Sweeping and mopping ,…
  • ◆Hybrid 2-in-1 Vacuum and Mop:Sweeping and mopping ,…
  • ◆Up to 100mins Run time: Ultra-high battery capacity…
  • ◆VOICE & APP CONTROLS: Works with Alexa & Google Assistant…
  • ◆Hassle-free Cleaning: The smart navigation maps your…

The Tesvor X500pro vacuum cleaner robot is a 2-in-1 combination robot with a wiping and a suction function. The start of cleaning can be set for a specific time using the app and timer. Voice control via Amazon Alexa or Google Home is possible. Unfortunately, the app control only works via the 2.4 gigahertz WiFi, but not via the less interference-prone 5 gigahertz band. The manufacturer specifies the operating time as up to 120 minutes. During this period, an area of ​​up to 150 square meters should be cleaned. When the device detects that the battery is almost empty, it automatically returns to the charging station.

With the Tesvor X500pro robot vacuum cleaner app, a map updated in real time can be used to see in detail where the cleaning has already taken place and in which area the robot vacuum cleaner is located. Possible errors, for example in room recognition, are directly visible via the app. The device remembers the areas to be cleaned and can recognize previously unprocessed areas. The manufacturer puts the suction power at 1,600 Pascal.

Due to its low height of 7.5 centimeters, the robot should be able to clean under cupboards and seating without any problems. The model has a three-filter system for dust-free air in all rooms. The robot is equipped with a 350 milliliter water tank that should support the wiping process for almost 80 minutes. There are also anti-collision and fall prevention sensors and durable bumpers for more safety.

6. eufy by Anker, BoostIQ RoboVac

 Our Pick
eufy by Anker, BoostIQ RoboVac
  • Included in the “Best robot vacuums of 2019” by Tom’s…
  • All-New RoboVac: Re-engineered to be the slimmest* RoboVac…
  • BoostIQ Technology: Automatically increases suction power…
  • A Quiet Clean: Vacuums for up to 100 minutes** on hardwood…
  • Premium Features: Anti-scratch tempered glass-top cover for…

The eufy by Anker RoboVac 11S is a robot vacuum cleaner that is only 7.2 centimeters high and has a suction force of 1,300 Pascal. The low height is designed to help the device clear dust and dirt under a sofa or bed. The model has a powerful lithium-ion battery with a capacity for an operating time of up to 100 minutes. The robot has an anti-scratch surface made of hard glass and an integrated infrared sensor. The latter is intended to ensure effective obstacle detection and a good height assessment for avoiding falls, for example on stairs.

The eufy by Anker RoboVac 11S vacuum cleaner robot has an automatic charging function. If the vacuum cleaner has no more battery capacity, the device automatically returns to the charging station and takes responsibility from the consumer. The “Boostiq” technology is intended to increase the suction power on areas that are difficult to clean and very dirty.

The delivery scope of the vacuum cleaner robot includes a remote control with two AAA batteries, a charging station, an AC charger, cleaning tools, four side brushes, an additional filter set, five cable ties, an instruction manual and a warranty card for a claim of 12 months.

Frequently Asked Questions: Robot Vacuum Cleaners

What is a Robot Vacuum Cleaner?

Vacuum cleaner robots belong to the latest generation of smart vacuum cleaners that can either vacuum or mop the floor. Every day around 6.2 milligrams of dust per square meter occur in the household. The dust contains not only fiber waste products but also dead skin, fungal spores, human hair, animal hair and other particles. Bacteria and germs can multiply undisturbed in this environment. Regularly cleaning the floor can reduce the development of skin irritations and allergies.

Robot vacuum cleaners are an uncomplicated solution for cleaning. They vacuum the apartment, drive programmed routes or move from wall to wall. Robot vacuum cleaners replace daily vacuuming and cleaning in most cases more thoroughly than the human hand. Most robotic vacuum cleaners are equipped with a dust collector, only a few have a vacuum cleaner bag. Some of the robot vacuums can be converted into a mopping robot or wipe the floor with a damp cloth as required.

As a rule, sensors such as contact sensors in the vacuum cleaner robots ensure that the device does not fall down stairs or strike walls or furniture. Vacuum robots usually have different running times and drive independently to the charging station when the battery level is low. The battery is charged there. However, there are differences in the rest of the equipment and the functions offered between many vacuum robots. These are:

  • A digital control
  • Extra brushes
  • A wipe function and
  • Special suction programs


The robot vacuum is navigated using sensors that recognize and “report” obstacles. Some devices change direction when they hit a piece of furniture or a wall, other robot vacuum models have a camera that can be found on the top of the device. Additional infrared sensors and the camera make it possible for the robot vacuum cleaner to assess the room coverage.

How does a robot vacuum cleaner work?

Vacuum cleaner robots usually have several brushes on the underside, regardless of the price. The brushes stir up the dust, which ends up in the collecting container through the robot’s suction device. According to almost all manufacturers, this cleaning behavior is considered effective and thorough. Most robotic vacuum cleaners scan the area several times to improve cleaning performance in a room.

Some vacuum cleaner models have side brushes to clean corners and edges without leaving any residue. The dust collector in the robot collects dust, dirt and allergens. Some robots have additional filter systems, for example the HEPA filters. These catch the fine dust and do not swirl it outwards. This filter technology is very useful for allergy sufferers. At this point we give a brief overview of the filter systems known from vacuum cleaner robots:

EPA: The abbreviation EPA stands for “Efficient Particulate Air (filter)”. In order to receive an EPA mark, particulate filters must achieve a certain, standardized degree of separation. At EPA, this level must be at least 85 percent. A more precise classification can be made via the European standardization according to filter classes. There are three filter classes at EPA: Robots with class E10 can filter more than 85 percent of the particles from the air, devices with class E11 manage more than 95 percent, while models in the top class E12 can remove more than 99.5 percent of all particles .

HEPA: The abbreviation HEPA stands for “High Efficient Particulate Air (filter)”. HEPA markings are usually assigned to particulate filters that are used in air purifiers, vacuum cleaners and air washers. To achieve this certification, a vacuum cleaner robot must achieve a standardized degree of separation. HEPA filters are in a class above EPA filters, but below ULPA filters. A more precise classification can again be made via the European standardization according to filter classes. An H13 filter can filter more than 99.95 percent of all particles from the air, while an H14 filter can filter more than 99.995 percent of all particles.

ULPA: The abbreviation ULPA stands for “Ultra Low Penetration Air” and designates high-performance particulate filters with a separation efficiency that is even better than that of HEPA filters. These filters are rarely used in vacuum cleaner robots for reasons of cost and efficiency and are currently only used in very sensitive clean room areas. Examples would be commercial institutions such as research laboratories or hospitals, where every percentage point matters. According to European standards, ULPA filters can be divided into three categories according to filter classes: U15 filters filter more than 99.9995 percent of all particles from the air. Class U16 devices manage more than 99.99995 percent. The best filters on the market are those of class U17, which can remove more than 99.999995 percent of all particles from the air.

The collecting container can be emptied by hand after the cleaning process. There are only a few vacuum robots on the market that do this step independently. A disadvantage of the robot hoover compared to conventional vacuum cleaners is the smaller capacity

Advantages & disadvantages of robot vacuum cleaners

The main advantage of a robotic vacuum cleaner is the time savings it offers consumers. While you are away from home, the robot vacuum does the housework independently. Most robots work very quietly. Choosing a vacuum robot with a mopping function saves even more time. These are the main advantages and disadvantages of vacuum robots at a glance:


  • Time savings through autonomous work
  • Timer function: set the time for the robot
  • The vacuum cleaner automatically moves to the charging station
  • Clean short pile carpets and hard floors
  • Control via remote control or app
  • Various sensors ensure intelligent control



  • High price
  • Often inferior to ordinary floor vacuums in terms of suction power
  • Problems with too high doorsteps

What types of vacuum cleaner robots are there?

The majority of household appliances differ in design and shape. Most robotic vacuum cleaners have a round design. In general, all robotic vacuum cleaners are equipped with a battery-powered motor, sensors and sometimes with a camera. The differences are usually evident in the equipment and the type of navigation:

Robots with simple navigation: Vacuum cleaner robots with simple navigation drive along the paths on the floor in parallel. This variant makes sense if there are only a few obstacles in the room. Large and medium-sized areas with little furniture are suitable for these easily navigated vacuum robots. The robot moves in tracks when vacuuming. If it hits an obstacle, it turns around and sucks the next lane. However, some of the robots do not completely clean the entire area for vacuuming.

Robots with virtual walls: The vacuum robots equipped with the “virtual wall” work with artificial walls and create a limited space, regardless of the floor plan of the apartment. As soon as the robot starts moving, it travels a previously defined area. Once the cleaning process has been completed and the robot vacuum has covered the entire area, it automatically returns to the charging station.

Robot vacuum cleaner with wiping function: These models not only suck up dirt and dust, but also have an additional wiping function. Consumers have to differentiate between models with an exchangeable water tank and a combination tank consisting of a collecting container and a water tank. With the latter variant, the user saves having to change the container, but has to empty it much more frequently. Vacuum robots with a wiping function usually have a higher price than the comparable models without a wiping function.

Parallel principle versus chaos principle: How do the robots suck?

The majority of robots vacuums work on the parallel principle. That means: You drive through a room according to defined paths and in this way do not miss any part of the room. This type of cleaning is suitable for rooms that have few obstacles. If there is furniture, tables or chairs in the room, this cleaning system is less thorough.

For rooms with a lot of furniture, vacuum cleaners with a chaos principle are the better choice. The seemingly random system is effective. If an obstacle gets in the way of the vacuum robot, it turns, changes direction and continues vacuuming. As a rule, all vacuum robots find their way back to the charging station before the battery fails.

Important criteria when buying a vacuum cleaner robot

The most important factors when buying a vacuum cleaner robot are the navigation system and the type of filter installed. With a tight decision between two models, however, other factors can be decisive for or against a certain vacuum robot:

Power: The manufacturer specifies the power of a vacuum cleaner robot in watts. The following applies: the higher the output, the more effectively the device usually works. Heavy dust particles are difficult to pick up by poorly performing vacuum cleaner robots. Anyone who decides on a branded device from brands such as iRobot can be sure that the performance is adequate. With no-name brands, users run the risk of getting a device that is too weak.

Capacity: Most robotic vacuum cleaners have a bagless design, which has advantages and disadvantages. On the one hand, consumers no longer have to get dust bags, on the other hand they have to empty the device’s dust container regularly. If you do not do this, you can either no longer switch on the vacuum robot or risk vacuuming with a significantly reduced performance. The capacity of the dust container determines how often users have to empty the container. Consumers should pay attention to the corresponding information on the device, in the product description or in the app of the robot vacuum cleaner.

App: Most robot hoovers are supported by an app that consumers can download for free on their smartphone. The smartphone then serves as a kind of remote control for controlling the model. For this, however, an Internet connection via WiFi is required in order to send the wireless signals from the smartphone to the vacuum cleaner robot.

Battery: Consumers should pay attention to the type and capacity of the built-in battery when buying a vacuum cleaner robot. The battery life and the operating range of the device are of interest. Models from brand providers such as iRobot usually offer a battery life of 100 to 150 minutes, which should be enough for cleaning many rooms. In the case of low running times, consumers should consider the size of their room and make sure that the robot vacuum cleaner automatically returns to the charging station when the battery level is low.

Cleaning: There are both vacuum cleaner robots that only support classic dry cleaning and models that also offer a wet or mopping function. Combi devices are practical, but often cannot offer the same performance in one area as vacuum cleaners specializing in these areas. When choosing a robot vacuum cleaner, consumers should pay attention to whether they need the extended functions with regard to cleaning or whether they are already adequately served by a cheaper device without a mopping function.

Volume: Robot vacuum cleaners are equipped with a motor that generates a noticeable level of noise. This must not be too loud, so that consumers can concentrate on other things in addition to cleaning or no annoyed neighbors knock on the front door. Most models have a noise emission between 60 and 70 decibels, which corresponds roughly to the volume of a running tap or a television at room volume.

Smart functions: The intelligent features that vacuum cleaner robots from the upper price range have, include additional sensors and various automatic functions. These should independently recognize whether a door threshold is approaching or a staircase has to be overcome. Other practical features of a vacuum cleaner robot are control via voice commands and a remote control supplied, if no app is available.

Height: The height of the robot vacuum cleaner plays a crucial role, as the device should also clean under furniture such as a sofa or armchair. Consumers should measure the height of their furniture individually in order to avoid a bad purchase. Most models have a height in the range of 7 to 9 centimeters, which usually fits under normal furniture in an apartment.

Brushing: A robot vacuum cleaner is a commodity that consumers have to wait for over time. The brushes of a robot vacuum cleaner should be replaced at regular intervals, as depending on the model, there are more or less hair in them, which can significantly impair the cleaning performance. Consumers should keep in mind that the accessories and wear parts required add additional costs.

Do robot vacuum cleaners work on carpets or hardwood floors?

Yes, most robotic vacuum cleaners can clean carpets as well as hard floors, but almost all models are better at cleaning one or the other material. High-end vacuum robots can quickly detect surface changes and increase performance when a carpet is detected and throttle again when the device drives over hardwood. Models in the lower price range often have problems cleaning carpets because they require very high performance. Inexpensive combination devices that can both vacuum and mop also often have problems with both tasks.

If you are looking for a robot for classic wooden floors, you can fall back on an inexpensive model, as even animal hair or stubborn dust can be removed on these surfaces. If you have floors made of vinyl or tiles, you should use a high-quality mopping robot that has been specially developed for these surfaces.

Which is the best robot vacuum cleaner?

The answer to this question depends on the consumer’s demands on a robot vacuum cleaner. While consumer A is looking for a combination device with a wiping and suction function, consumer B is interested in a high-quality model with sufficient performance for carpets. That is why it is important that those interested in buying a vacuum robot are clear about their own requirements for the device. You can then take a look at the product descriptions above on the website and choose your personal test winner.

Why are vacuum cleaner robots round?

The round shape predominates in the vacuum cleaner robot comparison. Numerous manufacturers rely on this aesthetic form, even if angular vacuum robots usually get better in the corners. There are usually no functional differences, but according to many manufacturers, the sensors and motors can be accommodated better in the round shape.

What is the price of a robot vacuum cleaner?

A general answer to this question is difficult. There are now cheap models at discount stores, but most of them cannot keep up with the performance and functionality of the leading models. If the price of the vacuum cleaner robot is three-digit, there are the tried and tested basic functions to recognize obstacles, avoid falls and ensure effective room cleaning. In the upper price segment, the differences between the robot vacuums are often a matter of personal taste.

What can a robot vacuum cleaner do?

A good robotic vacuum cleaner can – regardless of the price – clean hard floors and short pile carpets alike. Optionally, there is also a wiping function. The cleaning aids often reach their limits with deep pile carpets. Normal handheld vacuum cleaners can often achieve better cleaning results here.

Which robot vacuum cleaner is suitable for allergy sufferers?

Anyone who struggles with allergies to dust and dirt should rely on a vacuum cleaner robot with a HEPA or at least EPA filter. These are special fine particle filters that pull the most important allergens out of the air. In this way the robot leaves the room with better ambient air.

Which robot vacuum is suitable for pet owners?

If the robot vacuum cleaner combines special roller brushes, it can reliably pick up animal hair. Those who keep pets should clean the floor every day, otherwise large amounts of short and long animal hair will quickly collect. The result: pet owners have bacteria and vermin in their home. The robot reliably picks up small and large amounts of dirt with its powerful roller brushes.

How long do vacuum cleaner robots last?

The manufacturer’s guarantees provide an initial indication. Some brands have a warranty of 5 years for certain components. The purchase of a robot vacuum should be planned for the next 5 to 7 years. The reviews of other customers on the internet provide information on the service life.

Where should I set up the charging station for the robot vacuum cleaner?

The charging station should be in the best possible place in the apartment from which all rooms and rooms can be accessed. Most consumers opt for the hallway, as this is how they set up the vacuum robot as discreetly as possible.

What is a virtual wall?

The robot vacuum cleaner should not clean the floor in every room. In this case, a virtual wall can be installed using magnetic tape. Consumers should take a look at the product description before buying, because a virtual wall is not compatible with every vacuum cleaner robot.

Which vacuum cleaner robots can I use for deep pile carpets?

Most robotic vacuum cleaners do not get along well with a deep pile carpet because the suction power is simply not sufficient. Only a few models manage to thoroughly clean deep-pile carpets – these are mostly in the upper price segment and for many consumers are not affordable.

Which vacuum cleaner robot overcomes doorsteps?

Most robotic vacuum cleaners get over door sills up to a height of 1.5 to 2 centimeters without any problems. Thanks to the sensors, they recognize the increase and can usually overcome it with ease.

4.7/5 - (6 votes)

Last product update on 2022-06-28 | Source: Amazon Affiliate