Last updated: September 5, 2021

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Performing cleaning tasks at home is not always pleasant. Or it may be that you simply don't have time. Vacuum robots have been among us for decades, but technology has managed to democratize their access. They are devices that are distinguished by two basic characteristics: their autonomy and their great suction power.

With technological advances, some robot vacuum cleaners even scrub after vacuuming the entire house. The use of sensors allows the devices to detect obstacles and recharge themselves when the battery runs out. This is truly a luxury that is now at our fingertips, as we will see throughout this article.

Key Facts

  • The current vacuum robots stand out for their great power of autonomy and their proven high suction capacity.
  • The newest models incorporate very advanced technological features and can, among other functions, be controlled through a mobile application.
  • The most modern versions of these appliances allow you to program the appliance from anywhere and include the possibility of scrubbing the floor.
  • The product has become indispensable for pet owners and for cleaning large areas.

Ranking: The Best Robot Vacuums

Below, we show the best automatic cleaning devices that you can find on the market today. Differences in price and performance are what will determine the best choice for your needs. Analyze the characteristics of each one and choose the most suitable for your home or that of your family. You will not regret acquiring one of these amazing machines.

Shopping Guide: Everything You Need to Know About Robot Vacuum Cleaners

There are many types of robot vacuum cleaners available on the market today. Before deciding on which one to buy, you should analyze their characteristics to suit your needs. A small apartment is not the same as a large family home. Next, we will show you the usual questions from potential robot vacuum users so that you have a “mini-guide” for your purchase.

Robot vacuum cleaning house

At the moment, no vacuum robot manages to climb stairs. But, many models do detect obstacles and change their direction.
(Source: Dolgachov: 40250520/

What exactly is a robot vacuum?

It is an appliance that vacuums the floor one inch at a time without you having to move a finger. Thanks to technology, with the 21st century, these devices incorporate sensors that facilitate cleaning. They are able to rotate 360º, detect obstacles and change direction, in addition to being programmable. They stand out for their autonomy and great suction power.

What is the difference between a robot vacuum and a conventional vaccum?

Fundamentally, with most robot vacuum cleaners it is necessary to empty the containers after each use. On the other hand, with the conventional vacuum cleaner, it is enough to empty the bag when it is full of dust. Vacuum robots do not usually incorporate waste bags, but only a small container. This contianer should be cleaned frequently.

Why buy a robot vacuum cleaner?

First, because it makes your life easier. In addition, if you own pets, you will save a lot of time. If your house adapts well to a robot vacuum cleaner, you will gain back 80 percent of the time you spend vacuuming.

It is important that the home is compatible with the robot. Otherwise, you will have to spend time “watching over it.”

Are vacuum robots suitable for thorough cleaning?

It depends on the model. Thorough cleaning must still be done by hand if the robot is not the most modern version. To achieve optimal performance, it is useful to adapt your rooms to the robot and remove obstacles. However, the robot is really helpful smooth floors (parquet, tiles) and there are already models capable of thoroughly cleaning a room.

How is a robot vacuum designed to be effective?

The bigger the robot, the harder it is to reach into corners. Its size is important or it will not even be able to vacuum under a chair. Therefore, the lower and smaller the robot, the easier it will be to pass through narrow spaces. Manufacturers are still looking for ways to integrate technology and mechanics into a smaller device.

Zoom in robot vacuum

There are models specifically designed for large areas, such as offices or workshops, among others.
(Source: Chernobrivets: 96845929/

What technical differences are there between the different types of vacuum robots?

The biggest difference between them lies in their movement. Some move randomly through varioousrooms, but others make systematic rounds. Depending on the technological advancement, there are also devices that can be controlled with a remote control. Let's see in the following table what their specific differences are:

Random device Technologically advanced devices Next generation devices
They use contact and ultrasound sensors to raise and lower for different heights of the room . They rely on cameras or laser technology to regularly scan the ceiling and create a plan of the room to be cleaned. They use 360 degree laser navigation to navigate a house and do their job effectively.

How long does the battery of a robot vacuum cleaner last?

Due to the different models and prices, there is a big variation in battery life among robot vacuums. Most models have an autonomy that ranges between 60 and 90 minutes. Speaking of battery life, there are some factors about robot vacuum battery life that need clarification, such as the following:

  • A shorter battery life duration does not mean that the model is cheaper or offers worse results.
  • There are very expensive models that only allow 45 minutes of autonomy. Others offer 150 minutes and are cheaper.
  • They are usually destined for industries and their execution time can reach 200 minutes.

How many square meters does a robot vacuum cleaner cover?

Vacuum robots are usually designed for apartments and cover at least 60 square meters (m²). There are many models that reach more than 100 m². For large, usually industrial spaces, the robot covers between 300 and 500 m². The surface covering the device is important.

We should take into account some additional aspects:

  • The longer the battery lasts, the more surface the robot can cover.
  • If the model is very tall, the robot will not be able to clean under chairs and sofas.
  • Therefore, consider the height of the device and the measurements of your furniture.

Robot vacuum in living room

Robots with a large capacity are suitable for large surfaces, such as dens.
(Source: Baloon111: 73043342/

Are vacuum robots usually very loud?

The quietest models have a volume of 60 decibels. On the other hand, the loudest usually reach 90 decibels. Generally, robots with bags are placed at 60 decibels, the volume of a normal conversation. In comparison, the noise level of bagless vacuum robots is between 60 and 90 decibels.

What are the features of vacuum robots?

Unlike the normal vacuum cleaner, the robot offers a series of functions that serve to achieve optimum performance. Many of the models offered include extras, such as wet cleaning or special filters for allergy sufferers. Let's see below the key aspects of a robot vacuum cleaner:

Space Detection

Resumidamente, los robots pueden pasar por el área seleccionada de forma aleatoria o sistemática. La elección de una u otra fórmula influye en el precio, así como en los resultados. Sus diferencias fundamentales son:

  • Random or non-systematic detection assumes that the model works with contact or ultrasonic sensors. In some areas it won't work or the robot goes through the same place several times.
  • Systematic space detection works much better. The robots create a map of the room with cameras and lasers. Thus, they scan the roof every time it is used and are more efficient. Each of the two systems has advantages and disadvantages:
Advantages Disadvantages
Non-systematic or random detection These models are generally cheaper It may be necessary to improve the result manually
Systematic Detection Electricity savings and more uniform result More expensive and do not absorb persistent dirt

Brushes and Rollers

Most vacuum robots incorporate a brush-like accessory. These can be placed on the front of the device and/or laterally. The robot uses them to direct all dirt to the suction area. Especially, the side brushes are used for the corners of the rooms. For better performance:

  • Clean combs and hair accessories regularly.
  • The brushes must be replaced due to their high wear.
  • The brushes of some models can be removed, which makes cleaning easier.
  • Some models have rollers instead of brushes.
  • Generally, they are rubber and easier to clean, without losing suction power. However, they criticize themselves because they do not aspire as well as the models with brushes.


Many users choose programmable models because they allow tasks to be done without the user being at home. The timer function makes it easy to specify when and for how long the cleaning should last. The main disadvantage of this type of model is that it can get stuck. If this occurs, the device will remain in one place until its position is manually changed.

Cleaning Function

If you need a robot that also scrubs, it is important to acquire a specific model. They have a microfiber cloth that is moistened without interruption by a tank inside the unit. Other models even have a split tank that separates dirty water from clean water. They are more hygienic and can be emptied separately.


Allergy sufferers can get models with HEPA filters to retain dust particles. This function usually relieves allergies. The filter is cleaned and replaced by hand. If it cannot be removed, cleaning is done directly on the robot. There are models where the old filter sits in a housing that can be removed separately.

Although most models now have a HEPA or similar type filter, it is still necessary to pay attention to whether it is available, in the model description.

What special features do vacuum robots have?

In addition to the functions that have already been mentioned, there are some other features that may be relevant to you. Not all models are equipped with these functions. Therefore, if you like something, you must ensure that the chosen product includes those of these features that are "must-have" features to you:

Equipment Description
Remote Control It allows you to operate directly from the sofa to send instructions. It is recommended if the device has missed an area and it is necessary to go over it again.
Controllable via Apps With an application, you can check if the robotic vacuum has already completed its activity. Also if you may have gotten stuck in a place and now you need help. In addition, you can control the application remotely if you are traveling.
Charging Station Many models have a battery charging station. Once the work is finished, or when the battery runs out, the devices return to their base and charge independently.

What is usually the capacity of the vacuum robot containers?

Most devices can contain between 4 and 12 ounces of dust and dirt. Occasionally, there are models that can accommodate up to 36 ounces. A higher capacity does not mean a higher price. There are different models, with different capacities in all price categories. In addition, keep in mind that:

  • If the container is full, the robot will indicate this by means of an LED light or an audible signal.
  • Most large capacity models are specifically designed for very wide environments.

What types of vacuum robots exist and which one is right for you?

In principle, two basic types of robot vacuums can be distinguished from the wide range of models on the market. Robots with a bag and robots without a bag. Most of the current robot vacuum cleaners are without a bag, but you should not forget about the bot robots. They can be especially suitable for you. In any case, we present advantages and disadvantages of both:

Robot vacuums with bags Robot vacuums with without bags
Cost The purchase of spare parts is expensive Daily and economical, long-term emptying savings
Efficiency It is efficient and saves time because it does not require additional cleaning Cleaning is slower and requires cleaning of the device
Capacity Less capacity Large capacity to hold larger quantities of dirt and dust
Speed The cleaning is faster The cleaning is slower

What type of robot vacuum cleaner is suitable for each home?

Most vacuum devices are suitable for smooth floors. This type of floor is usually hardwood, laminate and tile. In this case it is not necessary to look for a specific function. Yet it is important to analyze the characteristics of the robot if you have specific needs, as we will see below:

  • Robots can effortlessly get rid of dust and dirt on laminate floors, parquet or tiles.
  • If you also want to scrub the floor from time to time you must choose a robot that incorporates this feature.
  • If you have long-haired carpets, there aren't many robots in the market that can handle the situation. Even if they do, you will need to finish cleaning by hand or with a vacuum cleaner.
  • Short-haired carpets are no longer a problem for modern vacuum robots. Despite this, some less advanced devices may get caught in the transition from floor to carpet.
  • For the ideal cleaning of carpets and pet hair there are specific robots. Generally, they use rollers and special brushes for animals.
  • Current robots usually incorporate a HEPA or similar filter, which is now a common feature. However, if you are allergic to dust you should investigate the product description.

Shopping Criteria

Given the wide range of robot vacuum models, it is necessary to compare different models before you make a final purchase. In this section we will show you a series of important features you can consider before deciding on a particular product. With these key factors, you can compare and finally select the best robot for your needs.


Height is undoubtedly one of the most important criteria for the purchase of a robot vacuum cleaner. The device must be lower than the furniture in your home. Thus, it can clean underneath them without problem. Therefore, you don't just have to pay attention to the dimensions of the robot vacuum cleaner. You must also measure your own furniture.

A little tip: all manufacturers specify the height of their robot vacuum cleaners, but generally the sensor, which is often found on the top of the device, is not calculated. Analyze all the features of the device thoroughly.


The weight of a robot vacuum cleaner is not very important. Generally, it should not be lifted. But if the product load is unusually high it is better to pay attention to lighter models. If the device is intended for hard floors (such as tile, floor or parquet), the weight is not an important factor.


A larger capacity is partly reflected in the price, but varies from manufacturer to manufacturer. The height of the device is also influenced by the capacity. The higher the model, the more likely the container can hold larger quantities. In general, a good robot vacuum can hold at least 4 ounces.

Sound Volume

Like all appliances, vacuum robots generate a certain level of noise. Depending on the model of the device, it is usually between 60 and 90 decibels. In the following table you can see what consequences exactly a specific noise level can have. Let's see what the decibel level is comparable:

Decibels Comparable with Effects
40 A quiet Apartment Concentration disorder threshold, but harmless
70 A hair dryer Mostly safe, but increases the risk of hearing disorders
80 Heavy traffic/drills
90 A jack hammer Prolonged and unpleasant exposure threatens hearing damage
100 A circular saw

Battery Life

Most models are designed to work constantly for 45 minutes. The most common autonomy time is between 90 and 120 minutes. We recommend that you choose a model with a long service life. That is, between 90 and 100 minutes of charging or a model that automatically recharges when it runs out of battery.

Battery Charging Time

Most vacuum robots have a relatively high load type. There are models that take 3 to 5 hours, depending on the type of battery. We recommend that you charge the charging time together with the battery's autonomy. If this is short and the loading time is very long, the product may not be profitable for you.

Design and Color

Design plays an important role for many people. The appliance must conform to the environment because it is a visible element. Therefore, there is a great variety of models, both in shape and color. Semicircular robots are especially suitable for the corners of a room. The color is also important.

Client Experience

A very important factor is customer reviews. You can find information that the manufacturer does not answer in its users' manual or marketing materials. Thus, you will know if a device can go over carpets, for example, or if the manufacturer also sells spare parts. Analyzing customer experiences helps you simplify your purchase decision.


Smart robot vacuum cleaners are very helpful appliances in a home. Although they have been present among us for decades, only now do they have affordable prices for any pocket. Moreover, we assure you that your life will take a 360º turn when you see what they are capable of doing.

Ideal for absorbing animal hair, vacuum robots are perfect as home helpers. They have side brushes and purifying filters to retain dust and allergens. The most modern are programmable and you can control them through the mobile. All at a reasonable price. Do not miss them!

(Featured image source: Photochicken: 52423566/