What Makes a Robot Vacuum Cleaner Best?

The top robot vacuums come with a powerful motors and a set of rollers or bristles that are durable. They also have large dustbins and an extended battery life.

Certain models map homes with smart mapping, and can stop to recharge and then pick up cleaning where they left off. They can even define no-go zones, and even identify different surfaces.

Object Avoidance

Object detection is a key feature for robot vacuums since it allows them avoid getting into small items like socks, toys, cords, or shoes that aren't on the floor, but instead on furniture. The machines use an inbuilt camera to detect objects that are listed in an AI database, and then teach the vacuum to avoid them. The Eufy S1 Pro uses a combination of sensors, including 3D Time of Flight, which emits light pulses into the room to gauge distance and the depth of objects, and 3D Structured Light, which beams a pattern of light onto the room and analyzes the light distortion to create a map to avoid obstacles.

A new addition to the obstacle avoidance arsenal is artificial intelligence and visual interpretation, which enables robots to better identify and understand what they're encountering. This software uses two cameras to view the world and analyze it in real-time. The ECOVACS DEEBOT uses this software to detect up to 30 kinds of objects such as cables, shoes, and pet poop.

Certain models also use LiDAR to navigate. The technology emits laser beams and records the time it takes for them to bounce back off the surrounding surfaces to create a live, 3D map of the surrounding. This is useful in the detection of furniture, walls and even stairs. It might not be effective in low light or with transparent or reflective objects.

Regardless of which sensor or cameras are utilized, a good battery life is important to ensure that your robot can complete the entire house without needing to return to its dock to recharge. Choose an option that runs for at least 80 minutes or more, based on the size of your living area.

Bases that Self-Empty

Some robot vacuum cleaners have self-emptying bases. This could reduce the frequency that you have to empty your trash. They are considered premium and add to the price of a robotic vacuum cleaner.

The most effective robots have bases that hold either a bin, or a removable dustbin. It is possible to open it and empty it when it is full. This will save you time by reducing the amount of time you spend worrying about when to empty a dustbin.

Self-emptying bases are found on all the robots in our review, except for the best robot vacuum cleaner basic Roomba I3+, which does not have one. It's a pity, since the robot is a very strong performer. It got the highest mapping performance of all the robots we tested, and it has excellent navigation capabilities. It has a great mowing ability and a docking system that allows you to empty the water tank automatically if it is needed.

It lacks iRobot’s advanced obstacle avoidance technology and digital keep-out zones, but it can become tangled in rugs and cables, and is unable to see rogue shoelaces or socks. That said, it's an excellent option for a small, well-maintained home.

Other strengths include its aforementioned navigation technology, which includes bump sensors and drop sensors, and its ability to map out your entire house using cameras and laser. It's also easy to set up, offers many settings and modes, and provides an excellent performance in mowing and vacuuming. Another perk is its smart-home connectivity which enables it to work with voice commands using Amazon Alexa and Google Assistant. This can make it simpler to use if you have multiple smartphones or tablets and don't want to pick up a remote vacuum cleaner.

App Controls

Some robots are Wi-Fi compatible, allowing users to control them from your smartphone or tablet. This convenience is especially helpful in homes with a lot of floors, in which you may need to walk down a flight of stairs before the robot can get to the bottom. This will eliminate the need for an additional long cord, allowing you to move your furniture without worrying about the robot getting tangled in it or running out power while cleaning.

The app functions as central control point for monitoring and scheduling tasks. The app allows you to customize your robot cleaner's power, cleaning modes and the water level settings. This feature is particularly beneficial in homes with multiple floor types -- for example, carpet and tile because you can set the robot to clean every room with the appropriate power and mode.

Certain models come with a built-in camera that sends live video directly to the application. These models are a great choice for pet owners and people with young children who wish to monitor the robot while it's working. Some smart robots also have sensors that can detect when they've reached the edge of a room and then return to their base to dock. This prevents them from overrunning the space and makes sure that they've cleaned the surfaces in your home.

Some models can empty the dustbin on their own and wash their mop heads and blow dry them between cleaning sessions. This reduces the necessity for manual maintenance and the robot cleaner will function better for a longer time. You can also choose one with a longer battery life that will allow you to avoid the hassles of mid-cleaning recharge.

Sensors

Many robot vacuums are equipped with sensors that allow them to navigate through your home. They can be used on carpets, area rugs and hard floors such as tile and wood. They're not an alternative to an upright or full-size canister cleaner, but provide superior suction and a great way to keep your floor washing robot clean in between deep cleanings.

Sensors enable the robot to navigate through your home by finding obstacles and avoiding falling on the stairs. You can also create virtual and physical "no go" zones using boundary strips or a virtual walls (like the ones used by Eufy) to stop the robot from entering certain areas within your home. Some robots also come with cliff sensors, which warn you when the robot is getting close to crossing an edge.

The type of navigation system the robot utilizes will depend on your budget and the layout of your home. Some of the most advanced robotic vacuums utilize LiDAR sensors to scan and map areas that ensure accurate navigation. These systems are costly, but provide the best inexpensive robot vacuum results. Models that are budget-friendly with basic navigation bumps are less precise and could miss certain places. They're good for avoiding major obstacles, but they could still be unable to detect dirt in crevices or around baseboards.

Pick a model that has an extensive dust bin as well as long battery life. There are models that can dock and recharge and then resume where they were when they left. This can save time. In addition to navigation and cleaning, you can get the most out of your robot vacuum by prepping for each cleaning session. Check that power cords and toys are removed and out of the path of the robot, and empty the bin every cleaning. Also, wipe down the sensors and charging ports to keep the robot healthy.

Navigation

The most effective robot vacuums employ mapping technology to create a digital map of your home during the initial cleaning session. It allows them to recognize textures such as carpets or hard floors and ensures that all areas are clean. Mapping also saves your robot from re-cleaning the same areas which increases efficiency and reduces battery usage. A lot of high-end models allow you to save a map for future use. This is great for large homes.

The majority of robotic vacuums come with some form of obstacle avoidance, which keeps them from crashing into cords, shoes, or socks. However, these sensors do not always detect smaller objects. Some time ago, manufacturers began adding additional sensors to their robots, which allowed them to detect and avoid household items that standard sensor systems couldn't. These include cliff sensors as well as wall sensors that work by reflecting infrared beams of light off surfaces to calculate distances.

Some sensors are built directly into the robot's base, while others need to be purchased separately. These sensors assist the best robot vacuum to move safely and avoid falling off stairs, and stay away from clutter. Certain models have anti-drop sensors which prevent the robot from colliding with furniture and walls.

LiDAR mapping is the latest and most advanced navigation technology and it's a feature that you should look for in the robot vacuum. This kind of system utilizes an ejector-type laser that is mounted on the top of the robot in order to map your home. By bounced infrared beams off your walls and furniture, it can sense the layout of your room. This information can help to plan efficient routes and also clean your home.