✪ What is a robot vacuum cleaner? ✪

A robot vacuum cleaner, also known as robovac, is a kind of smart household appliance, which can automatically complete the floor cleaning task via manual operation or remote control.

By virtue of the vacuum and side brush, the robot vacuum cleaner can absorb the ground debris into its dust box.

In addition to the basic cleaning, some vacuum cleaners also offer mopping or UV sterilization function for further cleaning, and some even have security cameras, intercom systems and other features.  

✪ What are the key parameters for a robot vacuum cleaner? ✪

These top 5 key parameters you should consider when buying a robot vacuum cleaner:

#1. Runtime or battery capacity

The Runtime or battery capacity is a key spec you should note when choosing a robot vacuum cleaner, especially for large house owners. As the larger battery capacity or longer runtime can avoid frequent recharge due to the lack of power.

# 2. Cleaning efficiency

The cleaning efficiency refers to the area that a robot vacuum cleaner can clean per hour. The main factor affecting the cleaning efficiency is the processor. A good processor can calculate the best and fastest route for cleaning each room and it doesn’t miss an inch. Therefore, the cleaning efficiency is sometimes more important than the battery capacity.

# 3. Suction strength

The large suction can make sure that all kinds of debris on the floor are sucked away by the vacuum cleaner, so the cleaning result will be more satisfying.

# 4. Working noise

Don’t overlook the working noise of the robot vacuum cleaner, as the large noise may disturb your work or sleep. Usually, you’d better choose a robot vacuum cleaner with its working noise less than 65dB.

# 5. Remote control

If a robot vacuum cleaner supports remote control function, then you can easily control it via APP. In addition, it’s better if the vacuum cleaner also supports the voice control, which means that it can work with smart speakers like Amazon Alexa or Google home.

✪ What are the mapping methods of a robot vacuum cleaner? ✪

An intelligent robot vacuum cleaner can precisely build a map for the whole room. This will improve the cleaning efficiency and allows robot vacuum to localize itself within the map.Moreover, it's very convenient for users to manage the map and set zone cleaning or selected cleaning mode. Presently, there are mainly 4 mapping methods for robot vacuum cleaners and they are:

# 1 Visual SLAM navigation

The visual SLAM is a navigation method that uses a camera to construct a map and plot a navigation path. It has an excellent CPU computing capacity and offers up to 20 external sensors.

Advantages: low cost and rich image information

Disadvantages: slower scanning speed

# 2 Lidar-based SLAM navigation

The Lidar-based SLAM uses a laser sensor to build a map for the room, it offers higher accuracy than the visual SLAM.

Advantages: higher measuring accuracy and speed, wider scanning range (it usually can cover a range of more than 270 degrees in a plane).

Disadvantages: higher cost than visual SLAM 

# 3 Gyroscope navigation

The Gyroscope navigation is a navigation method that uses rotation sensors (Gyroscopes) to continually measure or maintain the location, orientation and velocity.

# 4 Random navigation

The random navigation is an original navigation method and it only adopts several cliff sensors, which makes the robot vacuum cleaner work randomly without any routine plan. The random navigation may cause the unit to miss spots when cleaning or be unable to locate its base station to recharge, and did not provide the user a history of which spaces were cleaned.

✪ ​What's an SLAM (Lidar SLAM) robot vacuum cleaner? ✪

The SLAM (Lidar SLAM) robot vacuum cleaner refers to a robot vacuum cleaner that adopts Lidar-based SLAM navigation system.

It builds a map through measuring the distance to an object by illuminating the object with multiple transceivers. Each transceiver quickly emits pulsed light, and measures the reflected pulses to determine position and distance. Compared to the visual SLAM navigation, the Lidar-based SLAM navigation has a higher accuracy and faster scanning speed.  

✪ Which is the best robot vacuum cleaner for multiple rooms? ✪

Cleaning multiple rooms usually spend your much time and energy. Having a smart vacuum cleaner which can plan the cleaning route automatically is a good housework assistant for you. Apart form the intelligent mapping and rout planing. Longer working time and large dust tank are also should be taken into consider.

Lenovo X1: With the LDS lidar laser navigation, SLAM algorithm and high precision map, Lenovo X1 can free up your hand to do other things. 110 minutes working time and 585ml dusk box capacity are suitable for 300 square meters house.

✪ Which is the best robot vacuum cleaner for pet hair? ✪ 

The robot vacuum cleaner for animal hair should have strong suction power to pick up dog and cat hair. In addition, offering a special brush or even a brushless cleaning system is facilitate for the maintenance of the vacuum cleaner. And you don’t worry that the pet hair will be twined in.

Roborock S50: With the strongest suction to 2000pa,it can easily solve the long hair, large particles and small dust, cat and dog hair in the home. And equipped with Laser Distance Sensor, Roborock S50 can immediate view the world around it in 360 degree and navigate automatically.

✪ Which is the best robot vacuum cleaner for hardwood floors? ✪

Hardwood floors is differ from tile floors and the carpet. The vacuum cleaner should clean this flooring without scratching the surface and spoiling the look. Rubberized brushes are more than enough for this type of flooring when combined with adequate suction.

Roborock S6: Roborock S6 is equipped with detachable brush which is quality by DuPont bristles and easily to remove winding hair. It also comes with a mop like the S5, it is very useful aside from light surface cleaning and be able to remove dried, caked-on dirt like a dedicated robot mop.

✪ Which is the best robot vacuum cleaner for carpet? ✪

It is difficult to clean the deeper pile carpets stuffed with pet hair and dander. So what factor we should main consider when buying vacuum cleaner is the strong suction and high-efficiency filter. As they can sucked not only the large debris easily and also the tiniest particles and pathogens.

360 S7: 360 S7 has HEPA-rated filtration witch sees off even the tiniest of airborne contaminants so the air your breathe is clear and clean. And all dust and debris is vigorously loosened before being sucked away form sight at the rate of 2000Pa of suction.

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✪ 5 best robot vacuum deals for Black Friday 2019 ✪

Hey Gearbest customers! If you want to buy a good robot vacuum cleaner, but have been putting it off because of the price. Then do grab this Black Friday 2019 sale at Gearbest, as all kinds of robot vacuum cleaners are getting a big discount in a limited time. Don’t know how to choose?

We have combed through the deals to pick up 5 best robot vacuum deals from top brands for your convenient choice. Just check the detailed specs table below.      

✪ Top 5 Best Robot Vacuums That Work with Amazon Alexa ✪

Like any other neat freak, you're beaten by the dirty floor. While you're sweeping/mopping the floor, you regret not buying a robot vacuum on Nov. 11! Just think about it!

If you've got a robot vacuum that works with Amazon Alexa, you can call it a day and collapse onto the couch after work, so tired, but you don't even need to turn on the smartphone to start the robot vacuum. Just talk to the Amazon Alexa, the connected robot vacuum will set about cleaning, and the floor in your house will be spotless in a while.

It will never be too late to get the best deals on Black Friday! Don't miss out on these 5 best-selling robot vacuums that support voice control via Amazon Alexa here.