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An independent consumer guide to smart homes.

Roborock Qrevo S VS iRobot Roomba S9 Plus

Roborock Qrevo S

4.8

iRobot Roomba S9 Plus

3.3
63dB
Noise level
65-75db
180min
Operating time
120min
300sqm
Maximum surface area
370 estimated
7000Pa
Suction power
2500Pa
20mm
Threshold height
15mm
350ml
Dust container
400ml

Roborock Qrevo S

Roborock Qrevo S is a further development of last year's hit Qrevo model and offers a range of improvements that make it even more versatile and powerful. One of the most prominent updates is the increased suction power, which allows the Qrevo S to efficiently handle both large and small debris on different types of flooring. The dust container has also been given a larger capacity, which means it can collect more dirt before it needs to be emptied, minimizing maintenance for the user.

Another important improvement is the introduction of hot air drying, which effectively dries the mops after cleaning, preventing unwanted odors and mold formation. The 30% faster charge allows the Qrevo S to be quickly ready for the next cleaning session, which is especially useful in larger homes or if you have many rooms to clean. The removable base is a smart novelty that facilitates cleaning and maintenance, while the automatic tank filling to the base station minimizes maintenance for the lazy.

The navigation system in the Qrevo S is both precise and reliable, allowing it to maneuver smoothly around obstacles and furniture, while mapping your home to optimize the cleaning route. The integrated Wi-Fi connection and app control give you full control over cleaning right from your smartphone, where you can easily schedule cleaning times, adjust settings and follow the vacuum cleaner's progress in real time.

With a powerful 5,200 mAh battery, the Qrevo S offers up to 180 minutes of operating time, which is more than enough to cover large areas without having to return to the base station to recharge. In addition, it has dual rotating mops that spin at 200 revolutions per minute to remove even the most stubborn stains, and these mops can be automatically lifted when the vacuum cleaner detects carpets, to avoid wetting them.

In summary, the Roborock Qrevo S offers an excellent balance between advanced features and ease of use, making it an attractive option for anyone looking to invest in an affordable robot vacuum cleaner. Given its improved performance, expanded functionality and competitive price, Qrevo S is a strong choice for anyone looking for a reliable and smart solution to keep their home clean and fresh.

iRobot Roomba S9 Plus

Compared to its predecessor, the iRobot Roomba i7+, the Roomba S9+ has undergone several significant improvements, including a new D-shaped design that allows it to access tight corners and hard-to-reach places more efficiently. A previous problem with Roomba models was that the brushes spun too quickly, often resulting in the dirt spreading instead of collecting up. On the Roomba S9+, this problem has been solved by having the brushes rotate more slowly, increasing its ability to efficiently collect dirt and debris.

Another noticeable improvement is the dual brush on the underside of the Roomba S9+, which has been moved forward and widened. This causes fewer hairs to get stuck and makes it more effective at cleaning even thick carpets.

The Roomba S9+ uses a navigation technology called VSLAM (Visual Simultaneous Localization and Mapping) instead of LIDAR, which is used by many other competing robotic vacuum cleaners. VSLAM uses a built-in camera to map and navigate your home. One advantage of VSLAM is its ability to handle situations where obstacles have fabric hanging down to the floor, which LIDAR can sometimes have difficulty detecting. However, VSLAM is dependent on the lighting conditions in your home, and it may be less effective in dark environments. A combination of both technologies, VSLAM and LIDAR, would perhaps have been an optimal solution.

It is also worth mentioning that iRobot, the manufacturer of the Roomba, is now owned by the tech giant Amazon, which acquired the company for about $17 billion. This acquisition has strengthened Amazon's presence in the smart home market and positioned them as a leading player in the sector.