Square vs Round vs Extendable: The Corner Cleaning War

Round robots have long dominated the market due to their efficient navigation in open spaces. However, their circular design inherently limits their ability to clean corners and edges effectively. Unlike square or extendable robots, round robots often leave behind debris in corners, as their side brushes can't reach into these tight spaces. This is particularly evident in homes with complex layouts and numerous corners, where dust and debris accumulate over time. Additionally, round robots may struggle with maneuverability in tight spaces, often requiring more passes to achieve the same level of cleanliness as their square or extendable counterparts.

The ECOVACS DEEBOT X2 Omni's square design is a bold departure from the traditional round shape. This design choice allows for improved edge and corner cleaning, as the robot can align more closely with walls and furniture. The square shape, combined with its 200mm wide main brush and side brush, ensures a more thorough cleaning coverage. However, the design can pose challenges in navigation, especially in tight or complex spaces where the robot may struggle with turns. Despite these challenges, the embedded Dual-Laser LiDAR sensor enhances its ability to map and navigate efficiently, compensating for some of the navigation difficulties inherent in the square design.

Dreame's L20 Ultra features the MopExtend technology, which physically extends the mop pad to clean within 2mm of edges and corners. This innovative approach addresses the limitations of traditional mopping systems, ensuring that even the most stubborn edge dirt is captured. The technology is complemented by a powerful 7,000 Pa Vormax™ suction system, which excels on carpets and hard floors alike. Additionally, the Dreame L20 Ultra's all-in-one base station automates the maintenance process by washing, drying, and refilling the robot, making it a comprehensive solution for busy households. Its AI-powered obstacle avoidance further ensures efficient cleaning without interruptions.

Shark's CleanEdge air blast technique is a unique approach to edge cleaning. Instead of relying solely on brushes, the Shark PowerDetect NeverTouch Pro uses a powerful air blast to dislodge dirt and debris from baseboards and edges. This method is particularly effective on hard floors, where debris can accumulate along the edges. Coupled with the PowerDetect sensors, the robot adjusts its cleaning behavior based on the floor type and dirt levels, ensuring optimal performance. The NeverTouch Pro Base further enhances convenience by automating emptying, refilling, and washing, making it a low-maintenance option for users who prefer less manual intervention.