For years, robot vacuums have had an unavoidable weakness: They’re only as useful as the places they actually reach. Most standard robot vacuums are close to four inches tall, so this model is relatively slender. Suction Power Rivals Other ModelsMany of the robot vacuums we recommend fall somewhere between 4,000 and 12,000 pascals of suction power. But I’d consider this a high-end or premium model, so I expect suction power to perform better than other versions. Features Feel User-FocusedThe Roborock companion app is the most surefire way to get the most out of your robot vacuum.