That means it doesn’t miss many spots or waste much time recleaning the same areas, as our budget picks, or other low-end models that navigate semi-randomly, usually do. And it doesn’t get stuck on obstacles like thresholds or power cables often. Shag and other high-pile rugs may have too high a threshold irobot vacuum cleaner for the robot to pass over, or the fibers could clog the brush. Many Roombas will easily transition from carpeting to solid flooring such as hardwoods or tile; however, shoppers who have thicker carpet may want to choose options with higher suction, a larger dustbin, and a longer battery life.
Keep reading to learn about some of the key considerations when choosing a Roomba, and see our hands-on evaluation results later in this article. Most Roomba models are of a disk shape, measuring 338–353 millimetres (13.3–13.9 in) in diameter and 86–94 millimetres (3.4–3.7 in) high depending on the model. The S9 and S9+ robots are D-shaped rather than circular, with the flat part of the D at the front, and are narrower at 311 millimetres (12.2 in) wide. A large contact-sensing mechanical bumper is mounted on the front half of all models, with an omnidirectional infrared sensor at its top front center.
The early generation models were noted for using a random algorithm for achieving a total room coverage.A small vacuum empties into a removable dustbin, which has rotation brushes to aid collection. It has several sensors including a bumper that detects collision and an infrared sensor on top to respond to a “virtual wall”. Most robot vacuums are reliable when it comes to getting rid of standard household detritus, so you don’t have to worry about whether they can suck up lint, dirt, or hair. Since we test shark cordless all the robot vacuums in the same home environment, we check how full the dustbins get and whether the robot picks up obvious debris like pet hair and dust bunnies. Some of the most advanced robot vacuums, such as the iRobot Roomba j7+, feature a camera and artificial intelligence technology to automatically identify and avoid obstacles like shoes, toys, and even pet waste. Premium models may also function as a roving home security camera, letting you view live video of your home from wherever you are.
The Shark IQ Robot XL also stands out for its self-cleaning brushroll, which in our testing successfully prevented hair from getting wrapped around it, a common problem with many robot vacuums. Moreover, it delivered strong suction power, effectively cleaning dust, debris, and pet hair from hard flooring and carpet, and it never got stuck. It offers a number of useful smart features, including home mapping for targeted irobot vacuum cleaner room cleaning and virtual no-go zones. The Eufy RoboVac 11S and other Eufy bots whose model names begin with a number instead of a letter stand out as some of the quietest robot vacuums we’ve tested. They’re also some of the shortest, so they can fit beneath more pieces of furniture. Like the Roomba 694, the Eufy 11S is semi-random in its navigation, so it’s best for cleaning just a few rooms at a time.
Through the company’s Imprint Link technology, the iRobot Roomba i3 coordinates with the Braava Jet M6 robot mop so users can vacuum and then mop in sequence. When it’s running low on battery—after about 75 minutes of runtime—the Roomba will automatically recharge and then resume cleaning. There are several types of dust and debris collection bins for the 500 series models. The high-capacity sweeper bin does not include a vacuum, but has greater debris capacity. The AeroVac Bin directs suction airflow through the main brushes instead of using a squeegee, which is thought to keep the brushes cleaner. The Roombas’ speed is also increased, which is possible in part because of the sensors to avoid bumping into obstacles too hard.