Dyson was pretty late to the robot-vacuum party, but its entry was (and remains) one of the strongest in the category. It doesn't have a lot of bells and whistles like a self-emptying base or mopping ...

While we've tested all kinds of the best vacuums, including premium splurge models that retail for nearly $2,000, we've found that $100 to $200 can get you a solid and reliable vacuum. Suction power ...