Not so with iRobot’s new Roomba i7+ ($950), which empties itself. While the device is powering up, a separate vacuum inside its base charger sucks the dirt and dust from the Roomba’s innards ...

One of our favourite robot vacuums is the iRobot Roomba, with all three of the i7+, s9+, and j7+ robot vacuum models being our top-rated from the few we've tested in the series, scoring 4.5 and 5 ...