iRobot Roomba 650 Robotic Vacuum
The iRobot Roomba 650 is very similar to the Roomba 630, but with the addition of a scheduling feature. The 3-stage cleaning system combines a side brush for cleaning along walls, counter-rotating brushes which pick up debris and strong suction pulls dirt off the brushes and into the bin. Although robot vacuums can't hold as much as a larger vacuum, the Roomba 650 bin generally doesn't fill up too quickly unless it’s vacuuming an especially dirty area.
The unit uses an acoustic sensor to detect dirtier areas allowing it to spend more time where it's needed most. A single Virtual Wall is included to keep the vacuum out of areas where you don't want it to be, while a scheduling feature has the unit vacuum at preset times even if you're not around. The 650 is a great choice for those who want a relatively affordable Roomba vacuum without sacrificing the scheduled cleaning feature.