iRobot has programmed three different kind of cleaning modes to be used in various situations. Clean mode tells the robot to thoroughly clean one room before returning to its charging station. Max mode lets Roomba clean as far and wide as it can until the batteries run out until there is just enough for the Roomba to head back to the charging station. Finally the Spot setting kicks in when the Roomba detects a part of the flooring that requires special attention and runs over the same small area until it's clean.
iRobot claims its surface transitioning technology detects the kind of floor the Roomba is currently on (tile, carpet, etc) and adjusts suctioning power accordingly. This model does not have scheduling capabilities and must be launched manually by pressing a button on the Roomba itself or by using the included remote control.
Features
- Self-charging home base
- 3 powerful modes of cleaning - Clean, Spot and Max
- 2 hours of cleaning, 3 hours to charge battery
- 2 Virtual Walls
- Dirt Detect
- Stair Avoidance System
- Surface Transitioning
- Bagless Debris Bin
Versions
There are two different Discovery models. The
4120 is the standard model, while the
SE 4220 is the higher end model that features all the same technology as the standard but is larger with a larger dust bin.
