The Roomba i3, however, knocks a couple hundred bucks off the cheaper of these two options and is compatible with a companion dirt-dumping base if you’re interested in paying a little extra for the vacuum to empty itself.
The Clean Base doubles as a charging station for the Roomba i3+, which will allow the vacuum to charge itself when its battery is low before finishing its cleaning tasks.
Additionally, iRobot claims the Roomba i3+ has 10 times the power-lifting suction compared to the Roomba 600 Series, Roomba’s budget model, and a spokesperson told Gizmodo its cleaning system is the same as on the Roomba i7 and i7+.