Roomba models, explained: The guide to deciding which Roomba to buy on Black Friday

It would come as a surprise to more people than you think that "roomba" isn't the universal term for a robot vacuum. It is, in fact, a capital "R" that denotes Roomba as a proper noun rather than a generic trademark, though the Band-Aid level interchangeability really does exemplify just how iconic iRobot has become in the world of automated floor cleaners.That can be attributed to the fact that iRobot has consistently delivered some of the most reliable robot vacuum models for two decades. More