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 than 20 Roombas have come out since the first one hit homes in 2002, but tracking the best Roombas isn’t so chaotic when you consider that only a handful of those models are actually relevant at the time of your shopping.
How to tell the difference between the Roomba models
The arbitrary numbers and letters of the Roomba family tree are confusing at face value, but nothing that can’t be told apart after learning a few super general classification themes.
When shopping for a Roomba, you’ll really only be choosing from what we call iRobot’s core lineup: the group of three to five Roomba series that are actively sold on iRobot’s website. Any Roomba whose title includes a letter with a number (like j9+ or i5) is more advanced than a Roomba with just numbers in the title (like 692).
The j Series is iRobot’s most advanced right now, followed by the s Series, i Series, and then the 600 Series. A plus sign (like j9+) denotes that the model comes with a self-emptying dock. Roombas that mop will have “Combo” in the title, and there are several Roombas that can be purchased with or without mopping abilities.
You won’t need to memorize any nuances past these overarching rules. We’ll cover the fine print, like which Roombas have smart mapping or small obstacle detection, in our deep dive below, noting the most important differences between each current Roomba.
What is the most recommended Roomba vacuum?
Naturally, there is one Roomba that is technically “the best”: the best at cleaning, the best at navigating, and the best at being self-sufficient. But which Roomba is categorically the best may not be the best Roomba for every household, especially when price tags come into play. We’ve created a 2024 Roomba comparison guide to help you pinpoint which Roomba would work best for your home’s size, floor type, pet situation, and more.
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Leah Stodart
