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 — Roombas are just robot vacuums made by iRobot, and looking for the best Roombas is a much more specific search than looking for the best robot vacuums in general, regardless of brand. However, Roomba’s Band-Aid or Kleenex 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 keeping track of 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.

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 I 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 and a number (like j9+ or i5) or the word Max is more advanced than a Roomba with just numbers in the title (like 692) or just words (like Roomba Vac or Essential).

As of early winter 2025, the five main Roomba collections up for grabs are as follows, from most advanced to least advanced: Max, j series, s series (though nearly obsolete), i series, and Essential series.

A plus sign (like j9+) denotes that the model comes with a self-emptying dock, and Roombas that mop will have “Combo” in the title. Note that there are several Roombas that can be purchased with or without mopping capabilities or self-emptying docks. “Max” is a new layer of Roomba typology that was introduced with the drop of the Roomba Combo 10 Max — it refers to the ability of a mopping Roomba to wash and dry its own mopping pad within the self-empty dock. On the other end of the spectrum, “Essential” means “most basic” in the Roomba family, and that means no smart mapping.

To pinpoint which Roombas have smart mapping, pay close attention to how navigation is discussed in the title or in the list. If you don’t literally see the words “Smart Mapping” anywhere, that Roomba cannot map your home and clean specific rooms on command. No, “Smart Navigation” or anything about cleaning in “neat rows” does not count.

When is a new Roomba coming out?

We probably won’t see a new Roomba at least until spring 2025, but that probably won’t even be the new flagship Roomba. If, in your eyes, a question about “the new Roomba” refers to the next Roomba that’ll be a big deal, you’ll likely be waiting until August or September 2025.

iRobot is on a different release schedule than most other big robot vacuum brands, who typically debut their new flagship models for the year at the Consumer Electronics Show (CES) in January. Alternatively, iRobot tends to debut its flagship model for the year in late summer — the past two flagship Roombas (the 2023 Combo j9+ and 2024 Combo 10 Max) were announced in September and July, respectively, both with releases slated for later that fall.

Aside from The Big One, iRobot does drop other Roombas throughout the year, like an updated version of a base-tier Roomba.

Plus, fun stuff happens to the Roombas that are already out all the time. Roombas go on sale pretty frequently, even if it’s not the Black Friday, holiday, or Prime Day season. So it’s possible that at any point in time you’re reading this, the particular Roomba you’re eyeing is $100 or $200 off. I list the MSRP for each by default, but will mention the most common sale price that each Roomba drops to in “The Good” section below.)

Not sure which Roomba would be the most worth it in your household? I’ve tested nearly every Roomba series released since 2019 in my own home, and have composed a running Roomba model comparison guide to all of the best iRobot options at any point in the year.

Not every single Roomba model in existence will be listed in this guide, and not every “main” Roomba on iRobot’s website will be recommended as one of the best. Rather, I’ve pulled Roombas from multiple price points that I think offer the best value in various categories that people care about, whether that’s mopping, smart mapping, small obstacle detection, the cheapest possible path to all of those features, or budget alone. Each Roomba’s battery life and automatic emptying capabilities will be noted, along with my reasoning for choosing the highlighted model over other Roombas with similar prices.

Here’s your easy breakdown of all of the best Roomba vacuums at the start of 2025: