It might come as a surprise 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 task than looking for the best robot vacuums in general. However, Roomba's Band-Aid or Kleenex level fame really does prove just how iconic iRobot has become in the world of automated floor cleaners.
There's a good reason for that: Not only was iRobot first to the robot vacuum party, but the company 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 if you're looking for the best Roomba today, there are only a handful of models you need to know in 2025.
iRobot randomly released a ton of new Roombas this spring
iRobot released four new Roomba series in March 2025, deviating from its (unofficial) summer release schedule. I think iRobot had two reasons to hurry: the spring release of the top robot vacuums from CES and the company's rocky financial situation. As someone who tests robot vacuums for a living, I'll be the first to tell you that Roombas were flopping in a sea of smarter, more fairly-priced robot vacs from the likes of Roborock and Shark.
The new Roomba 105, Roomba 205, Roomba Plus 405, and Roomba Plus 505 series are further broken down into eight total models, many with completely different physical designs that don't scream "classic Roomba."
iRobot is playing catch-up with its competition, and for the first time, you can buy Roombas that use LiDAR for smart mapping, Roombas with dual spinning mopping pads, and a Roomba that compacts its own dust rather than self-emptying. Despite such innovations, the new 2025 Roombas are surprisingly affordable, especially compared to debut prices of past Roombas.
Most of the new Roombas (and some of the old ones, too) are already on sale for Prime Day, which will officially run from July 8 through 11 in 2025. Despite last year's failed acquisition attempt between Amazon and iRobot, Roomba deals make up a solid portion of Prime Day robot vacuum deals.
With all of these new Roombas thickening the plot, the same old question remains: "Which Roomba is the best?" I've tested nearly every Roomba released since 2019, and I'm regularly updating this guide as I test the 2025 models at home. After comparing suction, pet hair pickup, mopping, smart mapping, small obstacle detection, and price, I chose the Roombas that offer the best value for different types of households.