iRobot's founder Colin Angle has a clear explanation for what went wrong: the Chinese fast follower. Companies like Roborock, Dreame, and Ecovacs entered the market after 2018 with a protected domestic market to cut their teeth on, iterated faster than iRobot could respond, and arrived in Western markets with better products at lower prices. That framing is accurate as far as it goes. It undersells the more specific story of what "better" actually meant — and why consumers chose it.

The first dimension is functional. iRobot stayed focused on vacuuming. Chinese competitors moved earlier and faster into mopping — a feature that sounds incremental but represents a fundamentally different product proposition. A robot that vacuums saves you one task. A robot that vacuums and mops replaces a cleaning session. Roborock, Dreame, and Ecovacs were building combination machines with self-emptying docks, auto-washing mop pads, and hot water cleaning cycles while Roomba was still refining its bump-and-turn navigation. iRobot adopted LiDAR navigation only in its 2025 lineup — years after Chinese brands had made it standard across mid-range models. By then, Chinese competitors had turned a premium feature into a floor expectation: budget models under $250 now ship with LiDAR navigation and self-emptying docks that were exclusive to $1,000+ devices in 2023.

The second dimension is privacy — and here the competitive logic is less obvious but more durable. iRobot's camera-based navigation created a persistent anxiety. In 2022, MIT Technology Review revealed that development Roombas had captured intimate images inside testers' homes which subsequently appeared on social media. The incident involved test units, not consumer products. The damage to trust was not contained to test units. The proposed Amazon acquisition amplified the concern: a company already accused of building surveillance infrastructure around its customers was about to own a robot that mapped the interior of your home room by room. European regulators opened an inquiry. The acquisition was blocked — partly on antitrust grounds, but the data anxiety it crystallised did not disappear with the deal. Chinese brands, whatever their own data practices, arrived without that specific story attached. Roborock's navigation relies primarily on LiDAR — a laser-based spatial sensing system that maps distance and geometry without capturing images of the people living in the home. The consumer proposition is meaningfully different: the robot knows where the sofa is without knowing what you look like on your sofa.

iRobot created a category and then held its position rather than developed it, while a cohort of competitors used a protected home market to fund rapid iteration and arrived in the West having already solved the problems Roomba hadn't. The bankruptcy is being read primarily as a geopolitical story — unfair competition, protected markets, the Amazon deal blocked at the wrong moment. It is also a product story: a pioneer that confused inventing a category with owning it, while the companies that came after kept asking what the product should actually do next.