As I noted at the time, the Roombas that iRobot had staked its financial future on shared little to no DNA with the original Roombas. They looked like much of the mid-range competition — generic, Lidar-based robot vacs with the Roomba name and a few design tweaks plastered on. I’ve tested two of them, the 505 and the 205, and have been underwhelmed, running into significant issues with both models.
I’ve tested a couple of the 3i vacuums, including the flagship 3i S10 Ultra. It’s an…
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