The s9+ is the strongest Roomba at 2500Pa — and it's built for carpet

2500Pa is the top suction in iRobot’s lineup, and the s9+ uses every bit of it. Where other Roombas are generalists, this one is a carpet specialist — the D-shape lets it jam into corners and along baseboards, and the suction pulls deeply enough to grab what’s settled into the fibers. It’s the most expensive Roomba for a reason: if your house is mostly carpet, this is the one.