- Is the Roomba Combo j9+ worth it at $639.99?
- At $639.99 at eBay as of November 3, 2026, it is a strong buy if you want vacuuming and mopping from one robot with a dock that refills and empties itself. At its original $1,399 it was hard to justify; at this price the convenience is easier to defend.
- How does it compare with the Roomba Combo j7+?
- Both use a retracting mop pad. The j9+ adds a dock that refills the water tank as well as emptying the bin, and it has stronger suction and a better camera. The j7+ is the cheaper option if you don't mind filling the tank yourself.
- Does the mop really lift off carpet?
- Yes. The mop pad retracts up into the robot when it detects carpet, so it can vacuum rugs and mop hard floors in the same run without you swapping anything.
- Do I need a water line for the dock?
- No. The dock has a built-in water tank that it refills the robot from. You refill that tank by hand every few weeks, depending on use.
- What's in the box?
- The robot, the Clean Base dock with water tank, one mop pad, a dust bag and a sample of iRobot's cleaning solution. Extra pads and bags are sold separately.
- When is it cheapest?
- Combo robots like this one drop most around Black Friday and Prime Day. The current $639.99 at eBay is already close to the lowest price seen for a new unit, so waiting may not save much.
- Where is the iRobot Roomba Combo j9+ cheapest?
- At Robotomated, for $1,099.00, as of our latest check.
- Where can I buy the iRobot Roomba Combo j9+?
- 5 stores we checked sell it, including eBay, Robotomated, Walmart, Home Depot, iRobot.com.
