Question 1

Which is better, iRobot Roomba j9+ Combo or Roborock S8 MaxV Ultra?

Accepted Answer

Both products scored 8.5/10 in our testing — it's a tie. Choose based on which features matter most to you.

Question 2

Is the iRobot Roomba j9+ Combo worth it over the Roborock S8 MaxV Ultra?

Accepted Answer

The iRobot Roomba j9+ Combo scores 8.5/10 while the Roborock S8 MaxV Ultra scores 8.5/10. The iRobot Roomba j9+ Combo is our "Best Overall" pick in the Best Robot Vacuums for Carpet 2026 category.

iRobot Roomba j9+ Combo vs Roborock S8 MaxV Ultra: Which to Buy?