iRobot Roomba j9+ vs iRobot Roomba Combo j9+

iRobot Roomba j9+

iRobot

iRobot Roomba j9+

$800

4.3★ (2,400)

vs
iRobot Roomba Combo j9+

iRobot

iRobot Roomba Combo j9+

$1,100

4.2★ (1,800)

Quick take: The iRobot Roomba j9+ costs $300 less.

SpeciRobot Roomba j9+iRobot Roomba Combo j9+
Price$800$1,100
Rating4.3★ (2,400)4.2★ (1,800)
TypeRobot VacuumRobot Vacuum & Mop
SuctionNot disclosedNot disclosed
Battery120 min120 min
NavigationCameraCamera
Noise65 dB65 dB
Dustbin400 ml400 ml
Water tank210 ml
Self-empty dockYesYes
Auto mop washingNoNo
Hot water washingNoNo
Obstacle avoidanceYesYes
Carpet detectionYesYes
Auto mop liftingNoYes
Multi-floor mappingYesYes
App controlYesYes
Dimensions13.3 x 13.3 x 3.4 in13.3 x 13.3 x 3.4 in
Weight8.3 lbs8.9 lbs
Warranty1 year1 year

Pros & cons

iRobot Roomba j9+

  • Exceptional carpet cleaning — dual rubber extractors are best-in-class for pet hair
  • P.O.O.P. guarantee replaces the robot if it runs over pet waste
  • Excellent smart home integration with Alexa, Google Home, and Siri
  • iRobot OS learns your cleaning habits and suggests schedules
  • Clean Base auto-empty system is reliable and relatively compact
  • No mop function at this price feels like a miss compared to competitors
  • Camera navigation is slower and less efficient than LiDAR
  • 120-minute battery limits coverage to about 1500 sq ft per run
  • iRobot subscription pushes premium features behind a paywall

iRobot Roomba Combo j9+

  • Innovative retractable mop fully lifts to the top of the robot over carpet
  • Same excellent carpet cleaning as the j9+ with dual rubber extractors
  • Smart mapping learns room types and adjusts cleaning behavior automatically
  • P.O.O.P. guarantee covers pet waste incidents
  • Quieter than most competitors at 65dB
  • No self-wash dock — you must manually clean the mop pad
  • Mopping performance is mediocre compared to dedicated mop robots
  • Camera navigation is slower than LiDAR and needs ambient light
  • Expensive at $1100 without a self-washing station included