iRobot Roomba Combo j9+ vs iRobot Roomba j9+

A detailed side-by-side comparison scored on 14 objective criteria with weighted scoring (max 12 points).

WINNER

iRobot Roomba Combo j9+

iRobot — #25 overall

6.7/10

$999

iRobot — #28 overall

6.1/10

$599

iRobot Roomba Combo j9+ edges out iRobot Roomba j9+ with a 0.6 point advantage. However, iRobot Roomba j9+ has 40% cheaper.

Criteria	Weight	iRobot Roomba Combo j9+	iRobot Roomba j9+
Total Score	—	6.7/10	6.1/10
🗺️Navigation & Obstacle Tech	2x	85%	85%
💨Suction Power	1x	82%	85%*
📐Edge Cleaning	1x	75%	75%
💇Tangle-Free Rollers	1x	85%	85%
🧹Mop System	1x	65%*	0%
🔥Mop Drying	0.5x	0%	0%
🧴Integrated Soap	0.5x	0%	0%
🔄Mop Versatility	0.5x	25%*	0%
🗑️Auto-Empty Reliability	1x	88%	88%
📦Bin Capacity	0.5x	78%	80%*
⏱️Refill Frequency	0.5x	75%	85%*
🧗Obstacle Mobility	1x	35%	35%
📏Low Clearance	0.5x	60%	60%
📱App Quality	1x	82%	82%
Price	—	$999	$599
Pros		+Trusted iRobot brand +Retractable mop lifts fully +Strong obstacle avoidance +Self-emptying base	+Trusted iRobot brand +Excellent camera-based avoidance +Strong pet hair pickup +Easy rubber brush maintenance
Cons		-Mop is basic (no wash/dry) -Expensive for features -No hot air drying	-No mopping capability -Slightly weaker in corners -Less cutting-edge than competitors
Suction		4,000 Pa	4,000 Pa
Navigation		Camera + AI Avoidance	Camera + AI Avoidance
Mop Type		Pad	None
Self-Empty		Yes (60 days)	Yes (60 days)
Runtime		120 min	120 min
Mobility
Obstacle Climbing		Standard	Standard
Retractable LiDAR		No	No
Adaptive Chassis		No	No
Multi-Mop Switch		No	No
		Check Price Full Review	Check Price Full Review