iRobot Roomba Combo j9+ vs Roborock Qrevo S

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

iRobot Roomba Combo j9+

iRobot — #25 overall

6.7/10

$999

WINNER

Roborock — #16 overall

7.8/10

$999

Roborock Qrevo S edges out iRobot Roomba Combo j9+ with a 1.1 point advantage.

Criteria	Weight	iRobot Roomba Combo j9+	Roborock Qrevo S
Total Score	—	6.7/10	7.8/10
🗺️Navigation & Obstacle Tech	2x	85%	85%
💨Suction Power	1x	82%	82%
📐Edge Cleaning	1x	75%	90%*
💇Tangle-Free Rollers	1x	85%*	82%
🧹Mop System	1x	65%	85%*
🔥Mop Drying	0.5x	0%	85%*
🧴Integrated Soap	0.5x	0%	80%*
🔄Mop Versatility	0.5x	25%	50%*
🗑️Auto-Empty Reliability	1x	88%*	85%
📦Bin Capacity	0.5x	78%	82%*
⏱️Refill Frequency	0.5x	75%	85%*
🧗Obstacle Mobility	1x	35%	40%*
📏Low Clearance	0.5x	60%*	42%
📱App Quality	1x	82%	88%*
Price	—	$999	$999
Pros		+Trusted iRobot brand +Retractable mop lifts fully +Strong obstacle avoidance +Self-emptying base	+FlexiArm reaches tight spaces +Full dock automation +Dual spinning mops +7,000 Pa suction
Cons		-Mop is basic (no wash/dry) -Expensive for features -No hot air drying	-No AI obstacle avoidance -Less suction than flagships -Newer model, less proven
Suction		4,000 Pa	7,000 Pa
Navigation		Camera + AI Avoidance	LiDAR
Mop Type		Pad	Rotating + Auto-Wash
Self-Empty		Yes (60 days)	Yes (50 days)
Runtime		120 min	180 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