ECOVACS DEEBOT T20 OMNI vs iRobot Roomba Combo j9+

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

WINNER

ECOVACS DEEBOT T20 OMNI

ECOVACS — #18 overall

7.7/10

$799

iRobot — #25 overall

6.7/10

$999

ECOVACS DEEBOT T20 OMNI edges out iRobot Roomba Combo j9+ with a 1.0 point advantage. However, iRobot Roomba Combo j9+ has better low clearance.

Criteria	Weight	ECOVACS DEEBOT T20 OMNI	iRobot Roomba Combo j9+
Total Score	—	7.7/10	6.7/10
🗺️Navigation & Obstacle Tech	2x	85%	85%
💨Suction Power	1x	85%*	82%
📐Edge Cleaning	1x	80%*	75%
💇Tangle-Free Rollers	1x	82%	85%*
🧹Mop System	1x	88%*	65%
🔥Mop Drying	0.5x	88%*	0%
🧴Integrated Soap	0.5x	82%*	0%
🔄Mop Versatility	0.5x	60%*	25%
🗑️Auto-Empty Reliability	1x	85%	88%*
📦Bin Capacity	0.5x	82%*	78%
⏱️Refill Frequency	0.5x	85%*	75%
🧗Obstacle Mobility	1x	35%	35%
📏Low Clearance	0.5x	30%	60%*
📱App Quality	1x	82%	82%
Price	—	$799	$999
Pros		+Hot water mop washing +OZMO Turbo rotating mops +Full auto dock +Good value on sale	+Trusted iRobot brand +Retractable mop lifts fully +Strong obstacle avoidance +Self-emptying base
Cons		-No AI obstacle camera -Round shape (corners harder) -App can be complex	-Mop is basic (no wash/dry) -Expensive for features -No hot air drying
Suction		6,000 Pa	4,000 Pa
Navigation		LiDAR	Camera + AI Avoidance
Mop Type		Rotating + Auto-Wash	Pad
Self-Empty		Yes (60 days)	Yes (60 days)
Runtime		260 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