ECOVACS DEEBOT N20 Plus vs iRobot Roomba Combo j9+

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

ECOVACS DEEBOT N20 Plus

ECOVACS — #27 overall

6.2/10

$399

WINNER

iRobot — #25 overall

6.7/10

$999

iRobot Roomba Combo j9+ edges out ECOVACS DEEBOT N20 Plus with a 0.5 point advantage. However, ECOVACS DEEBOT N20 Plus has 60% cheaper.

Criteria	Weight	ECOVACS DEEBOT N20 Plus	iRobot Roomba Combo j9+
Total Score	—	6.2/10	6.7/10
🗺️Navigation & Obstacle Tech	2x	78%	85%*
💨Suction Power	1x	80%	82%*
📐Edge Cleaning	1x	75%	75%
💇Tangle-Free Rollers	1x	72%	85%*
🧹Mop System	1x	55%	65%*
🔥Mop Drying	0.5x	0%	0%
🧴Integrated Soap	0.5x	0%	0%
🔄Mop Versatility	0.5x	25%	25%
🗑️Auto-Empty Reliability	1x	80%	88%*
📦Bin Capacity	0.5x	75%	78%*
⏱️Refill Frequency	0.5x	75%	75%
🧗Obstacle Mobility	1x	30%	35%*
📏Low Clearance	0.5x	50%	60%*
📱App Quality	1x	78%	82%*
Price	—	$399	$999
Pros		+Self-empty under $500 +8,000 Pa suction +LiDAR navigation +ECOVACS app quality	+Trusted iRobot brand +Retractable mop lifts fully +Strong obstacle avoidance +Self-emptying base
Cons		-No mop washing/drying -No AI obstacle avoidance -Basic mop pad system	-Mop is basic (no wash/dry) -Expensive for features -No hot air drying
Suction		8,000 Pa	4,000 Pa
Navigation		LiDAR	Camera + AI Avoidance
Mop Type		Pad	Pad
Self-Empty		Yes (60 days)	Yes (60 days)
Runtime		300 min	120 min
Mobility
Obstacle Climbing		Standard	Standard
Retractable LiDAR		No	No
Adaptive Chassis		No	No
Multi-Mop Switch		No	No
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