iRobot Roomba j9+ vs Roborock S8 MaxV Ultra

Roborock S8 MaxV Ultra wins — The Roborock S8 MaxV Ultra does more — mops and vacuums in one pass with a self-cleaning dock

Scores: iRobot Roomba j9+ 6.5/10 · Roborock S8 MaxV Ultra 7.8/10

The Roborock S8 MaxV Ultra does more — mops and vacuums in one pass with a self-cleaning dock. The Roomba j9+ is better at the specific job of vacuuming carpet and handling pet hair with mature US-market software support.

Spec-by-spec comparison

	iRobot Roomba j9+	Roborock S8 MaxV Ultra
Suction Power	100 CFM / strong	10,000 Pa
Mopping	No	Yes — oscillating pads
Auto-Empty	Yes — bag-based	Yes — bagless
Mop Self-Cleaning	N/A	Yes — hot wash + dry
HomeKit	No	Yes
Price (2026)	~$899-999	~$1,099-1,299

iRobot Roomba j9+

What works

Superior carpet cleaning, especially for pet hair
Mature iRobot navigation with reliable room mapping
Simpler dock setup — plug in and use

What doesn't

Vacuum only — no mopping capability
PrecisionVision can push small objects rather than avoid them
No HomeKit support

Roborock S8 MaxV Ultra

What works

Vacuums and mops in one pass
Self-cleaning dock washes and dries mop pads automatically
Better obstacle avoidance on cluttered floors

What doesn't

Carpet cleaning trails j9+ on medium to high pile
Complex dock requires water supply setup
App has steeper learning curve

Bottom line

Our pick: Roborock S8 MaxV Ultra.

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