A situation
Which robot vacuum handles pet hair and accidents with the least owner effort?
A pet home asks the robot to keep hair out of its brush, steer clear of accidents on the floor, and need as little emptying and refilling as possible. These are the four facts that decide the owner's work.
This page checks
- Hair in the brushMaker design claims and what testers found
- Pet accidentsWhether the robot is built to steer around them
- Dock bagHow long a bag lasts between swaps
- Dock waterWhat the owner refills or empties
iRobot
Where to buy
Out of stock at iRobot US on 2 Oct 2026
iRobot j-series firmware update expands obstacle recognition and carpet detection
Dreame
Where to buy
Full specifications18 figures on record · 13 differ
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Roomba Combo j9+
X50 UltraPets in the house
What hair and accidents ask of each one
Only iRobot backs accident avoidance with a replacement promise, and Dreame names pet waste among 200 objects it identifies. Claimed bag intervals run from 60 days (iRobot) to about 100 days (Dreame).
iRobot says its dual rubber brushes avoid pet hair tangles. One hands-on review still checked the bristles weekly.
iRobot product page and hands-on review0%of 7 in hair tangled
Independent course result for the X50 Ultra. Dreame's own page claims no tangles in its DuoBrush.
Independent lab test1 yearreplacement promise
Covers solid cat and dog waste only. A hands-on review saw it detect and avoid feces in testing.
iRobot product page and hands-on review20 of 24obstacle course points
Dreame says it identifies pet waste among 200 object types. No accident test found.
Dreame page; independent lab test60days
Clean Base empties debris for up to 60 days, per iRobot.
iRobot product page100days claimed
3.2 L dust bag, as printed on Dreame's page.
Dreame X50 Ultra product page30days of liquid
Auto-Fill dock refills the robot's tank for up to 30 days, per iRobot.
iRobot product page4.5 / 4L clean / waste
From a review of the X50 Ultra Complete. Dreame's own page lists no tank sizes.
Hands-on review of the Complete modelSame on both: the dock empties the dustbin into a bag by itself. Each uses a bag the owner buys and swaps, and no paid app plan was found for either.
Fit CheckRoomba Combo j9+ and X50 Ultra carry the same verdict on every condition their Fit Checks share, so a fit control would give the same answer for each. Each robot’s own page has its full Fit Check.
Everything else
Where they land among 259 robot vacuums
Only the measures on which these two differ. The bar is the whole category; the block is the typical middle half; the tick is the median.
Sources
Where every figure comes from
- Roomba Combo j9+ · irobot.com US product page; one hands-on review
- X50 Ultra · global.dreametech.com X50 Ultra product page; independent lab test; one hands-on review of the Complete model
Every value was read from the page named on 2 Oct 2026. "Not found" means the pages listed were opened and say nothing; it never means the robot lacks the feature.
Questions
What readers ask
Does any maker promise to replace the robot after a pet accident?
iRobot does for the j9+: it “won’t pick up pet accidents or we’ll replace it for free”, valid one year from purchase and covering solid cat and dog waste only. No such promise was found for the Dreame.
Which of them tangled least in testing?
In an independent course the Dreame X50 Ultra tangled 0% of 7 in hair. The j9+ review checked bristles weekly.
How often does the dock bag need changing?
Makers claim up to 60 days (iRobot) and 100 days (Dreame).
Common questions