If you've got pets that shed, both the Roborock S8 MaxV Ultra and Roomba j9+ can handle the situation. They just approach the problem differently.
The S8 MaxV Ultra relies on brute force: 10,000 Pa of suction that yanks embedded pet hair out of carpet fibers. The Roomba j9+ focuses on brush design: iRobot's anti-tangle system prevents hair from wrapping around the rollers in the first place.
The Pet Hair Comparison
Extraction Power
The S8 MaxV Ultra wins here. That suction power pulls fur that's worked deep into carpet padding. If you've got a husky blowing their coat, a Maine Coon molting, or multiple pets creating fur tumbleweeds, the Roborock handles the volume better.
Anti-Tangle Performance
The Roomba j9+ wins this round. iRobot has perfected their anti-tangle brush design, and the j9+ is their best yet. 90% fewer tangles compared to older models. After weeks of cleaning up after shedding pets, the j9+'s brushes stay cleaner with less maintenance.
Pet Waste Avoidance
Both vacuums detect and avoid pet accidents. The S8 MaxV Ultra uses camera and 3D sensing, while the j9+ has PrecisionVision trained on pet waste recognition. Neither is foolproof, but both work well in normal lighting.
Which One Should You Get?
Big fluffy dogs, thick carpets, serious fur problems: Roborock S8 MaxV Ultra
Cats or smaller dogs, you hate cleaning brush rollers: Roomba j9+
Hard floors with moderate shedding: Either works great
For most pet owners, both vacuums are excellent. The S8 MaxV Ultra has more extraction power. The j9+ has better brush maintenance. Pick whichever matters more to you.
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How we researched this
Where this comes from: this answer draws on the product's published specifications and the reviews ShopSavvy collected for it, alongside prices from ShopSavvy's price data.
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