iRobot Roomba j9+ vs Roborock S8 MaxV Ultra

iRobot Roomba j9+
Roborock S8 MaxV Ultra
Roborock S8 MaxV Ultra
Verified Confidence: 85%

Verdict: The Roborock S8 MaxV Ultra is the better buy for most homes — its autonomous dock handles vacuuming, mopping, washing, and drying without you touching anything for weeks.

Winner: Roborock S8 MaxV Ultra

iRobot Roomba j9+: 7.3/10

Roborock S8 MaxV Ultra: 8/10

Spec-by-spec comparison

iRobot Roomba j9+Roborock S8 MaxV Ultra
Suction Power~2,200 Pa (100 AW)10,000 Pa
MoppingNoneDual spinning pads, 6N pressure
Auto-EmptyYes, ~60-day bagYes, auto-wash & dry mop too
Obstacle AvoidancePrecision Vision NavigationReactiveAI 2.0 dual camera
NavigationCamera + structured lightCamera + structured light + LiDAR
HomeKit SupportVia Siri ShortcutsNo native support

iRobot Roomba j9+

What works

  • Best tangle-resistance for long hair and pet fur
  • Simpler app most people configure in under 10 minutes
  • Smaller dock footprint fits tighter spaces

What doesn't

  • No mopping capability of any kind
  • Expensive for a vacuum-only machine at $1,099
  • Replacement Clean Base bags cost more than Roborock equivalents

Roborock S8 MaxV Ultra

What works

  • 10,000 Pa suction leads the category on carpet fine debris
  • Fully autonomous dock — washes, dries, refills mop water weekly
  • Dual spinning mop pads with 6N pressure actually scrub dried spills

What doesn't

  • Large dock footprint requires dedicated wall space
  • App learning curve takes longer than iRobot's
  • No native Apple HomeKit support

Bottom line

Our pick: Roborock S8 MaxV Ultra. It edges out the alternative on 10,000 pa suction leads the category on carpet fine debris. That said, iRobot Roomba j9+ still wins on best tangle-resistance for long hair and pet fur — consider it if that single trade matters most for your use.

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