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    HEAD-TO-HEAD COMPARISON

    iRobot Roomba j9+ vs Roborock S8 Pro Ultra

    We compare the iRobot Roomba j9+ and Roborock S8 Pro Ultra head-to-head on performance, features, value, and more. Here's which one wins.

    Our Pick

    iRobot Roomba j9+

    Scored 9/10 in our testing

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    Best Overall

    iRobot Roomba j9+

    Pet owners and busy families who want the smartest, most capable self-emptying robot vacuum

    Overall:9/10Winner
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    Best Vacuum + Mop

    Roborock S8 Pro Ultra

    Homeowners who want a robot that vacuums AND mops with a fully automated dock

    Overall:8.8/10
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    Score Breakdown

    iRobot Roomba j9+CategoryRoborock S8 Pro Ultra
    9.5/10 Performance9.5/10
    9.5/10 Features✓ 9.8/10
    9.5/10 ✓Ease of Use9/10
    7.5/10 ✓Value7/10
    9/10 ✓Overall8.8/10

    Specs Comparison

    iRobot Roomba j9+SpecRoborock S8 Pro Ultra
    100% stronger than j7+Suction6,000Pa
    PrecisionVision + iRobot OSNavigationSonic vibrating, auto-lifting
    60-day Clean BaseSelf-EmptySelf-empty, self-wash, self-dry

    iRobot Roomba j9+

    Pros

    • + Avoids pet waste — essential for pet owners
    • + 60-day self-emptying Clean Base
    • + 7x faster mapping than previous gen

    Cons

    • − $899 MSRP — most expensive Roomba
    • − Clean Base bags are ongoing cost
    • − Doesn't mop (vacuum only)

    Roborock S8 Pro Ultra

    Pros

    • + Vacuums AND mops in one pass
    • + Dock: self-empty, self-wash, self-dry
    • + Auto-lifting mop for carpets

    Cons

    • − $1,600 MSRP — serious investment
    • − Large dock footprint
    • − Mop pad replacement needed periodically

    Our Verdict

    Based on our scoring, the iRobot Roomba j9+ comes out on top with an overall score of 9/10. The Roomba j9+ is iRobot's smartest vacuum. PrecisionVision navigation identifies and avoids obstacles like pet waste, cords, shoes, and socks — critical for pet owners. Creates a complete map of your home 7x faster than the j7+. The Clean Base empties itself for up to 60 days. Smart Scrub mode presses down harder and scrubs back and forth on stubborn messes. Works with Alexa and Google Assistant for voice control.

    Buy the iRobot Roomba j9+ on Amazon

    Read the full Best Robot Vacuums 2026 guide for complete reviews of all 4 products.

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