Best for Streaking / Residue
Roomba Combo j9+ Robot Vacuum & Mop
4.0 feature score
Highest scored product for this feature based on supporting review evidence.
Best iRobot Vacuums for Streaking / Residue
Streaking / Residue Decision Dashboard
Safest pick
iRobot Roomba Robot Vacuum and Mop Combo Essential, Y0140
3.3 feature score
Balances feature score, supporting reviews, and overall product strength.
Most evidence
iRobot Roomba Combo 10 Max
4 supporting reviews
Has the broadest review evidence for this feature.
Best overall product
iRobot Roomba Combo i5 Robot Vacuum
3.9 overall score
Strongest overall product among items with scored evidence for this feature.
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Residue and streaking are usually minor, but some reviewers notice occasional streaks or sticky patches after messy tests like jam/jelly. Regular pad washing and appropriate water/solution settings help reduce visible...
Pros: Pet-Ready Features, Mop lifting system
Cons: Corner Cleaning (Robot), Carpet — High-Pile Pickup
Residue and smearing are mixed: reviewers report ketchup smearing and small remaining seeds, even though most messes were eventually cleared.
Pros: Ease of use, Accessories and Tools
Cons: Innovation compared to competitors, Area Rug Handling
At least one hands-on review reports streaking during mopping, suggesting results depend on pad wetness, floor type, and solution choice.
Pros: Build quality &, durability
Cons: Mop lifting system, Cord management
Residue and streak/sticky-floor evidence is negative, with multiple tests finding sticky residue or too much water left behind.
Pros: Hair Pickup — Hard Floors, Carpet — Medium-Pile Pickup
Cons: Heating element, Kid-friendliness
Streaking evidence is limited but negative from a setup test that saw an unwet strip while mopping.
Pros: Pet-Ready Features, Ease of use
Cons: Self-cleaning cycle, Dock noise