The 415X addresses the weak point of most combos: dried-on mess. SmartScrub applies extra pressure where a spot is stubborn, so the mop pad works at the stain instead of gliding over it. The multifunction dock also cleans the mop, and the self-emptying stage is quoted at up to 90 days.
Its body is described as 46 percent slimmer than an earlier design, so it fits under more furniture, and extending brushes pull debris out of edges. The 20,000 Pa rating is the highest in this guide, though it remains a peak figure. Next to the Roomba 105 Combo it adds the scrubbing pressure and a washing dock, and it sits in a higher price tier.
The dock is the part to keep clean. Wipe the wash area weekly, empty the dirty tank after each mop run and replace the bag and pads on schedule. If you mop weekly and your floors collect sticky spills, this is the combo that behaves like a mop. If you mop once a month, you are paying for pressure you will rarely use.
What works
- SmartScrub presses harder on dried spots
- Dock cleans the mop and empties the bin
- Slimmer body fits under more furniture
- Extending brushes reach edges
Watch out for
- Higher price tier than the other Roomba
- Dock needs weekly tray cleaning
- Pads and bags are ongoing parts
Spec sheet
- Suction
- 20,000 Pa
- Mop action
- SmartScrub extra pressure
- Dock
- 90 days self-emptying, self-cleaning
- Body
- 46 percent slimmer than earlier design
- Edges
- Extending brushes






