Ecovacs Deebot X9S Pro Omni
A well-equipped roller-mop robot for pet homes on a mid-range budget, with dual cleaning solutions and a camera for checking in on pets.
Amazon $899.99$899.99
The Ecovacs Deebot X9S Pro Omni is the better robot vacuum overall, rated 4.1 to 3.9.
iRobot Roomba Plus 678 Combo
A strong pick for hard-floor homes that want hot-water roller mopping and a full-service dock for less than iRobot’s flagship 875.
Amazon $899.99$899.99
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every self-cleaning dock robot vacuum; a clear win is highlighted. How we rank explains each one.
| Factor weight | Ecovacs Deebot X9S Pro Omni | iRobot Roomba Plus 678 Combo |
|---|---|---|
| Overall rating | 4.1/5 | 3.9/5 |
| Cleaning 30% | 71 not yet tested; estimated from 10 tested Ecovacs robots and the median of the 70 tested robots | 48 not yet tested; estimated from 3 tested iRobot robots and the median of the 70 tested robots |
| Value 25% | 42 $900 | 42 $900 |
| Dock 20% | 90 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent |
| Navigation 15% | 100 LiDAR + camera | 100 LiDAR + camera |
| Mopping 10% | 95 Roller, lifts 15 mm, extends to edges | 90 Roller, lifts 10 mm, extends to edges |
Specifications
| Ecovacs Deebot X9S Pro Omni | iRobot Roomba Plus 678 Combo | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 30,000 Pa | 30,000 Pa |
| Main brush | single floating bristle brush (ZeroTangle 4.0) | hair-cutting multi-surface bristle brush |
| Dustbin | 250 mL | - |
| Extending side brush | No | - |
| Mopping | ||
| Mop | Roller, lifts 15 mm, extends to edges | Roller, lifts 10 mm, extends to edges |
| Mop lift | 15 mm | 10 mm |
| Leaves mop at dock | No | No |
| Extending mop | Yes | Yes |
| Water tank | 110 mL | - |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Dust bag | 2.5 L | - |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | Yes |
| Water hookup option | No | - |
| Clean water tank | 4 L | - |
| Navigation & app | ||
| Navigation | LiDAR + camera | LiDAR + camera |
| Obstacle avoidance | Structured light plus RGB AI camera with fill light | PrecisionVision AI camera object recognition; SprayForce AI pre-treats detected stains |
| Climbs thresholds | 24 mm | 35 mm |
| Voice assistants | YIKO | - |
| Build | ||
| Height | 3.7 in (95 mm) | 3.9 in (99 mm) |
| Retracting LiDAR | No | - |
| Battery | 4,000 mAh | 6,000 mAh |
| Run time | Up to 2 h 20 min | - |
| Weight | 11.7 lb (5.3 kg) | 10.7 lb (4.8 kg) |
| Warranty | 1 year | - |
| Released | 2026-03 | 2026-09 |