iRobot Roomba Combo j9+ vs iRobot Roomba Max 775 Combo + AutoWash Dock
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| Spec | iRobot Roomba Combo j9+ | iRobot Roomba Max 775 Combo + AutoWash Dock |
|---|---|---|
| Price | ~$800 | ~$800 |
| Type | Robot Vacuum & Mop | Robot Vacuum & Mop |
| Suction | Not disclosed | — |
| Battery | 120 min | — |
| Navigation | Camera | LiDAR + Camera |
| Filtration | — | — |
| Cordless | Yes | Yes |
| Bagged | — | — |
| Noise | 65 dB | — |
| Dustbin | 400 ml | — |
| Water tank | 210 ml | — |
| Self-empty dock | Yes | Yes |
| Auto mop washing | No | Yes |
| Hot water washing | No | No |
| Obstacle avoidance | Yes | Yes |
| Carpet detection | Yes | No |
| Auto mop lifting | Yes | No |
| Multi-floor mapping | Yes | No |
| App control | Yes | Yes |
| Dimensions | 13.7 x 13.7 x 3.4 in | 14.7 x 14.4 x 4.1 in |
| Weight | 8.9 lbs | 12.79 lbs |
| Warranty | 1 year | — |
Pros & cons
iRobot Roomba Combo j9+
- ✓Innovative retractable mop fully lifts to the top of the robot over carpet
- ✓Same excellent carpet cleaning as the j9+ with dual rubber extractors
- ✓Smart mapping learns room types and adjusts cleaning behavior automatically
- ✓P.O.O.P. guarantee covers pet waste incidents
- ✓Quieter than most competitors at 65dB
- ✗No self-wash dock — you must manually clean the mop pad
- ✗Mopping performance is mediocre compared to dedicated mop robots
- ✗Camera navigation is slower than LiDAR and needs ambient light
- ✗Expensive at around $800 without a self-washing station included
iRobot Roomba Max 775 Combo + AutoWash Dock
- ✓LiDAR mapping with AI camera avoidance
- ✓Heated spot mopping
- ✓6,000 mAh LFP battery
- ✓Auto-empty and mop-washing dock
- ✓$200 off the list price every day
- ✗4.1 in height and 12.79 lb weight
- ✗Suction, runtime, noise, warranty, hot-water dock washing, carpet detection and mop lifting are not published
- ✗$100 more than the Roomba Plus 575 Combo, which lists heated pad washing