The Karcher FC 7 Cordless Hard Floor Cleaner is ideal for those who prefer manual control and targeted hard floor cleaning with a dedicated washing system. The iRobot Roomba j9+ Robot Vacuum is better suited for users seeking autonomous cleaning, smart features, and the ability to clean both hard floors and carpets with obstacle avoidance.
| Attribute | Karcher FC 7 Cordless Hard Floor Cleaner | iRobot Roomba j9+ Robot Vacuum |
|---|---|---|
| Cordless vs. Robot Vacuum | Cordless electric mop (manual operation) | Robot Vacuum |
| Floor Types Compatibility | Parquet, laminate, stone, ceramic tiles, PVC, and vinyl (water-resistant and sealed) | Hard floors and carpets |
| Cleaning System | Two-tank system (fresh and dirty water). Rollers continuously wetted from the fresh water tank. | 3-stage cleaning system with dual multi-surface rubber brushes, edge-sweeping brush, and Power-Lifting Suction |
| Cleaning Solution System | Two-tank system (fresh and dirty water). Rollers continuously wetted from the fresh water tank. | Water or cleaning solution with the Combo model |
| Runtime per Charge | Approximately 45 minutes (135-175 m ) | Up to 75 minutes (typically 60-75 minutes) |
| Charging Time | About 4 hours | Longer than the j7 |
| Weight | 4.3 kg (9.5 lbs) without accessories, 8.2 kg (19.4 lbs) with packaging | 4.07 kg (8.97 lbs for the robot, 21.9 lbs for the Clean Base) |
| Self-Cleaning Features | Self-cleaning mode for rollers and hoses. Automatic rinsing in the cleaning station. | Empties dustbin into Clean Base (holds up to 60 days of debris). Clean Base Auto-Fill Dock (Combo model) refills liquid for up to 30 days. |
| Smart Features & App Integration | No smart features or app integration | iRobot OS app (Dirt Detective, Clean Zones, Keep Out Zones, object recognition). Customizable routines, enhanced maps, smart home integrations. |
| Edge Cleaning Capability | Cleans right up to the edges | Cleans along edges, edge-sweeping brush |
| Dustbin/Water Tank Capacity | Fresh water tank: 400 ml (13.53 oz), Dirty water tank: 200 ml (6.76 oz) | 313 ml (robot), 2.4L dirtbag (Clean Base) |
| Noise Level | 59 dB(A) | Around 65 decibels |
| Maintenance Requirements | Rollers machine washable at up to 60 C. Includes cleaning brush for hair filter. Waste water tank is dishwasher safe. | Periodic replacement of filters and dirt disposal bags |
| Obstacle Avoidance | Not available | PrecisionVision Navigation to avoid obstacles like pet waste, cords, and furniture |
| Price | Not available | Not available |