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- Roomba j7 j7156 vs S7 Max Ultra
iRobot Roomba j7 j7156 vs Roborock S7 Max Ultra
What Roomba j7 j7156 does better (1) and where S7 Max Ultra wins (1) — every spec side by side.
vs
3.5Base station7.1
Why is Roomba j7 j7156 better than S7 Max Ultra?
- Dustbin (robot)400 ml vs 350 ml+14%
Why is S7 Max Ultra better than Roomba j7 j7156?
- Base stationCharging dock vs All-in-one dock (empty + wash)
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | — | 5,500 Pa |
| Dustbin (robot) | 400 ml | 350 ml |
| Main brush | — | Single main brush |
| Side brushes | — | 1 |
| Carpet detection | — | Yes |
| Noise level | — | 69 dB |
| Navigation & obstacles | ||
| Navigation | — | Laser (LiDAR) |
| Navigation sensors | — | LiDAR laser (LDS), Ultrasonic sensor |
| Obstacle avoidance | — | Basic sensors (infrared / bumper) |
| No-go zones / virtual walls | — | Yes |
| Room mapping & room selection | — | Yes |
| Mopping | ||
| Mop type | — | Vibrating / sonic mop |
| Mop lifting on carpets | — | Yes |
| Mop lift height | — | 5 mm |
| Water tank (robot) | — | 200 ml |
| Base station | ||
| Base station | Charging dock | All-in-one dock (empty + wash) |
| Auto-empty dust station | — | Yes |
| Dust bag (dock) | — | 2.5 l |
| Mop washing in the dock | — | Yes |
| Hot-air mop drying | — | Yes |
| Automatic water refill | — | Yes |
| Clean water tank (dock) | — | 3 l |
| Dirty water tank (dock) | — | 2.5 l |
| Battery & runtime | ||
| Battery capacity | — | 5,200 mAh |
| Runtime | — | 180 min |
| Charging time | 360 min | — |
| Cleaning area per charge | — | 300 m² |
| Size & weight | ||
| Width / diameter | — | 353 mm |
| Length | — | 353 mm |
| Height | — | 96 mm |
| Shape | Round | Round |
| Colours | Grey | White |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant | Amazon Alexa, Google Assistant, Apple Siri |
