iRobot Roomba S9 vs iRobot Roomba 981
Cleaning
| iRobot Roomba S9 | iRobot Roomba 981 | |
|---|---|---|
 |  | |
| Cleaning type | Dry | Dry |
| Suction power | 2200 Pa | n/a |
| Cleaning area | 200 m² | 185 m² |
| Number of side brushes | 1 piece(s) | 1 piece(s) |
| Overcoming the thresholds | up to 2 cm | up to 2 cm |
| Self cleaning base | Yes | No |
| Noise level | 62 dB | 61 dB |
| Turbo brush | Yes | Yes |
| Usage Area | Hard Floor+Carpet | Hard Floor+Carpet |
| Power | n/a | 33 W |
| Keep Out Zones | Vacuum | Vacuum |
| Cleaning zone limiter | Mobile Application | Virtual Wall |
| Climbing Threshold | 20 mm | 20 mm |
| Wet Mopping | n/a | No |
| Vibrating mopping pad | No | No |
| Cleaning time calculation | Yes | No |
| 3-Point Cleaning System | Yes | Yes |
| Edge Cleaning | Yes | Yes |
| Bump Prevention | n/a | Yes |
| SPOT Mode | Yes | Yes |
Technical specifications
| iRobot Roomba S9 | iRobot Roomba 981 | |
|---|---|---|
| Product Type | Robot Vacuum | Robot Vacuum |
| Wi-fi | Yes | Yes |
| Weekly Schedule | n/a | Yes |
| Modes | n/a | 3 mode(s) |
| Time Scheduling | Yes | Yes |
Navigation
| iRobot Roomba S9 | iRobot Roomba 981 | |
|---|---|---|
| Mapping | Yes | Yes |
| Mapping Type | VSLAM | n/a |
| Smart Navigation | Yes | Yes |
| Manual robot control (from the app) | Yes | Yes |
| Selective Room Cleaning | Yes | No |
| Setting the suction power and water level for each room | No | No |
| Storing multiple cleaning maps in memory (cleaning multiple floors) | Yes | No |
Control
| iRobot Roomba S9 | iRobot Roomba 981 | |
|---|---|---|
| Voice prompts | Yes | Yes |
| Voice Assistant Support |
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| Scheduled cleaning | Yes | Yes |
| Manual control (from the button on the vacuum cleaner) | No | Yes |
| Control from smartphone | Yes | Yes |
| Remote control | No | No |
Integration with cloud services
| iRobot Roomba S9 | iRobot Roomba 981 | |
|---|---|---|
| Amazon Alexa | Yes | Yes |
| Google Home | Yes | Yes |
| Samsung SmartThings | No | No |
| Xiaomi Mi Home | No | No |
Sensors
| iRobot Roomba S9 | iRobot Roomba 981 | |
|---|---|---|
| Number of Sensors | n/a | 42 piece(s) |
| Carpet detection | No | No |
| Dirt detection | Yes | Yes |
| Cliff Sensor | Yes | Yes |
Battery
| iRobot Roomba S9 | iRobot Roomba 981 | |
|---|---|---|
| Battery type | Li-ion | Li-ion |
| Battery Capacity | 3300 mAh | 3300 mAh |
| Battery life up to | 120 Minutes | 75 min |
| Charging time | 3 Hours | 3 Hours |
| Fast charging | No | n/a |
| Auto Recharge | Yes | Yes |
Bin
| iRobot Roomba S9 | iRobot Roomba 981 | |
|---|---|---|
| Dustbin Capacity | 400 ml | 600 ml |
| Bin Station | No | No |
| Dust collector filling indicator | Yes | Yes |
| Washable Dustbin | Yes | n/a |
Filters
| iRobot Roomba S9 | iRobot Roomba 981 | |
|---|---|---|
| Cyclone Filter | No | No |
| Other Filters | AeroForce | AeroForce |
Dimensions and equipment
| iRobot Roomba S9 | iRobot Roomba 981 | |
|---|---|---|
| Width | 311 mm | 351 mm |
| Height | 89 mm | 92 mm |
| Depth | 311 mm | 351 mm |
| Weight | 3.9 kg | 4 kg |
| Color | Gold | Grey |
| Included Equipment |
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