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It makes sense comparing Xiaomi Mi Robot vs iRobot Roomba S9 because they both are able to give some premium features. Based on our rating, Mi Robot has the overall rating of 8.5 out of 10 versus 9 for Roomba S9.
Advantages Xiaomi Mi Robot over iRobot Roomba S9
- Lower noise level, 65 dB vs 70 dB
- Larger dust bin capacity, 420 ml vs 400 ml
- Better battery capacity, 5200 mAH vs 3300 mAH
- Better battery life, 150 min vs 120 min
Advantages iRobot Roomba S9 over Xiaomi Mi Robot
- Better suction power, 2000 PA vs 1800 PA
- Voice control
Common features and specifications
- Both robot vacuums are Wi-Fi enabled
- Dry cleaning mode
- A Virtual Wall creates an invisible barrier that robot vacuums won't cross
- Both robot vacuums use smart path planning to clean more efficient
- One side brush
- Single room mode
- Intensive clean mode
- Equal charging time: 4 hrs
Dimensions
A noticeable difference between two models is the size, which is 35.4 x 9.6/13.6 x 3.8 (D x H) cm/inches for the Mi Robot and 30.9 x 8.8/12.2 x 3.5 (D x H) cm/inches for the Roomba S9. The weight of the Mi Robot is 3.8/8.4 kg/lbs, and for the Roomba S9 it is 3.6/8.1 kg/lbs.