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We would like to share our experience after comparing and testing two robot vacuums – iRobot Roomba S9 vs iRobot Roomba i7+. Based on our rating, Roomba S9 has the overall rating of 9 out of 10 versus 8.2 for Roomba i7+.
Advantages iRobot Roomba S9 over iRobot Roomba i7+
- Better suction power, 2000 PA vs 1700 PA
- When you want to give your area an intense clean, intensive mode will increase suction power
- Better battery capacity, 3300 mAH vs 1800 mAH
- Better battery life, 120 min vs 75 min
Advantages iRobot Roomba i7+ over iRobot Roomba S9
- Lower noise level, 65 dB vs 70 dB
- Larger dust bin capacity, 500 ml vs 400 ml
- Washable filter
- Less charging time, 3 hrs vs 4 hrs
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
- Voice control
Dimensions
A noticeable difference between two models is the size, which is 30.9 x 8.8/12.2 x 3.5 (D x H) cm/inches for the Roomba S9 and 33.7 x 9.1/13.3 x 3.6 (D x H) cm/inches for the Roomba i7+. The weight of the Roomba S9 is 3.6/8.1 kg/lbs, and for the Roomba i7+ it is 3.3/7.4 kg/lbs.