Compare iRobot Roomba S9+ vs. VIOMI S9

All robot vacuums

Cleaning Features
	iRobot Roomba S9+	VIOMI S9
Photo
Where to buy	Amazon.com$286.05 Amazon.de€652.58 Amazon.caC$1124.01 Amazon.co.uk£1399.00	Amazon.com$374.89 Amazon.de€129.00 Amazon.co.uk--
SRR Score	186	185
Mapping / Path planning	Yes	Yes
Mapping Sensor Type	camera	LDS
High-Precision Map	Yes	Yes
Objects recognition (front camera)	No	No
Recharge & Resume	Yes	Yes
Autocally Docks and Recharges	Yes	Yes
Noise Level	N/A	70 dB
Display	No	No
Side Brushes (one or two)	1	1
Voice Prompts	Yes	Yes
Suction Power	2200 Pa	2700 Pa
Сleaning Area	200 ㎡ / 2153 ft²	320 ㎡ / 3444 ft²
Dustbin Capacity	400 ml / 13.53 oz	300 ml / 10.14 oz
Disposable dustbag capacity	1 L	3 L
Automatic Dirt Disposal	Yes	Yes
Barrier-cross Height	20 mm / 0.79 in	20 mm / 0.79 in
HEPA filter	Yes	Yes
Washable Filter	No	Yes
Mopping Features
Wet Mopping	No	Yes
Electric water flow control	N/A	Yes
Water Tank Capacity	-	250 ml / 8.45 oz
Vibrating mopping pad	No	No
Automatic mop lifting	No	No
Auto water tank refilling	No	No
Auto mop washing	N/A	No
Battery
Battery Capacity	3300 mAh	5200 mAh
Battery life	120 min	150 min
Charging Time	N/A	N/A
Rated Power (Watts)	N/A	50 W
Control
Scheduling	Yes	Yes
IR/RF Remote Control	No	No
Wi-Fi / Smartphone App	Yes	Yes
Wi-Fi Frequency Band	2.4 / 5 GHz	2.4 GHz
Amazon Alexa Support	Yes	N/A
Google Assistant Support	Yes	N/A
Magnetic/Optical Virtual Walls	Yes	No
App Features
Real-time tracking	No	Yes
Digital Blocked Areas	Yes	Yes
Zoned cleaning	Yes	Yes
Multi-floor maps	Yes	Yes
Manual movement control	Yes	Yes
Selected Room Cleaning	Yes	Yes
No-mop zones	N/A	No
Sensors
Carpet Boost	No	Yes
Anti-drop / Cliff Sensor	Yes	Yes
Dirt Sensor	Yes	No
Full Dustbin Sensor	Yes	No
Other Specifications
Weight	3.37 kg / 7.43 lbs	3.8 kg / 8.38 lbs
Width	33.88 cm / 13.34 in	35 cm / 13.78 in
Height	9.22 cm / 3.63 in	9.8 cm / 3.86 in
In the box	robot vacuum, AC cord, charging dock, dual-mode virtual barrier, hepa filter, extra side-brush
Release Date	May, 2019	Nov, 2020
Warranty	12 months	12 months