• Specs
• Q&A

iRobot Roomba 866 Specs & Features

🧭 Navigation
Mapping / Path planning	No
Mapping Sensor Type	-
High-Precision Map	No
Objects recognition (front camera)	No
Magnetic/Optical Virtual Walls	No
Barrier-cross Height	16 mm / 0.63 in
Сleaning Area	90 ㎡ / 969 ft2
Anti-drop / Cliff Sensor	Yes

🧹 Cleaning Features
Suction Power	1000 Pa
Dustbin Capacity	N/A
Automatic Dirt Disposal	No
Disposable dustbag capacity	N/A
HEPA filter	Yes
Washable Filter	No
Side Brushes (one or two)	1
Carpet Boost	No
Dirt Sensor	Yes
Full Dustbin Sensor	Yes

🧽 Mopping features
Wet Mopping	No
Electric water flow control	N/A
Water Tank Capacity	-
Vibrating mopping pad	No
Automatic mop lifting	No
Auto water tank refilling	No
Auto mop washing	N/A

🔋 Battery
Battery Capacity	1800 mAh
Battery life	60 min
Recharge & Resume	No
Charging Time	180 min
Autocally Docks and Recharges	Yes
Rated Power (Watts)	33 W

⚙ Usability & Control
Wi-Fi / Smartphone App	No
Scheduling	Yes
IR/RF Remote Control	Yes
Wi-Fi Frequency Band	N/A
Amazon Alexa Support	No
Google Assistant Support	No
Display	No
Voice Prompts	Yes
Noise Level	60 dB

📱 App Features
Real-time tracking	No
Digital Blocked Areas	No
Zoned cleaning	No
Multi-floor maps	No
Manual movement control	No
Selected Room Cleaning	No
No-mop zones	N/A

Other Specifications
Weight	3.8 kg / 8.38 lbs
Width	35.3 cm / 13.9 in
Height	9.2 cm / 3.62 in
In the box
Release Date	2017
Warranty	12 months

Updated: Oct 28, 2026.

Features Chart

* SRR Score is a cumulative score of all robot vacuum features from our database. It doesn't represent the cleaning performance in real-world conditions, quality & reliability of the product.

iRobot Roomba 866 Video Review

Don't know which iRobot Roomba model to choose? Check out our Roomba comparison post, where we compared all the Roomba robot vacuums.