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iRobot Roomba 866

iRobot Roomba 866
alaScore 88

32 reviews

Sep, 2019

alaTest has collected and analyzed 32 reviews of iRobot Roomba 866. The average rating for this product is 4.7/5, compared to an average rating of 4.2/5 for other products in the same category for all reviews. Comments about the reliability and design are generally positive. The size and usability also get good reviews, but some have doubts about the price.

usability, size, design, reliability


We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the iRobot Roomba 866 is awarded an overall alaScore™ of 88/100 = Very good quality.

Review analysis

(Based on 32 reviews)

Expert Reviews  

User Reviews  

Showing 5 review(s)

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Showing 1 - 5 of 5 Show Reviews: in English | in other languages (27)

Consumer review (

My best friend


I now have a new best friend! My floors are all wood with rugs. Charlie, goes over them without any trouble. It is like having a small toddler, into everything. By that I mean gets into all the corners. Small items like shoes etc I lift of the floor....

Oct, 2017

Consumer review (

Wish I'd discovered these earlier!


After reading the other reviews I decided to give this a shot, even though it felt pricey for what it was. We are a 2 cat 3 child household and the dirt and mess is never ending. Boy has this changed things in our house! In terms of efficiency, rubber...

Oct, 2017

Consumer review (



This wonderful Roomba isn't bothered at all by cat hair from our shorthaired cats. I used to have a 500 Series Roomba, and I'd have to clean the cat hair ends of the brushes TWICE in every room. This new 866 Roomba doesn't have any issues with cat...

Sep, 2017

Consumer review (

Replaced my trusty 530 - no regrets


I have owned a 530 for about 8 years and used it as the daily cleaner in our house all that time. I have replaced 2 batteries and a brush-head unit but whenever I looked at replacing him I was put off by the price and the fact that he was still...

Nov, 2016

Consumer review (



I just love him,so obedient and hard work ing .I find myself chatting to him..Really easy to use,runs all over then docks himself to MB then just press the button when charged and of he goes again,best investment ever thank you

Apr, 2016

Product Specifications

PRODUCT FEATURES: 4-room coverage 2 virtual walls Detects dirt Spot mode Self-charging home base Voice demonstration Light touch bumpers Lighthouse technology On-board scheduling


Product Type:Vacuum cleaner
Vacuum Cleaner Type:Robotic


Product Line:iRobot Roomba