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Roborock S4
Roborock S6
See Top Ranked Robot Vacuums

Roborock S4 vs Roborock S6

Analysis:

The Roborock S4 was loved by reviewers at Wirecutter (NYTimes), a highly trusted source that performs reliable in-depth testing. It did great in its "The Best Robot Vacuums" roundup where it was named its "Upgrade pick", which, in itself, makes it a product worth considering.

Moving on to the Roborock S6: it has performed really well in a handful of roundups done by reliable sources that perform their own objective testing, like The Ambient, Android Central, Smart Robot Reviews, and TrustedReviews - it was awarded the "Best robot vacuum cleaner overall" title by The Ambient, "Best Battery Life" by Android Central, and "Best Mid-Range" by Smart Robot Reviews, which marks it as a worthy candidate.

Out of the sources that tested and rated both of these Robot Vacuums, Modern Castle preferred the Roborock S4, whereas reviewers at Pocket-lint and TechHive liked the Roborock S6 better. The Ambient gave them identical review scores.

We also took a look at which sources liked these products best - the highest Roborock S4 rating came from Modern Castle, whereas the Roborock S6 most impressed reviewers at Pocket-lint; they earned scores of 9.6 and 10, respectively.

Lastly, we averaged out all of the reviews scores that we could find on these two products and compared them to other Robot Vacuums on the market. We learned that both of them performed far better than most of their competitors - the overall review average earned by Robot Vacuums being 7.2 out of 10, whereas the Roborock S4 and Roborock S6 managed averages of 8.7 and 9.0 points, respectively.

Due to the difference in their prices, however, it's important to keep in mind that a direct Roborock S4 vs. Roborock S6 comparison might not be entirely fair - some sources don't take value for money into account when assigning their scores and therefore have a tendency to rate more premium products better.

Comparison of expert ratings
Highly Recommended
Recommended
Mentioned
Not Mentioned
Wirecutter (NYTimes)
Smart Robot Reviews
Modern Castle
The Ambient
Techradar
TrustedReviews
Expert Reviews
Android Central
Robotbox
Pocket-lint
Tech. Specs Comparison
Roborock S4
Roborock S6
$649
Boundary markers
Yes
No
D-shape
No
No
HEPA
No
No
Mapping
Yes
Yes
Mopping
No
Yes
Operating Time
150 (min)
180 (min)
Scheduling
Yes
Yes
UV sterilization
No
No
Higher than average expert review score
7.3
Overall Avg. for Robot Vacuums
8.7
Avg. Review Score
Score
Significantly higher than average expert review score
Recommended by trusted experts
Wirecutter (NYTimes)
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Also great
in “The Best Vacuum Cleaners” 
Last updated: 23 days ago
Smart Robot Reviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “Roborock S4 vs. S5 Max: Which One To Buy” 
Wirecutter (NYTimes)
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Upgrade pick
in “The Best Robot Vacuums” 
Last updated: 19 May 2020
Smart Robot Reviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “Compare Roborock Models: E4, S4, S5, S5 Max, S6, S6 MaxV & Xiaowa Series” 
Recommended by trusted experts
Android Central
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “Why Roborock is the best robot vacuum maker you've never heard of” 
Last updated: 6 Nov 2019
Smart Robot Reviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “Best Robot Vacuums for Pet Hair of 2020” 
TrustedReviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Ranked #3 out of 7
in “Best robot vacuum cleaner 2020 for carpets, hardwood and mopping” 
Last updated: 27 Jan 2020
The Spruce
Depth of
analysis
Yes
In-house
Testing
Best Quiet Operation
in “The 8 Best Robotic Vacuums of 2020” 
Smart Robot Reviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “Top 10 Best Robot Vacuum Cleaners For Pet Hair” 
Android Central
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Battery Life
in “Best Robot Vacuums for Pet Hair in 2020” 
Last updated: 21 days ago
Smart Robot Reviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “Roborock S5 vs S6 Side-By-Side Detailed Comparison” 
Android Central
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Battery Life
in “Best Robot Vacuums in 2020: Top 10 models ranked” 
Last updated: 22 days ago
Smart Robot Reviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “Is the Roborock S6 Better Than The Xiaomi MiJia 1S? Comparison Chart” 
Android Central
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Battery Life
in “Best Roborock Vacuums in 2020” 
Last updated: 12 Jan 2020
Smart Robot Reviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “Viomi V2 vs Roborock S6: the Differences Explained” 
Smart Robot Reviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “Roborock S6 vs. Roomba i7+: The Differences Explained” 
Smart Robot Reviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Runner Up
in “Roborock S5 Max Review: Better Mopping Experience at a Reasonable Price” 
Smart Robot Reviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Mid-Range
in “Top 10 Best Robot Vacuums for Carpet 2019” 
Smart Robot Reviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Rated 9.0 out of 10
in “Top 10 Flagship Robot Vacuum Cleaners of 2019” 
Smart Robot Reviews
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “Compare Roborock Models: E4, S4, S5, S5 Max, S6, S6 MaxV & Xiaowa Series” 

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