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Dser RoboGeek 21T
See Top Ranked Robot Vacuums

Dser RoboGeek 20T & 21T vs iLife A4s

Analysis:

While the Dser RoboGeek 21T makes for a passable Robot Vacuum for its asking price, the iLife A4s simply doesn't make the cut and should be avoided by most people. In both cases, however, you might want to look at some better alternatives at the $260 budget range.

If you nevertheless want to learn more about the Dser RoboGeek 21T and the iLife A4s, however, we wrote a short summary of what we know about them:

No sources that do their own in-depth testing have considered the Dser RoboGeek 21T to be a good enough purchase for it to earn a sport in their Robot Vacuum roundups, which is typically a bad sign.

Moving on to the iLife A4s: it was unable to reach the very top of any roundups from sources that conduct reliable and unbiased testing. Nonetheless, it still managed to impress reviewers from a number of such sites, like Modern Castle, PCmag, TechGearLab, Wirecutter (NYTimes), and inews.co.uk, enough for them to include them on those lists.

We tried doing a direct Dser RoboGeek 21T vs. iLife A4s review score comparison but couldn't find any sources that tested both.

Next, we took a look at which sources liked them best and found that the Dser RoboGeek 21T most impressed the reviewers at KnowTechie, who gave it a score of 7, whereas the iLife A4s did best in its Modern Castle review - it scored 9.1 points.

Lastly, we averaged out all of their review data to compare them to their competitors. We found that the iLife A4s, with its 8.0 out of 10 points, got reviewed noticeably better than most of its competitors - the average Robot Vacuum score being 7.2 - whereas the Dser RoboGeek 21T performed worse, with an average of merely 7.0.

Comparison of expert ratings
Highly Recommended
Recommended
Mentioned
Not Mentioned
TechGearLab
Wirecutter (NYTimes)
PCmag
Modern Castle
inews.co.uk
KnowTechie
BestReviews
Robotbox
Tech. Specs Comparison
Dser RoboGeek 21T
$155
iLife A4s
$129
Boundary markers
Yes
No
D-shape
No
No
HEPA
No
Yes
Mapping
No
No
Mopping
No
No
Operating Time
100 (min)
100 (min)
Scheduling
Yes
Yes
UV sterilization
No
No
Has average expert review score
7.3
Overall Avg. for Robot Vacuums
7.0
Avg. Review Score
Score
Higher than average expert review score
7.3
Overall Avg. for Robot Vacuums
8.0
Avg. Review Score
Score
Recommendations
No Data
Recommended by trusted experts
Wirecutter (NYTimes)
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “The Best Robot Vacuums” 
Last updated: 11 Jan 2021
PCmag
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “The Best Robot Vacuums for 2021” 
Last updated: 5 Jan 2021

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