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Tenergy Otis
See Top Ranked Robot Vacuums

Tenergy Otis vs iLife A4s

Analysis:

The Tenergy Otis is a reasonably good Robot Vacuum for people with about $190 to spend.

The iLife A4s, by contrast, is quite unremarkable and doesn't manage to stand out in any way when compared to other products at that price point.

In either case, we suggest that you first check out a few other options at the $190 budget - it's likely that you'll find some better alternatives.

However, if you nonetheless want to learn more about the Tenergy Otis and iLife A4s, here's a summary of what we know:

The reviewers at Modern Castle have featured the Tenergy Otis in their Tenergy Otis Review roundup. However, it fell short of making it to the top of their list.

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 also performed a thorough Tenergy Otis vs. iLife A4s review score analysis - it turns out that all of the sources that have tested both Robot Vacuums, including Modern Castle, preferred the Tenergy Otis over the iLife A4s.

Out of all the sources that reviewed them, the Tenergy Otis turned out to be most loved by Modern Castle, which gave it a score of 9.3, whereas the iLife A4s got its highest, 9.1, rating from reviewers at Modern Castle.

Finally, we also compared their review scores to the rest of their competition - the Tenergy Otis earned an average review score of 9.3 out of 10 points and the iLife A4s received an average of 8.0, compared to the 7.2 average of Robot Vacuums in general.

Comparison of expert ratings
Highly Recommended
Recommended
Mentioned
Not Mentioned
TechGearLab
Wirecutter (NYTimes)
PCmag
Modern Castle
inews.co.uk
BestReviews
Robotbox
Tech. Specs Comparison
Tenergy Otis
$149
iLife A4s
$129
Boundary markers
No
No
D-shape
No
No
HEPA
Yes
Yes
Mapping
No
No
Mopping
No
No
Operating Time
90 (min)
100 (min)
Scheduling
Yes
Yes
UV sterilization
No
No
Significantly higher than average expert review score
7.3
Overall Avg. for Robot Vacuums
9.3
Avg. Review Score
Score
Higher than average expert review score
7.3
Overall Avg. for Robot Vacuums
8.0
Avg. Review Score
Score
Recommended by trusted experts
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

Find the best product and price, effortlessly.

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