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Cougar Revenger S (2017) vs Roccat Kain 20x Aimo (2019)
Cougar Revenger S (2017)

The Cougar Revenger S (2017) is a reasonably good Gaming Mouse for people with about $70 to spend.
The Roccat Kain 202 Aimo (2019), 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 $70 budget - it's likely that you'll find some better alternatives.
However, if you nonetheless want to learn more about the Cougar Revenger S (2017) and Roccat Kain 202 Aimo (2019), here's a summary of what we know:
The Cougar Revenger S (2017) was loved by reviewers at PCmag, a highly trusted source that performs reliable in-depth testing. It did great in its "The Best Mice for Esports in 2020" roundup where it was named its "Best for Budget Buyers", which, in itself, makes it a product worth considering.
Taking a look at the Roccat Kain 202 Aimo (2019), it got featured in roundups from two reliable sources that conduct their own testing - Techradar and PCmag - but it fell short of earning a top spot in either.
We also performed a thorough Cougar Revenger S (2017) vs. Roccat Kain 202 Aimo (2019) review score analysis - it turns out that all of the sources that have tested both Gaming Mice, including PCmag, preferred the Cougar Revenger S (2017) over the Roccat Kain 202 Aimo (2019).
Out of all the sources that reviewed them, the Cougar Revenger S (2017) turned out to be most loved by kitguru.net, which gave it a score of 8.5, whereas the Roccat Kain 202 Aimo (2019) got its highest, 8, rating from reviewers at Techradar.
Lastly, we compared their review averages and found that the Cougar Revenger S (2017) did much better than the majority of its competitors, with an average review score of 8.3 out of 10, compared to the 7.5 overall average of Gaming Mice in general, whereas the Roccat Kain 202 Aimo (2019) hasn't managed to perform quite as well, with an average rating of 7.5.
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