Find the best product and price, effortlessly.
Discover deals on the best products
Cooler Master MM71x (2019) vs Cougar Revenger S (2017)
Cougar Revenger S (2017)

Both options make for good, if unremarkable, Gaming Mice at the $70 budget range. While they should serve reasonably well, you might want to look into some other options at that price point.
If you're still interested in learning more about the Cooler Master MM711 (2019) and Cougar Revenger S (2017), however, we wrote-up what we know about them:
The Cooler Master MM711 (2019) managed to earn a spot in roundups from two sources that are known for their trustworthy review methodology - GBAtemp and Wirecutter (NYTimes) - but fell short of making it to the top of their lists.
As for the Cougar Revenger S (2017), it was really well-received by reviewers at PCmag, a reliable source that's known for conducting its own, high-quality, in-depth testing. It performed great in its "The Best Mice for Esports in 2020" roundup and was named its "Best for Budget Buyers", which, on its own, makes it a product that warrants a closer look.
We tried doing a direct Cooler Master MM711 (2019) vs. Cougar Revenger S (2017) 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 Cooler Master MM711 (2019) most impressed the reviewers at GBAtemp, who gave it a score of 8.5, whereas the Cougar Revenger S (2017) did best in its kitguru.net review - it scored 8.5 points.
Finally, we also compared their review scores to the rest of their competition - the Cooler Master MM711 (2019) earned an average review score of 8.5 out of 10 points and the Cougar Revenger S (2017) received an average of 8.3, compared to the 7.5 average of Gaming Mice in general.
analysis
Testing
analysis
Testing

analysis
Testing
analysis
Testing

analysis
Testing