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Etymotic ER4SR (2015)
Etymotic ER2XR
See Top Ranked In-Ear Monitors

Etymotic ER4 (2015) vs Etymotic ER2XR

Analysis:

The Etymotic ER4SR (2015) and Etymotic ER2XR make for good, if unremarkable, In-Ear Monitors at their respective budgets.

With that said, while they both should serve reasonably well, you might want to look into other options at the $320 and $120 price points - it's likely that there are some better alternatives available.

If you want to learn more about the Etymotic ER4SR (2015) and the Etymotic ER2XR, however, we prepared a summary of the information that we have:

The Etymotic ER4SR (2015) was loved by reviewers at SoundGuys, a highly trusted source that performs reliable in-depth testing. It did great in its "Best earbuds of 2020" roundup where it was named its "Best Sound", which, in itself, makes it a product worth considering.

Taking a look at the Etymotic ER2XR, it got featured in roundups from two reliable sources that conduct their own testing - Head-fi and Wirecutter (NYTimes) - but it fell short of earning a top spot in either.

We examined all of the review data that we could find and first took a look at sources that reviewed both of them, like Head-fi, and found that they haven't shown a preference for either product.

Then we checked which sources liked these two In-Ear Monitors best and found that the Etymotic ER4SR (2015) got its highest, 10, review score from reviewers at Head-fi, whereas the Etymotic ER2XR earned its best score of 10 from Head-fi.

Lastly, we averaged out all of their review ratings and observed that the Etymotic ER4SR (2015), with its 8.4 average, performed considerably better than most In-Ear Monitors - the mean score for the product category being 7.7 out of 10 - while the Etymotic ER2XR managed an average of 10.0.

There's one caveat here - it might not be entirely justifiable to do a direct Etymotic ER4SR (2015) vs. Etymotic ER2XR review average comparison since they aren't priced the same and more expensive products tend to get higher review scores from some sources.

Comparison of expert ratings
Highly Recommended
Recommended
Mentioned
Not Mentioned
SoundGuys
PCmag
Wirecutter (NYTimes)
Head-fi
What Hi-Fi?
TrustedReviews
Digitaltrends
Reddit
Tech. Specs Comparison
Etymotic ER4SR (2015)
$299
Etymotic ER2XR
$100
Higher than average expert review score
7.8
Overall Avg. for In-Ear Monitors
8.4
Avg. Review Score
Score
Significantly higher than average expert review score
7.8
Overall Avg. for In-Ear Monitors
10.0
Avg. Review Score
Score
Recommended by trusted experts
SoundGuys
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Sound
in “Best earbuds of 2020” 
Last updated: 25 days ago
Recommended by trusted experts
Wirecutter (NYTimes)
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “The Best Earbuds” 
Last updated: 5 Jun 2020

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