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Etymotic ER4SR (2015)
See Top Ranked Canal Earphones

Etymotic ER4 (2015) vs KZ ZS3

Analysis:

The KZ ZS3 makes for a good, if unremarkable, Canal Earphone for people with a $11 budget.

The Etymotic ER4SR (2015), however, is merely mediocre at its $299 asking price, when compared to similarly priced products, and won't satisfy the needs of most people.

In either case, we suggest that you first take a look at some other options at the $11 and $260 price points before committing to one of these - it's likely that you'll be able to find some better alternatives.

If you're still interested in learning more about the KZ ZS3 and Etymotic ER4SR (2015), however, we wrote a summary of what we could find about them:

The reviewers at Head-fi have featured the KZ ZS3 in their KZ-ZS3 Hifi High-End 3.5mm In-Ear Earphone Headphones Earpiece Original Headset Bass Earbuds With Microphone review roundup. However, it fell short of making it to the top of their list.

Returning to the Etymotic ER4SR (2015), SoundGuys, a source that's known for its high-quality in-depth testing, has great things to say about it. In fact, it was named its "Best Sound" in its "Best earbuds of 2020" roundup, which is quite a feat.

We conducted an analysis of all of the review data that we could find on these two products. First, we focused on sources that tested and rated both of them, like Head-fi, and learned that they all showed a preference for the Etymotic ER4SR (2015).

Then we took a look at the highest review scores that these two Canal Earphones received. We found that the KZ ZS3 managed to earn a rating of 9 from Head-fi, whereas the Etymotic ER4SR (2015) got its highest, 10, score from reviewers at Head-fi.

Lastly, we averaged out all of the reviews scores that we could find on these two products and compared them to other Canal Earphones on the market. We learned that both of them performed far better than most of their competitors - the overall review average earned by Canal Earphones being 7.4 out of 10, whereas the KZ ZS3 and Etymotic ER4SR (2015) managed averages of 9.0 and 8.4 points, respectively.

Due to the difference in their prices, however, it's important to keep in mind that a direct KZ ZS3 vs. Etymotic ER4SR (2015) comparison might not be entirely fair - some sources don't take value for money into account when assigning their scores and therefore have a tendency to rate more premium products better.

Comparison of expert ratings
Highly Recommended
Recommended
Mentioned
Not Mentioned
SoundGuys
PCmag
Head-fi
What Hi-Fi?
TrustedReviews
Digitaltrends
Reddit
Tech. Specs Comparison
Etymotic ER4SR (2015)
$299
KZ ZS3
$13
Higher than average expert review score
7.4
Overall Avg. for Canal Earphones
8.4
Avg. Review Score
Score
Significantly higher than average expert review score
7.4
Overall Avg. for Canal Earphones
9.0
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: a month ago
Recommendations
No Data

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