A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Company ProductName Specs
Company ProductName Specs
What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If you prioritize sound quality and noise isolation for activities like commuting or being in noisy environments, the Etymotic ER4XR is a more suitable choice with better noise isolation. However, consider that they are more expensive, have a closed design, and are more invasive due to their earbud style, which may not be as comfortable for everyone. The Koss Porta Pro, on the other hand, offers good sound quality at a budget-friendly price, and its open design may be more comfortable for long listening sessions. But they provide less noise isolation, making them less ideal for noisy settings. Also, if portability is important to you, Koss Porta Pro headphones are foldable and come with a carrying case, making them easier to transport. Give Feedback
this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the Etymotic ER4XR
- Good for podcasts and audiobooks
Advantages of the Koss Porta Pro
- The Koss Porta Pro has no clear advantages over the Etymotic ER4XR.
Key differences
Noise Reduction
9.1
2.5
The Etymotic ER4XR is excellent for noise reduction, while the Koss Porta Pro is poor.
Cost
$234
$49
$0
$50
$100
$150
$200
$250
$300
$350
The Etymotic ER4XR has a price of $234 and the Koss Porta Pro costs $49.
Build Quality
9.0
6.0
The Etymotic ER4XR has excellent build quality, while the Koss Porta Pro has only fair build quality.
Let Us Help Find Your Perfect Headphones
Find your new headphones
Key similarities
Music
8.0
8.2
The Koss Porta Pro and Etymotic ER4XR are both very good for music.
Gaming
6.2
6.4
The Koss Porta Pro and Etymotic ER4XR are both only fair for gaming.
Phone Calls
4.7
4.3
The Etymotic ER4XR and Koss Porta Pro are both poor for phone calls.
Podcasts and Audiobooks
7.3
6.8
Although they have very similar scores, PerfectRec considers Etymotic ER4XR to be good for podcasts and audiobooks, while the Koss Porta Pro is only fair.
TV and Video
7.4
7.6
The Koss Porta Pro and Etymotic ER4XR are both good for TV and video.
Give feedback
We’re constantly working to improve.
How the Etymotic ER4XR and the Koss Porta Pro compare to other earbuds and headphones
Spec Comparison
 |  | |
| Etymotic ER4XR | Koss Porta Pro |
GENERAL | |||
|---|---|---|---|
| Price | |||
$234 | $49 | ||
Brand | |||
Brand | Etymotic | Koss | |
Release Date | |||
Release Date | June 1, 2016 | January 1, 1984 | |
Form Factor | |||
Form Factor | Earbuds | Headphones | |
Connectivity | |||
Connectivity | Wired | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 8/10 | 8.3/10 | |
Phone Calls Score | |||
Phone Calls Score | 4.8/10 | 4.3/10 | |
Gaming Score | |||
Gaming Score | 6.3/10 | 6.4/10 | |
TV and Video Score | |||
TV and Video Score | 7.4/10 | 7.7/10 | |
Exercise Score | |||
Exercise Score | 4.1/10 | 4.2/10 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | No | |
Noise Reduction Score | |||
Noise Reduction Score | 9.1/10 | 2.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 9/10 | 6/10 | |
Comfort score | |||
Comfort score | 6/10 | 7/10 | |
Size | |||
Size | Small | N/A | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 4 Grams | 63.5 Grams | |
Waterproof Rating | |||
Waterproof Rating | 0 | 0 | |
Shopping
Etymotic ER4XR
See more
Dig into reviews and images
What HiFi?
What HiFi? | May 2015
"The Etymotic ER4XRs' top qualities are the detail and definition of the midrange, rewarding the closest listening. While the soundstage is large rather than gigantic, the excellent separation and spatial precision mean you can dive deep into music just as much as when wearing a pair of full-size open-backed headphones."
Koss Porta Pro
See more
Dig into reviews and images
Headphones.com
Sebastian Taboada | February 2022
"It’s clear to see why these have been such a popular choice amongst listeners for nearly four decades. It’s a charming pair of headphones that delivers a truly enjoyable listening experience and one that I think punches well above its weight."
Get a great deal on the Etymotic ER4XR or the Koss Porta Pro
About Etymotic
Etymotic Research is an American based research, development and manufacturing company founded in 1983. They invented the first insert earphones that were used for the diagnosis and research of hearing loss and other auditory disorders. They went on to pioneer the market of high fidelity, isolating, in-ear earphones.
About Koss
Koss is an American headphone manufacturer established in 1953. In 1958, they created the first set of stereophones, that is headphones with stereo sound, and in 1984 they released the world-famous Porta Pro, a set of on-ear headphones that has remained essentially unchanged for more than 30 years and that is still made, sold and loved by many audio enthusiasts around the world today.
Give feedback
We're constantly perfecting our model
Earbuds or Headphones guides you might be interested in
More comparisons for you
Compare Etymotic ER4XR vs. Sennheiser Accentum Plus
VS
Compare Etymotic ER4XR vs. Sony WF1000XM4
VS
Compare Etymotic ER4XR vs. Bose QuietComfort Ultra Earbuds
VS
Compare Koss Porta Pro vs. Audio Technica ATH M20X
VS
Compare Koss Porta Pro vs. Sennheiser CX300S
VS
Compare Koss Porta Pro vs. Sennheiser HD 400S
VS
FAQs
FAQs about earbuds and headphones
Why trust us
This information was produced and vetted by the PerfectRec earbuds & headphones team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest earbuds or headphones information and makes it digestible for you.
By the numbers
108
Earbuds and headphones evaluated
11,340
Earbuds and headphones stats compiled
15
Proprietary Earbuds and headphones ratings developed
122,900
Recommendations made
18,435
Consumer hours saved
About the Earbuds or Headphones team
Joe Golden, Ph.D
CEO and Earbuds and Headphones Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
Jason Lew
Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.
Chandradeep Chowdhury
Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
Luis Torres
Earbuds and Headphones Expert
Luis is a Mexico-based headphones expert. He’s been making headphone recommendations for five years and has close to 100 pairs in his personal collection.
Featured in
