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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If you prioritize saving money, the KZ ZSN Pro is the less expensive choice and it's wired, offering a straightforward plug-and-play experience without worrying about battery life. However, for a higher cost, the Soundcore Space A40 offers wireless convenience, has a longer battery life with additional hours in the case, and supports wireless charging. The Soundcore also has an app with customizable EQ settings and active noise cancelling for a more personalized and quiet listening experience. If you exercise or travel frequently, the Soundcore's sweatproof certification and better noise isolation may justify the extra cost. 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 KZ ZSN Pro
- Good for TV and video
Advantages of the Soundcore Space A40
- Very good for air travel
Key differences
Gaming
6.0
4.9
The KZ ZSN Pro is only fair for gaming, while the Soundcore Space A40 is poor.
Phone Calls
3.1
4.8
The Soundcore Space A40 and KZ ZSN Pro are both poor for phone calls, though the Soundcore Space A40 is somewhat better.
TV and Video
7.4
5.3
The KZ ZSN Pro is good for TV and video, while the Soundcore Space A40 is poor.
Noise Reduction
5.3
9.1
The Soundcore Space A40 is excellent for noise reduction, while the KZ ZSN Pro is poor.
Battery
N/A
8.0 Hours
The KZ ZSN Pro does not have a battery. The Soundcore Space A40 has 8 hours of battery life.
Cost
$21
$80
$0
$20
$40
$60
$80
$100
The KZ ZSN Pro has a price of $21 and the Soundcore Space A40 costs $80.
Build Quality
9.0
8.5
The KZ ZSN Pro has excellent build quality, while the Soundcore Space A40 has very good build quality.
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Key similarities
Music
7.7
7.7
The KZ ZSN Pro and Soundcore Space A40 are both good for music.
Podcasts and Audiobooks
4.9
4.9
The Soundcore Space A40 and KZ ZSN Pro are both poor for podcasts and audiobooks.
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How the KZ ZSN Pro and the Soundcore Space A40 compare to other earbuds and headphones
Spec Comparison
 |  | |
| KZ ZSN Pro | Soundcore Space A40 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$21 | $80 | ||
Brand | |||
Brand | KZ | Soundcore | |
Release Date | |||
Release Date | March 1, 2019 | August 1, 2022 | |
Form Factor | |||
Form Factor | Earbuds | Earbuds | |
Connectivity | |||
Connectivity | Wired | Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 7.8/10 | 7.8/10 | |
Phone Calls Score | |||
Phone Calls Score | 3.2/10 | 4.9/10 | |
Gaming Score | |||
Gaming Score | 6/10 | 5/10 | |
TV and Video Score | |||
TV and Video Score | 7.5/10 | 5.4/10 | |
Exercise Score | |||
Exercise Score | 4.3/10 | 6.2/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | N/A | 8 Hours | |
Wireless charging | |||
Wireless charging | N/A | Yes | |
Charging time | |||
Charging time | N/A | 0.8 Hours | |
Bluetooth version | |||
Bluetooth version | N/A | 5.2 | |
Case Battery Life | |||
Case Battery Life | N/A | 32 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | Yes | |
Noise Reduction Score | |||
Noise Reduction Score | 5.3/10 | 9.1/10 | |
Android App | |||
Android App | N/A | Yes | |
iOS App | |||
iOS App | N/A | Yes | |
Mic Quality | |||
Mic Quality | N/A | 6/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 9/10 | 8.5/10 | |
Comfort score | |||
Comfort score | 7.6/10 | 7.6/10 | |
Size | |||
Size | Large | Small | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 7 Grams | 4 Grams | |
Microphone style | |||
Microphone style | N/A | Integrated | |
Shopping
KZ ZSN Pro
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Dig into reviews and images
PrimeAudio
David Becker | 2019
"Undoubtedly the focus and the star of the show, the ZSN Pro’s bass is big, bold and bangin’. The amount of gusto in the low end should satisfy anyone who likes a large lick of bass and even certified bassheads will probably get a kick out of this."
Soundcore Space A40
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Sound Guys
Sam Smart | May 2023
"The Anker Soundcore Space A40 is an excellent deal if you want affordable noise canceling earbuds with great sound. The baseline frequency response is enjoyable, and the many EQ presets to choose from plus the ability to customize your sound profile makes it good for pretty much anyone. The noise canceling is quite good, and the many ear tips to choose from ensure a good fit for the noise canceling and isolation to do its job."
Get a great deal on the KZ ZSN Pro or the Soundcore Space A40
About Soundcore
Soundcore is a sub-brand belonging to Anker Innovations. Starting in 2014, initially marketing wireless, Bluetooth, speakers, Anker now offers an array of, budget-friendly, wireless earbuds and headphones that directly compete, especially in the Active Noise Canceling field, with other brands several times as expensive.
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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.
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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.
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Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
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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.
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