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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 10, 2024·
If you prioritize wireless convenience and features like active noise cancelling, sweat and dust resistance, and a comfortable fit, the Bowers and Wilkins Pi5 S2 is suitable, especially for air travel and exercise. However, they're not ideal for gaming or watching TV due to poor latency. On the other hand, KZ ZSN Pro X earbuds are budget-friendly, offer very good sound, and come with a detachable cable but lack wireless capability, active noise cancelling, and features like optimized app control. They provide a fair noise isolation and could be more suitable for wired listening experiences like TV and gaming due to no latency issues. 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 Bowers and Wilkins Pi5 S2
- Very good for air travel
Advantages of the KZ ZSN Pro X
- Good for music
- Good for TV and video
Key differences
Gaming
5.3
5.9
The KZ ZSN Pro X and Bowers and Wilkins Pi5 S2 are both poor for gaming, though the KZ ZSN Pro X is somewhat better.
Phone Calls
5.0
3.1
The Bowers and Wilkins Pi5 S2 and KZ ZSN Pro X are both poor for phone calls, though the Bowers and Wilkins Pi5 S2 is somewhat better.
Podcasts and Audiobooks
5.6
4.7
The Bowers and Wilkins Pi5 S2 and KZ ZSN Pro X are both poor for podcasts and audiobooks, though the Bowers and Wilkins Pi5 S2 is somewhat better.
TV and Video
5.6
7.3
The KZ ZSN Pro X is good for TV and video, while the Bowers and Wilkins Pi5 S2 is poor.
Noise Reduction
8.3
6.0
The Bowers and Wilkins Pi5 S2 is very good for noise reduction, while the KZ ZSN Pro X is only fair.
Battery
5.0 Hours
N/A
The Bowers and Wilkins Pi5 S2 has 5 hours of battery life. The KZ ZSN Pro X does not have a battery.
Cost
$149
$24
$0
$50
$100
$150
$200
The Bowers and Wilkins Pi5 S2 has a price of $149 and the KZ ZSN Pro X costs $24.
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Key similarities
Music
6.7
7.0
Although they have very similar scores, PerfectRec considers KZ ZSN Pro X to be good for music, while the Bowers and Wilkins Pi5 S2 is only fair.
Build Quality
8.9
8.5
The Bowers and Wilkins Pi5 S2 and KZ ZSN Pro X both have very good build quality.
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How the Bowers and Wilkins Pi5 S2 and the KZ ZSN Pro X compare to other earbuds and headphones
Spec Comparison
 |  | |
| Bowers and Wilkins Pi5 S2 | KZ ZSN Pro X |
GENERAL | |||
|---|---|---|---|
| Price | |||
$149 | $24 | ||
Brand | |||
Brand | Bowers and Wilkins | KZ | |
Release Date | |||
Release Date | January 1, 2023 | June 1, 2020 | |
Form Factor | |||
Form Factor | Earbuds | Earbuds | |
Connectivity | |||
Connectivity | Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 6.8/10 | 7/10 | |
Phone Calls Score | |||
Phone Calls Score | 5.1/10 | 3.1/10 | |
Gaming Score | |||
Gaming Score | 5.3/10 | 6/10 | |
TV and Video Score | |||
TV and Video Score | 5.6/10 | 7.3/10 | |
Exercise Score | |||
Exercise Score | 6.3/10 | 4.2/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 5 Hours | N/A | |
Wireless charging | |||
Wireless charging | Yes | N/A | |
Charging time | |||
Charging time | 0.75 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5 | N/A | |
Case Battery Life | |||
Case Battery Life | 19 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | Yes | No | |
Noise Reduction Score | |||
Noise Reduction Score | 8.4/10 | 6/10 | |
Virtual Surround | |||
Virtual Surround | No | No | |
Android App | |||
Android App | Yes | N/A | |
iOS App | |||
iOS App | Yes | N/A | |
Mic Quality | |||
Mic Quality | 6.5/10 | 2.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.9/10 | 8.5/10 | |
Comfort score | |||
Comfort score | 8/10 | 7/10 | |
Size | |||
Size | Large | Large | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 6 Grams | 27 Grams | |
Microphone style | |||
Microphone style | Integrated | N/A | |
Shopping
Bowers and Wilkins Pi5 S2
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Dig into reviews and images
Major HiFi
Chris Golembeski | January 2023
"Bowers and Wilkins isn’t looking to make an obscure, premium wireless bud catered specifically towards audiophiles. Instead, it seems apparent that they’re going for the crown: a cool and popular look, an easy and comfortable fit, and an engaging stage with a great balance that is perfectly suited for mainstream listeners and audiophiles alike."
KZ ZSN Pro X
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Dig into reviews and images
Soundguys
Jasper Lastoria | April 2023
"The KZ ZSN PRO X offers superb sound for very little money, like under $30 USD. It has some rough edges with a plastic seam on the cable that can rub on your ear, and the bud is a bit large. The tech isn't cutting edge, but new doesn't always equal better. You should try it."
Get a great deal on the Bowers and Wilkins Pi5 S2 or the KZ ZSN Pro X
About Bowers and Wilkins
Bowers and Wilkins is a British audio equipment manufacturer with a focus on innovation and product development. It was founded by a couple of real-life James Bonds, the co-founders John Bowers and Roy Wilkins, who met while working for MI6 during World War II. The company keeps being favored by enthusiasts due to their sound quality, craftsmanship and signature aesthetics.
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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
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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 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.
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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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