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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·
The KZ ZSN Pro X earbuds are more budget-friendly and offer a good overall sound with a very good build quality but require a wired connection and have poor mic quality, making them less suitable for calls or gaming. On the other hand, the Sennheiser Momentum Sport provides very good sound, excellent build quality, superior mic performance, and active noise cancelling, making them versatile for various activities like exercise, travel, and calls. The Sennheiser also supports wireless operation with features like a heart rate monitor and app integration, but it comes at a premium price. If you prioritize high-quality sound, versatile use, and wireless convenience, go for the Sennheiser Momentum Sport; if you're looking for affordability and can compromise on features, the KZ ZSN Pro X could be suitable. 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 X
- The KZ ZSN Pro X has no clear advantages over the Sennheiser Momentum Sport.
Advantages of the Sennheiser Momentum Sport
- Good for phone calls
- Very good for gaming
- Very good for exercise
- Very good for air travel
- Good for podcasts and audiobooks
Key differences
Gaming
5.9
8.8
The Sennheiser Momentum Sport is very good for gaming, while the KZ ZSN Pro X is poor.
Phone Calls
3.1
7.0
The Sennheiser Momentum Sport is good for phone calls, while the KZ ZSN Pro X is poor.
Podcasts and Audiobooks
4.7
7.8
The Sennheiser Momentum Sport is good for podcasts and audiobooks, while the KZ ZSN Pro X is poor.
Noise Reduction
6.0
8.0
The Sennheiser Momentum Sport is very good for noise reduction, while the KZ ZSN Pro X is only fair.
Battery
N/A
6.0 Hours
The KZ ZSN Pro X does not have a battery. The Sennheiser Momentum Sport has 6 hours of battery life.
Cost
$22
$330
$0
$100
$200
$300
$400
The KZ ZSN Pro X has a price of $22 and the Sennheiser Momentum Sport costs $330.
Build Quality
8.5
9.0
The Sennheiser Momentum Sport has excellent build quality, while the KZ ZSN Pro X has very good build quality.
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Key similarities
Music
7.0
7.5
The Sennheiser Momentum Sport and KZ ZSN Pro X are both good for music.
TV and Video
7.3
7.8
The Sennheiser Momentum Sport and KZ ZSN Pro X are both good for TV and video.
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How the KZ ZSN Pro X and the Sennheiser Momentum Sport compare to other earbuds and headphones
Spec Comparison
 |  | |
| KZ ZSN Pro X | Sennheiser Momentum Sport |
GENERAL | |||
|---|---|---|---|
| Price | |||
$22 | $330 | ||
Brand | |||
Brand | KZ | Sennheiser | |
Release Date | |||
Release Date | June 1, 2020 | March 1, 2024 | |
Form Factor | |||
Form Factor | Earbuds | Earbuds | |
Connectivity | |||
Connectivity | Wired | Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 7/10 | 7.5/10 | |
Phone Calls Score | |||
Phone Calls Score | 3.1/10 | 7/10 | |
Gaming Score | |||
Gaming Score | 6/10 | 8.9/10 | |
TV and Video Score | |||
TV and Video Score | 7.3/10 | 7.8/10 | |
Exercise Score | |||
Exercise Score | 4.2/10 | 8.5/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | N/A | 6 Hours | |
Wireless charging | |||
Wireless charging | N/A | Yes | |
Charging time | |||
Charging time | N/A | 1.5 Hours | |
Bluetooth version | |||
Bluetooth version | N/A | 5.4 | |
Case Battery Life | |||
Case Battery Life | N/A | 24 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | Yes | |
Noise Reduction Score | |||
Noise Reduction Score | 6/10 | 8/10 | |
Virtual Surround | |||
Virtual Surround | No | No | |
Android App | |||
Android App | N/A | Yes | |
iOS App | |||
iOS App | N/A | Yes | |
Mic Quality | |||
Mic Quality | 2.5/10 | 8.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 9/10 | |
Comfort score | |||
Comfort score | 7/10 | 7.6/10 | |
Size | |||
Size | Large | Large | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 27 Grams | 6.8 Grams | |
Microphone style | |||
Microphone style | N/A | Integrated | |
Shopping
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."
Sennheiser Momentum Sport
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Tech Radar
Amelia Schwanke | January 2024
"We hadn't been expecting a new pair of dedicated sports buds but the surprise was nonetheless exciting. I got to try out the new buds at CES 2024 and while they have stayed true to delivering that "signature" Sennheiser sound, with a wide soundstage and strong sense of detail, it’s the extra wearable tech inside them that stands out to me against the best workout headphones."
Get a great deal on the KZ ZSN Pro X or the Sennheiser Momentum Sport
About Sennheiser
A family-owned company, Sennheiser is a German, high fidelity, audio equipment manufacturer founded in 1945. Their consumer audio division is now owned by the Swiss hearing aid and cochlear implant manufacturer Sonova. Sennheiser offers a wide variety of, very high quality, audio equipment solutions, from headphones to earbuds, full sets of monitoring speakers, amplifiers and microphones. They also make what is widely regarded as the best, and most expensive, headphones in existence, the HE-1 Orpheus, costing a whopping $59,000 dollars.
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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 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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