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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·
If you're on a budget, the KZ ZSN Pro X earbuds offer good sound quality and are much less expensive than the Sennheiser Momentum 4. They are wired, which might limit mobility but ensures no latency issues during TV or video use. However, their microphone and wireless capabilities are poor, so they're not ideal for calls, meetings, or gaming. The Sennheiser Momentum 4 headphones, while more costly, offer excellent overall sound quality, active noise canceling, long wireless battery life, and are more comfortable. They are better suited for immersive music experiences, frequent calls, and long gaming or TV sessions. The Sennheisers also have an app equalizer and are optimized for both Android and Apple devices, providing greater versatility and customization. If you prioritize sound quality, comfort, and wireless convenience over price, the Sennheiser Momentum 4 might be the better choice despite the higher 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 X
- The KZ ZSN Pro X has no clear advantages over the Sennheiser Momentum 4.
Advantages of the Sennheiser Momentum 4
- Excellent for gaming
- Very good for TV and video
- Very good for air travel
- Very good for podcasts and audiobooks
Key differences
Gaming
5.9
9.0
The Sennheiser Momentum 4 is excellent for gaming, while the KZ ZSN Pro X is poor.
Phone Calls
3.1
6.8
The Sennheiser Momentum 4 is only fair for phone calls, while the KZ ZSN Pro X is poor.
Podcasts and Audiobooks
4.7
8.2
The Sennheiser Momentum 4 is very good for podcasts and audiobooks, while the KZ ZSN Pro X is poor.
TV and Video
7.3
8.9
The Sennheiser Momentum 4 is very good for TV and video, while the KZ ZSN Pro X is good.
Noise Reduction
6.0
9.1
The Sennheiser Momentum 4 is excellent for noise reduction, while the KZ ZSN Pro X is only fair.
Battery
N/A
59.0 Hours
The KZ ZSN Pro X does not have a battery. The Sennheiser Momentum 4 has 59 hours of battery life.
Cost
$24
$250
$0
$50
$100
$150
$200
$250
$300
$350
The KZ ZSN Pro X has a price of $24 and the Sennheiser Momentum 4 costs $250.
Build Quality
8.5
9.0
The Sennheiser Momentum 4 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 4 and KZ ZSN Pro X are both good for music.
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How the KZ ZSN Pro X and the Sennheiser Momentum 4 compare to other earbuds and headphones
Spec Comparison
 |  | |
| KZ ZSN Pro X | Sennheiser Momentum 4 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$24 | $250 | ||
Brand | |||
Brand | KZ | Sennheiser | |
Release Date | |||
Release Date | June 1, 2020 | August 1, 2022 | |
Form Factor | |||
Form Factor | Earbuds | Headphones | |
Connectivity | |||
Connectivity | Wired | Wired + Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 7/10 | 7.5/10 | |
Phone Calls Score | |||
Phone Calls Score | 3.1/10 | 6.9/10 | |
Gaming Score | |||
Gaming Score | 6/10 | 9.1/10 | |
TV and Video Score | |||
TV and Video Score | 7.3/10 | 9/10 | |
Exercise Score | |||
Exercise Score | 4.2/10 | 6.4/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | N/A | 59 Hours | |
Wireless charging | |||
Wireless charging | N/A | No | |
Charging time | |||
Charging time | N/A | 2 Hours | |
Bluetooth version | |||
Bluetooth version | N/A | 5.2 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | Yes | |
Noise Reduction Score | |||
Noise Reduction Score | 6/10 | 9.1/10 | |
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 | 8/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 9/10 | |
Comfort score | |||
Comfort score | 7/10 | 8.4/10 | |
Size | |||
Size | Large | N/A | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 27 Grams | 294.8 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 4
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Sound Guys
Christian Thomas | January 2023
"If you're looking for a slightly more affordable set of ANC headphones in comparison to the Bose or Sony offerings: the Sennheiser MOMENTUM 4 Wireless is not a bad way to go. While its ANC is technically behind the other top-tier headphones, its sound quality is ahead of the pack—as is its battery life. Not bad for $350 USD."
Get a great deal on the KZ ZSN Pro X or the Sennheiser Momentum 4
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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