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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·
If you're on a tight budget and mainly need headphones for wired listening with good build quality, the KZ ZSN Pro may suit you, although they have poorer microphone quality and less versatility without wireless capability. The Sennheiser Momentum True Wireless 4, while more expensive, offers a high-quality wireless experience, better sound, and active noise cancelling, making them more suitable for a variety of environments including calls, meetings, and travel. They're also optimized for both Android and Apple devices, have an app equalizer for sound customization, and longer battery life which can be essential for all-day use and convenience. 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
- The KZ ZSN Pro has no clear advantages over the Sennheiser Momentum True Wireless 4.
Advantages of the Sennheiser Momentum True Wireless 4
- Good for phone calls
- Excellent for gaming
- Very good for TV and video
- Very good for exercise
- Very good for air travel
- Very good for podcasts and audiobooks
Key differences
Gaming
6.0
9.1
The Sennheiser Momentum True Wireless 4 is excellent for gaming, while the KZ ZSN Pro is only fair.
Phone Calls
3.1
7.2
The Sennheiser Momentum True Wireless 4 is good for phone calls, while the KZ ZSN Pro is poor.
Podcasts and Audiobooks
4.9
8.1
The Sennheiser Momentum True Wireless 4 is very good for podcasts and audiobooks, while the KZ ZSN Pro is poor.
TV and Video
7.4
8.0
The Sennheiser Momentum True Wireless 4 is very good for TV and video, while the KZ ZSN Pro is good.
Noise Reduction
5.3
8.3
The Sennheiser Momentum True Wireless 4 is very good for noise reduction, while the KZ ZSN Pro is poor.
Battery
N/A
7.5 Hours
The KZ ZSN Pro does not have a battery. The Sennheiser Momentum True Wireless 4 has 7.5 hours of battery life.
Cost
$21
$300
$0
$100
$200
$300
$400
The KZ ZSN Pro has a price of $21 and the Sennheiser Momentum True Wireless 4 costs $300.
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Key similarities
Music
7.7
7.5
The KZ ZSN Pro and Sennheiser Momentum True Wireless 4 are both good for music.
Build Quality
9.0
8.9
Although they have very similar scores, PerfectRec considers KZ ZSN Pro to have excellent build quality, while the Sennheiser Momentum True Wireless 4 has very good build quality.
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How the KZ ZSN Pro and the Sennheiser Momentum True Wireless 4 compare to other earbuds and headphones
Spec Comparison
 |  | |
| KZ ZSN Pro | Sennheiser Momentum True Wireless 4 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$21 | $300 | ||
Brand | |||
Brand | KZ | Sennheiser | |
Release Date | |||
Release Date | March 1, 2019 | March 1, 2024 | |
Form Factor | |||
Form Factor | Earbuds | Earbuds | |
Connectivity | |||
Connectivity | Wired | Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 7.8/10 | 7.5/10 | |
Phone Calls Score | |||
Phone Calls Score | 3.2/10 | 7.2/10 | |
Gaming Score | |||
Gaming Score | 6/10 | 9.1/10 | |
TV and Video Score | |||
TV and Video Score | 7.5/10 | 8.1/10 | |
Exercise Score | |||
Exercise Score | 4.3/10 | 8.3/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | N/A | 7.5 Hours | |
Wireless charging | |||
Wireless charging | N/A | Yes | |
Charging time | |||
Charging time | N/A | 2 Hours | |
Bluetooth version | |||
Bluetooth version | N/A | 5.4 | |
Case Battery Life | |||
Case Battery Life | N/A | 30 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | Yes | |
Noise Reduction Score | |||
Noise Reduction Score | 5.3/10 | 8.4/10 | |
Virtual Surround | |||
Virtual Surround | N/A | No | |
Android App | |||
Android App | N/A | Yes | |
iOS App | |||
iOS App | N/A | Yes | |
Mic Quality | |||
Mic Quality | N/A | 8.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 9/10 | 8.9/10 | |
Comfort score | |||
Comfort score | 7.6/10 | 7.6/10 | |
Size | |||
Size | Large | Medium | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 7 Grams | 5.8 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."
Sennheiser Momentum True Wireless 4
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Dig into reviews and images
What HiFi
Andy Madden | January 2024
"It’s fair to say our brief time with the Sennheiser Momentum True Wireless 4 was a generally positive one. Comfort levels seem similar to what we have experienced before and the general flavour of sound was to our liking although we need to get a pair in to test and put up against the big rivals at the money from Bose and Sony. It could be an interesting contest."
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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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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.
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About the Earbuds or Headphones team
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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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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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