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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
The 7hz Timeless earbuds have a planar driver, which may offer a distinctive sound quality that audiophiles often appreciate, with excellent music reproduction. However, they lack a microphone, wireless capabilities, and active noise cancelling. If you prioritize sound when listening to music and don't need wireless connectivity or a mic, go for the Timeless. If you're looking for versatility, comfort, and features like noise cancellation for travel, the Momentum 4 might be the better choice. 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 7hz Timeless
- Very good for music
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
Music
8.6
7.5
The 7hz Timeless is very good for music, while the Sennheiser Momentum 4 is good.
Gaming
6.6
9.0
The Sennheiser Momentum 4 is excellent for gaming, while the 7hz Timeless is only fair.
Phone Calls
4.3
6.8
The Sennheiser Momentum 4 is only fair for phone calls, while the 7hz Timeless is poor.
Podcasts and Audiobooks
6.8
8.2
The Sennheiser Momentum 4 is very good for podcasts and audiobooks, while the 7hz Timeless is only fair.
TV and Video
7.8
8.9
The Sennheiser Momentum 4 is very good for TV and video, while the 7hz Timeless is good.
Noise Reduction
5.3
9.1
The Sennheiser Momentum 4 is excellent for noise reduction, while the 7hz Timeless is poor.
Battery
N/A
59.0 Hours
The 7hz Timeless does not have a battery. The Sennheiser Momentum 4 has 59 hours of battery life.
Cost
$200
$250
$100
$150
$200
$250
$300
$350
The 7hz Timeless has a price of $200 and the Sennheiser Momentum 4 costs $250.
Build Quality
8.5
9.0
The Sennheiser Momentum 4 has excellent build quality, while the 7hz Timeless has very good build quality.
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How the 7hz Timeless and the Sennheiser Momentum 4 compare to other earbuds and headphones
Spec Comparison
 |  | |
| 7hz Timeless | Sennheiser Momentum 4 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$200 | $250 | ||
Brand | |||
Brand | 7hz | Sennheiser | |
Release Date | |||
Release Date | August 1, 2021 | August 1, 2022 | |
Form Factor | |||
Form Factor | Earbuds | Headphones | |
Connectivity | |||
Connectivity | Wired | Wired + Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 8.6/10 | 7.5/10 | |
Phone Calls Score | |||
Phone Calls Score | 4.3/10 | 6.9/10 | |
Gaming Score | |||
Gaming Score | 6.7/10 | 9.1/10 | |
TV and Video Score | |||
TV and Video Score | 7.8/10 | 9/10 | |
Exercise Score | |||
Exercise Score | 4.3/10 | 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 | 5.3/10 | 9.1/10 | |
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 | 8/10 | |
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) | 5.5 Grams | 294.8 Grams | |
Microphone style | |||
Microphone style | N/A | Integrated | |
Shopping
7hz Timeless
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Headphonesty
Kazi Mahbub Mutakabbir | May 2023
"7Hz picked a bold name for the Timeless and frankly, got very close to justifying their word choice. Most importantly, the Timeless are good to go in stock form, so you don’t have to worry about source-matching and such. I can recommend the 7Hz Timeless to those who do not mind a dash of brightness up top, want a taste of planar in IEM form, and want one of the most resolving pair of earphones in the $150 - $300 price range."
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 7hz Timeless 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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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
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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