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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·
If you primarily want high sound quality for music in a quiet setting and are okay with using a cable, the 7hz Timeless earbuds offer balanced audio at a midrange price. However, they're not ideal for workouts or travel since they lack features like sweatproof certification and active noise cancelling. The Sennheiser Momentum Sport, on the other hand, is tailored for active lifestyles with sweat and dust resistance, heart-rate and body temperature tracking, superior voice call quality, and very good active noise cancelling, making them more suitable for exercising and traveling, despite their higher price. The Sennheiser's also boast wireless convenience with a longer battery life and quick charging, but may have a slight latency, which could be noticeable in some gaming or TV scenarios. 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 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
Music
8.6
7.5
The 7hz Timeless is very good for music, while the Sennheiser Momentum Sport is good.
Gaming
6.6
8.8
The Sennheiser Momentum Sport is very good for gaming, while the 7hz Timeless is only fair.
Phone Calls
4.3
7.0
The Sennheiser Momentum Sport is good for phone calls, while the 7hz Timeless is poor.
Podcasts and Audiobooks
6.8
7.8
The Sennheiser Momentum Sport is good for podcasts and audiobooks, while the 7hz Timeless is only fair.
Noise Reduction
5.3
8.0
The Sennheiser Momentum Sport is very good for noise reduction, while the 7hz Timeless is poor.
Battery
N/A
6.0 Hours
The 7hz Timeless does not have a battery. The Sennheiser Momentum Sport has 6 hours of battery life.
Cost
$200
$330
$100
$150
$200
$250
$300
$350
$400
The 7hz Timeless has a price of $200 and the Sennheiser Momentum Sport costs $330.
Build Quality
8.5
9.0
The Sennheiser Momentum Sport has excellent build quality, while the 7hz Timeless has very good build quality.
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Key similarities
TV and Video
7.8
7.8
The 7hz Timeless and Sennheiser Momentum Sport are both good for TV and video.
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How the 7hz Timeless and the Sennheiser Momentum Sport compare to other earbuds and headphones
Spec Comparison
 |  | |
| 7hz Timeless | Sennheiser Momentum Sport |
GENERAL | |||
|---|---|---|---|
| Price | |||
$200 | $330 | ||
Brand | |||
Brand | 7hz | Sennheiser | |
Release Date | |||
Release Date | August 1, 2021 | March 1, 2024 | |
Form Factor | |||
Form Factor | Earbuds | Earbuds | |
Connectivity | |||
Connectivity | Wired | Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 8.6/10 | 7.5/10 | |
Phone Calls Score | |||
Phone Calls Score | 4.3/10 | 7/10 | |
Gaming Score | |||
Gaming Score | 6.7/10 | 8.9/10 | |
TV and Video Score | |||
TV and Video Score | 7.8/10 | 7.8/10 | |
Exercise Score | |||
Exercise Score | 4.3/10 | 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 | 5.3/10 | 8/10 | |
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 | 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) | 5.5 Grams | 6.8 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 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 7hz Timeless 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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