A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Timeless
Company ProductName Specs




Momentum True Wireless 4
Company ProductName Specs




What we think

Chevron down
PerfectRec Logo
The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·

If you prioritize wireless convenience and modern features like active noise cancelling, the Sennheiser Momentum True Wireless 4 would suit you best, with additional benefits such as better call quality and a longer battery life. However, it comes at a higher price. On the other hand, the 7hz Timeless, at a generally lower cost, offers very good sound quality and is wired, which may appeal if you're okay with cables and don't need wireless functionality. The Timeless also has a detachable cable and is known for a balanced audio output but lacks in comfort, noise isolation, and additional features such as an app equalizer and touch controls. 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 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

Chevron down

Music

8.6
Timeless
Momentum True Wireless 4
7.5
The 7hz Timeless is very good for music, while the Sennheiser Momentum True Wireless 4 is good.

Gaming

6.6
Timeless
Momentum True Wireless 4
9.1
The Sennheiser Momentum True Wireless 4 is excellent for gaming, while the 7hz Timeless is only fair.

Phone Calls

4.3
Timeless
Momentum True Wireless 4
7.2
The Sennheiser Momentum True Wireless 4 is good for phone calls, while the 7hz Timeless is poor.

Podcasts and Audiobooks

6.8
Timeless
Momentum True Wireless 4
8.1
The Sennheiser Momentum True Wireless 4 is very good for podcasts and audiobooks, while the 7hz Timeless is only fair.

Noise Reduction

5.3
Timeless
Momentum True Wireless 4
8.3
The Sennheiser Momentum True Wireless 4 is very good for noise reduction, while the 7hz Timeless is poor.

Battery

N/A
Timeless
Momentum True Wireless 4
7.5 Hours
The 7hz Timeless does not have a battery. The Sennheiser Momentum True Wireless 4 has 7.5 hours of battery life.

Cost

$200
Timeless
Momentum True Wireless 4
$300
Product image
Product image

$100

$150

$200

$250

$300

$350

$400

The 7hz Timeless has a price of $200 and the Sennheiser Momentum True Wireless 4 costs $300.
Image of Earbuds & Headphones
Let Us Help Find Your Perfect Headphones
Find your new headphones

Key similarities

Chevron down

TV and Video

7.8
Timeless
Momentum True Wireless 4
8.0
Although they have very similar scores, PerfectRec considers Sennheiser Momentum True Wireless 4 to be very good for TV and video, while the 7hz Timeless is good.

Build Quality

8.5
Timeless
Momentum True Wireless 4
8.9
The Sennheiser Momentum True Wireless 4 and 7hz Timeless both have very good build quality.

Give feedback

We’re constantly working to improve.

How the 7hz Timeless and the Sennheiser Momentum True Wireless 4 compare to other earbuds and headphones

Chevron down

Spec Comparison

Chevron down
7hz TimelessSennheiser Momentum True Wireless 4
7hz TimelessSennheiser Momentum True Wireless 4

GENERAL

Price
$200
$300
Brand
7hzSennheiser
Release Date
August 1, 2021March 1, 2024
Form Factor
EarbudsEarbuds
Connectivity
WiredWireless

SOUND

Music Score
8.6/107.5/10
Phone Calls Score
4.3/107.2/10
Gaming Score
6.7/109.1/10
TV and Video Score
7.8/108.1/10
Exercise Score
4.3/108.3/10

PERFORMANCE

Battery life
N/A7.5 Hours
Wireless charging
N/AYes
Charging time
N/A2 Hours
Bluetooth version
N/A5.4
Case Battery Life
N/A30

FEATURES

Active Noise Cancelling
NoYes
Noise Reduction Score
5.3/108.4/10
Virtual Surround
N/ANo
Android App
N/AYes
iOS App
N/AYes
Mic Quality
N/A8.5/10

BUILD AND DESIGN

Build Quality
8.5/108.9/10
Comfort score
7/107.6/10
Size
LargeMedium
Weight (headset or single earbud)
5.5 Grams5.8 Grams
Microphone style
N/AIntegrated

Shopping

Chevron down

7hz Timeless

See more

Dig into reviews and images

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 True Wireless 4

See more

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."

Get a great deal on the 7hz Timeless or the Sennheiser Momentum True Wireless 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.

Give feedback

We're constantly perfecting our model

Earbuds or Headphones guides you might be interested in

Chevron down

FAQs

Chevron down

FAQs about earbuds and headphones

Questions about PerfectRec >

Why trust us

Chevron down
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.

By the numbers

108
Earbuds and headphones evaluated
11,340
Earbuds and headphones stats compiled
15
Proprietary Earbuds and headphones ratings developed
122,600
Recommendations made
18,390
Consumer hours saved

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.

Jason Lew

Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.

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.

Luis Torres

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.

Featured in

Color LTT LogoGeekwire logo9to5 Mac logoPhone Arena LogoColor Daring Fireball logo