A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Company ProductName Specs
Company ProductName Specs
Advantages of the Bose Quiet Comfort 45
- Best in class for air travel
- Excellent for podcasts and audiobooks
Advantages of the Sennheiser HD 400S
- Good for music
- Very good for gaming
- Good for TV and video
Key differences
Music
6.4
7.1
The Sennheiser HD 400S is good for music, while the Bose Quiet Comfort 45 is only fair.
Gaming
5.5
8.6
The Sennheiser HD 400S is very good for gaming, while the Bose Quiet Comfort 45 is poor.
Podcasts and Audiobooks
9.3
7.6
The Bose Quiet Comfort 45 is excellent for podcasts and audiobooks, while the Sennheiser HD 400S is good.
TV and Video
5.8
7.6
The Sennheiser HD 400S is good for TV and video, while the Bose Quiet Comfort 45 is poor.
Noise Reduction
10.0
5.3
The Bose Quiet Comfort 45 is best in class for noise reduction, while the Sennheiser HD 400S is poor.
Battery
22.5 Hours
N/A
The Bose Quiet Comfort 45 has 22.5 hours of battery life. The Sennheiser HD 400S does not have a battery.
Cost
$260
$61
$50
$100
$150
$200
$250
$300
$350
$400
The Bose Quiet Comfort 45 has a price of $260 and the Sennheiser HD 400S costs $61.
Let Us Help Find Your Perfect Headphones
Find your new headphones
Key similarities
Phone Calls
8.0
8.2
The Sennheiser HD 400S and Bose Quiet Comfort 45 are both very good for phone calls.
Build Quality
8.5
8.5
The Bose Quiet Comfort 45 and Sennheiser HD 400S both have very good build quality.
Give feedback
We’re constantly working to improve.
How the Bose Quiet Comfort 45 and the Sennheiser HD 400S compare to other earbuds and headphones
Spec Comparison
 |  | |
| Bose Quiet Comfort 45 | Sennheiser HD 400S |
GENERAL | |||
|---|---|---|---|
| Price | |||
$260 | $61 | ||
Brand | |||
Brand | Bose | Sennheiser | |
Release Date | |||
Release Date | September 1, 2021 | January 1, 2019 | |
Form Factor | |||
Form Factor | Headphones | Headphones | |
Connectivity | |||
Connectivity | Wired + Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 6.5/10 | 7.2/10 | |
Phone Calls Score | |||
Phone Calls Score | 8/10 | 8.2/10 | |
Gaming Score | |||
Gaming Score | 5.6/10 | 8.7/10 | |
TV and Video Score | |||
TV and Video Score | 5.8/10 | 7.7/10 | |
Exercise Score | |||
Exercise Score | 6.4/10 | 4.2/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 22.5 Hours | N/A | |
Wireless charging | |||
Wireless charging | No | N/A | |
Charging time | |||
Charging time | 3 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5.1 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | Yes | No | |
Noise Reduction Score | |||
Noise Reduction Score | 10/10 | 5.3/10 | |
Virtual Surround | |||
Virtual Surround | No | No | |
Android App | |||
Android App | Yes | N/A | |
iOS App | |||
iOS App | Yes | N/A | |
Mic Quality | |||
Mic Quality | 7/10 | 8.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8.5/10 | 8.5/10 | |
Comfort score | |||
Comfort score | 10/10 | 8.4/10 | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 235.8 Grams | 213 Grams | |
Microphone style | |||
Microphone style | Integrated | Integrated | |
Waterproof Rating | |||
Waterproof Rating | 0 | 0 | |
Shopping
Bose Quiet Comfort 45
See more
Dig into reviews and images
What HiFi?
What HiFi? | November 2022
"If you want a set of wireless over-ear headphones you can put on, deploy noise-cancelling on your commute or at your desk and largely extinguish the outside world for up to 24 hours, the Bose QC 45 has the edge over most of the competition at the price."
Sennheiser HD 400S
See more
Dig into reviews and images
Headphone Dungeon
Jim | August 2022
"Sennheiser has done it again. The HD 400S performs well beyond its price range and is one of the better budget model headphones I’ve tried. It has very few bells and whistles and offers a simple means of listening that still delivers amazing clarity and quality. If you need a good first pair of headphones or need something that you can take out of the house, then the HD 400S is definitely for you."
Get a great deal on the Bose Quiet Comfort 45 or the Sennheiser HD 400S
About Bose
Bose is an American audio equipment manufacturer based out of Framingham, Massachusetts. Founded in 1964 by Amar Bose with the goal of creating a speaker system that could accurately recreate the sound of a concert hall, Bose has become one of the most prominent players in the modern consumer audio market due to the premium feel of their products and their wide brand recognition.
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
More comparisons for you
Compare Bose Quiet Comfort 45 vs. Apple Airpods Pro
VS
Compare Bose Quiet Comfort 45 vs. Grado GT220
VS
Compare Bose Quiet Comfort 45 vs. HifiMan Edition XS
VS
Compare Sennheiser HD 400S vs. Koss Porta Pro (with mic)
VS
Compare Sennheiser HD 400S vs. JBL Tune Flex
VS
Compare Sennheiser HD 400S vs. JBL Live Free NC+
VS
FAQs
FAQs about earbuds and headphones
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.
By the numbers
108
Earbuds and headphones evaluated
11,340
Earbuds and headphones stats compiled
15
Proprietary Earbuds and headphones ratings developed
95,300
Recommendations made
14,295
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
