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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated April 11, 2024·
If your priority is top-notch noise isolation for air travel, long battery life, and wireless convenience with active noise cancelling, the Bose Quiet Comfort Ultra Headphones are an excellent choice, although they come at a premium price. They deliver exceptional comfort, sound quality, and are optimized for both Android and Apple devices. However, if budget is a concern and you prefer open-back headphones with very good sound quality that are lightweight and don’t mind using a wired connection without modern features like app controls or noise cancellation, the Koss KSC75 would be a great, cost-effective option. Keep in mind that the Koss lacks the build quality, comfort, and advanced features of the Bose. 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 Bose Quiet Comfort Ultra Headphones
- Excellent for gaming
- Excellent for TV and video
- Best in class for air travel
Advantages of the Koss KSC75
- Good for podcasts and audiobooks
Key differences
Gaming
9.3
6.4
The Bose Quiet Comfort Ultra Headphones is excellent for gaming, while the Koss KSC75 is only fair.
Podcasts and Audiobooks
6.0
7.5
The Koss KSC75 is good for podcasts and audiobooks, while the Bose Quiet Comfort Ultra Headphones is only fair.
TV and Video
9.0
7.7
The Bose Quiet Comfort Ultra Headphones is excellent for TV and video, while the Koss KSC75 is good.
Noise Reduction
9.1
2.5
The Bose Quiet Comfort Ultra Headphones is excellent for noise reduction, while the Koss KSC75 is poor.
Battery
29.0 Hours
N/A
The Bose Quiet Comfort Ultra Headphones has 29 hours of battery life. The Koss KSC75 does not have a battery.
Cost
$429
$20
$0
$100
$200
$300
$400
The Bose Quiet Comfort Ultra Headphones has a price of $429 and the Koss KSC75 costs $20.
Build Quality
9.0
5.6
The Bose Quiet Comfort Ultra Headphones has excellent build quality, while the Koss KSC75 has poor build quality.
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Key similarities
Music
8.3
8.3
The Bose Quiet Comfort Ultra Headphones and Koss KSC75 are both very good for music.
Phone Calls
5.3
4.8
The Bose Quiet Comfort Ultra Headphones and Koss KSC75 are both poor for phone calls.
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How the Bose Quiet Comfort Ultra Headphones and the Koss KSC75 compare to other earbuds and headphones
Spec Comparison
 |  | |
| Bose Quiet Comfort Ultra Headphones | Koss KSC75 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$429 | $20 | ||
Brand | |||
Brand | Bose | Koss | |
Release Date | |||
Release Date | November 1, 2023 | January 1, 2005 | |
Form Factor | |||
Form Factor | Headphones | Headphones | |
Connectivity | |||
Connectivity | Wired + Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 8.3/10 | 8.3/10 | |
Phone Calls Score | |||
Phone Calls Score | 5.3/10 | 4.9/10 | |
Gaming Score | |||
Gaming Score | 9.3/10 | 6.5/10 | |
TV and Video Score | |||
TV and Video Score | 9.1/10 | 7.7/10 | |
Exercise Score | |||
Exercise Score | 6.4/10 | 4.3/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 29 Hours | N/A | |
Wireless charging | |||
Wireless charging | No | N/A | |
Charging time | |||
Charging time | 3 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5.3 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | Yes | No | |
Noise Reduction Score | |||
Noise Reduction Score | 9.1/10 | 2.5/10 | |
Virtual Surround | |||
Virtual Surround | Yes | N/A | |
Android App | |||
Android App | Yes | N/A | |
iOS App | |||
iOS App | Yes | N/A | |
Mic Quality | |||
Mic Quality | 7.4/10 | N/A | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 9/10 | 5.7/10 | |
Comfort score | |||
Comfort score | 10/10 | 7/10 | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 255 Grams | 45.3 Grams | |
Microphone style | |||
Microphone style | Integrated | N/A | |
Waterproof Rating | |||
Waterproof Rating | 0 | 0 | |
Shopping
Bose Quiet Comfort Ultra Headphones
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Dig into reviews and images
SoundGuys
Christian Thomas | January 2024
"The Bose QuietComfort Ultra Headphones are a credible step up from previous Bose ANC headphones, and they're built to hang tough with the competition for years into the future. No waterproofing is a bit of a letdown, but these headphones have the technical chops to make most quite happy."
Koss KSC75
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Dig into reviews and images
InEar Fidelity
Crinacle | June 2022
"Let’s not insult the KSC75 by saying that it’s simply good for the price… because it’s far more than that. It basically has a monopoly at its asking price, and could still give modern budget headphones a run for their money 15 years after its release. The KSC75 is the world’s best not-headphone."
Get a great deal on the Bose Quiet Comfort Ultra Headphones or the Koss KSC75
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 Koss
Koss is an American headphone manufacturer established in 1953. In 1958, they created the first set of stereophones, that is headphones with stereo sound, and in 1984 they released the world-famous Porta Pro, a set of on-ear headphones that has remained essentially unchanged for more than 30 years and that is still made, sold and loved by many audio enthusiasts around the world today.
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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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