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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
The Bose QuietComfort Earbuds II offer active noise cancellation which is great for travel or noisy environments, delivering a quiet listening experience, they also provide a wireless experience with touch controls, offering convenience and technology integration. However, they come at a higher price point. The Sennheiser CX300S, on the other hand, do not have noise cancellation and are wired, which means a more stable connection but less freedom of movement. They offer good sound quality at a more affordable price, making them suitable if you're looking for cost-effective, reliable earbuds without the need for the latest features. If your budget allows and you prioritize noise cancellation and wireless convenience, the Bose might be the better choice, otherwise, the Sennheiser will save money while still providing a quality audio experience. 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 QuietComfort Earbuds II
- Good for music
- Very good for exercise
- Very good for air travel
Advantages of the Sennheiser CX300S
- Good for TV and video
Key differences
Gaming
5.5
6.1
The Sennheiser CX300S is only fair for gaming, while the Bose QuietComfort Earbuds II is poor.
Phone Calls
5.1
3.0
The Bose QuietComfort Earbuds II and Sennheiser CX300S are both poor for phone calls, though the Bose QuietComfort Earbuds II is somewhat better.
Podcasts and Audiobooks
6.0
4.7
The Bose QuietComfort Earbuds II is only fair for podcasts and audiobooks, while the Sennheiser CX300S is poor.
TV and Video
6.2
7.3
The Sennheiser CX300S is good for TV and video, while the Bose QuietComfort Earbuds II is only fair.
Noise Reduction
9.1
7.0
The Bose QuietComfort Earbuds II is excellent for noise reduction, while the Sennheiser CX300S is good.
Battery
7.0 Hours
N/A
The Bose QuietComfort Earbuds II has 7 hours of battery life. The Sennheiser CX300S does not have a battery.
Cost
$199
$50
$0
$50
$100
$150
$200
$250
$300
The Bose QuietComfort Earbuds II has a price of $199 and the Sennheiser CX300S costs $50.
Build Quality
9.2
8.0
The Bose QuietComfort Earbuds II has excellent build quality, while the Sennheiser CX300S has very good build quality.
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Key similarities
Music
7.4
6.9
Although they have very similar scores, PerfectRec considers Bose QuietComfort Earbuds II to be good for music, while the Sennheiser CX300S is only fair.
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How the Bose QuietComfort Earbuds II and the Sennheiser CX300S compare to other earbuds and headphones
Spec Comparison
 |  | |
| Bose QuietComfort Earbuds II | Sennheiser CX300S |
GENERAL | |||
|---|---|---|---|
| Price | |||
$199 | $50 | ||
Brand | |||
Brand | Bose | Sennheiser | |
Release Date | |||
Release Date | September 1, 2022 | February 1, 2019 | |
Form Factor | |||
Form Factor | Earbuds | Earbuds | |
Connectivity | |||
Connectivity | Wireless | Wired | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 7.4/10 | 7/10 | |
Phone Calls Score | |||
Phone Calls Score | 5.2/10 | 3.1/10 | |
Gaming Score | |||
Gaming Score | 5.6/10 | 6.1/10 | |
TV and Video Score | |||
TV and Video Score | 6.3/10 | 7.4/10 | |
Exercise Score | |||
Exercise Score | 8.5/10 | 4.2/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | 7 Hours | N/A | |
Wireless charging | |||
Wireless charging | No | N/A | |
Charging time | |||
Charging time | 2 Hours | N/A | |
Bluetooth version | |||
Bluetooth version | 5.3 | N/A | |
Case Battery Life | |||
Case Battery Life | 20 | N/A | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | Yes | No | |
Noise Reduction Score | |||
Noise Reduction Score | 9.1/10 | 7/10 | |
Virtual Surround | |||
Virtual Surround | Yes | No | |
Android App | |||
Android App | Yes | N/A | |
iOS App | |||
iOS App | Yes | N/A | |
Mic Quality | |||
Mic Quality | 6.5/10 | N/A | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 9.2/10 | 8/10 | |
Comfort score | |||
Comfort score | 8.6/10 | 7.6/10 | |
Size | |||
Size | Medium | Small | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 7.7 Grams | 12 Grams | |
Microphone style | |||
Microphone style | Integrated | N/A | |
Shopping
Bose QuietComfort Earbuds II
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Dig into reviews and images
What HiFi?
What HiFi? | September 2023
"Bose’s flagship wireless earbuds were never going to be cheap, but the question was whether they’d be competitive in an area of the market where rivals have never been more capable. The fact that the company has not only managed to implement a successful redesign, but also push the envelope for noise-cancelling and sound quality in such a highly competitive category simultaneously is truly impressive."
Sennheiser CX300S
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Major HiFi
Carroll Moore | April 2019
"Sennheiser offers impressive bang for your buck when it comes to the CX 300S. Built like a tank and sounding surprisingly good for such a budget-minded earphone, the CX 300S out-classes many of its would-be competitors. Functional but beautiful, it’s the perfect in-ear listening solution for anyone who wants to hear everything and look good doing it."
Get a great deal on the Bose QuietComfort Earbuds II or the Sennheiser CX300S
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.
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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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Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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