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What we think
The PerfectRec Earbuds or Headphones team Learn more
Updated January 10, 2024·
If you prioritize sound quality and a premium listening experience with features like active noise cancelling, the Sennheiser Momentum 4 would be a better choice, but they come with a higher price tag. They offer a high level of comfort, long battery life, and excellent mic quality, making them suitable for long listening sessions, calls, and meetings. However, if budget is a concern, and you want a portable solution with decent sound and are fine with a simpler wired design without noise-cancelling, the Sennheiser CX300S could serve you well at a significantly lower cost. Keep in mind the CX300S lack a microphone and their sound isolation is lower, but they are also more suited for exercise due to their smaller size and lighter weight. 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 Sennheiser CX300S
- The Sennheiser CX300S has no clear advantages over the Sennheiser Momentum 4.
Advantages of the Sennheiser Momentum 4
- Good for music
- Excellent for gaming
- Very good for TV and video
- Very good for air travel
- Very good for podcasts and audiobooks
Key differences
Music
6.9
7.5
The Sennheiser Momentum 4 is good for music, while the Sennheiser CX300S is only fair.
Gaming
6.1
9.0
The Sennheiser Momentum 4 is excellent for gaming, while the Sennheiser CX300S is only fair.
Phone Calls
3.0
6.8
The Sennheiser Momentum 4 is only fair for phone calls, while the Sennheiser CX300S is poor.
Podcasts and Audiobooks
4.7
8.2
The Sennheiser Momentum 4 is very good for podcasts and audiobooks, while the Sennheiser CX300S is poor.
TV and Video
7.3
8.9
The Sennheiser Momentum 4 is very good for TV and video, while the Sennheiser CX300S is good.
Noise Reduction
7.0
9.1
The Sennheiser Momentum 4 is excellent for noise reduction, while the Sennheiser CX300S is good.
Battery
N/A
59.0 Hours
The Sennheiser CX300S does not have a battery. The Sennheiser Momentum 4 has 59 hours of battery life.
Cost
$50
$250
$0
$50
$100
$150
$200
$250
$300
$350
The Sennheiser CX300S has a price of $50 and the Sennheiser Momentum 4 costs $250.
Build Quality
8.0
9.0
The Sennheiser Momentum 4 has excellent build quality, while the Sennheiser CX300S has very good build quality.
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How the Sennheiser CX300S and the Sennheiser Momentum 4 compare to other earbuds and headphones
Spec Comparison
 |  | |
| Sennheiser CX300S | Sennheiser Momentum 4 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$50 | $250 | ||
Brand | |||
Brand | Sennheiser | Sennheiser | |
Release Date | |||
Release Date | February 1, 2019 | August 1, 2022 | |
Form Factor | |||
Form Factor | Earbuds | Headphones | |
Connectivity | |||
Connectivity | Wired | Wired + Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 7/10 | 7.5/10 | |
Phone Calls Score | |||
Phone Calls Score | 3.1/10 | 6.9/10 | |
Gaming Score | |||
Gaming Score | 6.1/10 | 9.1/10 | |
TV and Video Score | |||
TV and Video Score | 7.4/10 | 9/10 | |
Exercise Score | |||
Exercise Score | 4.2/10 | 6.4/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | N/A | 59 Hours | |
Wireless charging | |||
Wireless charging | N/A | No | |
Charging time | |||
Charging time | N/A | 2 Hours | |
Bluetooth version | |||
Bluetooth version | N/A | 5.2 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | Yes | |
Noise Reduction Score | |||
Noise Reduction Score | 7/10 | 9.1/10 | |
Virtual Surround | |||
Virtual Surround | No | No | |
Android App | |||
Android App | N/A | Yes | |
iOS App | |||
iOS App | N/A | Yes | |
Mic Quality | |||
Mic Quality | N/A | 8/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8/10 | 9/10 | |
Comfort score | |||
Comfort score | 7.6/10 | 8.4/10 | |
Size | |||
Size | Small | N/A | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 12 Grams | 294.8 Grams | |
Microphone style | |||
Microphone style | N/A | Integrated | |
Shopping
Sennheiser CX300S
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Dig into reviews and images
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."
Sennheiser Momentum 4
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Dig into reviews and images
Sound Guys
Christian Thomas | January 2023
"If you're looking for a slightly more affordable set of ANC headphones in comparison to the Bose or Sony offerings: the Sennheiser MOMENTUM 4 Wireless is not a bad way to go. While its ANC is technically behind the other top-tier headphones, its sound quality is ahead of the pack—as is its battery life. Not bad for $350 USD."
Get a great deal on the Sennheiser CX300S or the Sennheiser Momentum 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.
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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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