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What we think
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Updated April 11, 2024·
If you're on a budget and primarily need earbuds for wired listening, the Sennheiser CX300S may satisfy with fair music quality and good comfort, though they lack features like sweat resistance and have poor mic quality. However, if you need premium wireless earbuds for a versatile range of activities including sports, with excellent build quality, active noise cancelling, and advanced features like heart rate tracking, the Sennheiser Momentum Sport is more suitable. They're also better for calls and have a notably longer battery life. Remember, the Momentum Sport comes at a higher price point, but they offer significant upgrades for the investment. 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 Sport.
Advantages of the Sennheiser Momentum Sport
- Good for music
- Good for phone calls
- Very good for gaming
- Very good for exercise
- Very good for air travel
- Good for podcasts and audiobooks
Key differences
Music
6.9
7.5
The Sennheiser Momentum Sport is good for music, while the Sennheiser CX300S is only fair.
Gaming
6.1
8.8
The Sennheiser Momentum Sport is very good for gaming, while the Sennheiser CX300S is only fair.
Phone Calls
3.0
7.0
The Sennheiser Momentum Sport is good for phone calls, while the Sennheiser CX300S is poor.
Podcasts and Audiobooks
4.7
7.8
The Sennheiser Momentum Sport is good for podcasts and audiobooks, while the Sennheiser CX300S is poor.
Noise Reduction
7.0
8.0
The Sennheiser Momentum Sport is very good for noise reduction, while the Sennheiser CX300S is good.
Battery
N/A
6.0 Hours
The Sennheiser CX300S does not have a battery. The Sennheiser Momentum Sport has 6 hours of battery life.
Cost
$50
$330
$0
$100
$200
$300
$400
The Sennheiser CX300S has a price of $50 and the Sennheiser Momentum Sport costs $330.
Build Quality
8.0
9.0
The Sennheiser Momentum Sport has excellent build quality, while the Sennheiser CX300S has very good build quality.
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Key similarities
TV and Video
7.3
7.8
The Sennheiser Momentum Sport and Sennheiser CX300S are both good for TV and video.
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How the Sennheiser CX300S and the Sennheiser Momentum Sport compare to other earbuds and headphones
Spec Comparison
 |  | |
| Sennheiser CX300S | Sennheiser Momentum Sport |
GENERAL | |||
|---|---|---|---|
| Price | |||
$50 | $330 | ||
Brand | |||
Brand | Sennheiser | Sennheiser | |
Release Date | |||
Release Date | February 1, 2019 | March 1, 2024 | |
Form Factor | |||
Form Factor | Earbuds | Earbuds | |
Connectivity | |||
Connectivity | Wired | Wireless | |
SOUND | |||
|---|---|---|---|
Music Score | |||
Music Score | 7/10 | 7.5/10 | |
Phone Calls Score | |||
Phone Calls Score | 3.1/10 | 7/10 | |
Gaming Score | |||
Gaming Score | 6.1/10 | 8.9/10 | |
TV and Video Score | |||
TV and Video Score | 7.4/10 | 7.8/10 | |
Exercise Score | |||
Exercise Score | 4.2/10 | 8.5/10 | |
PERFORMANCE | |||
|---|---|---|---|
Battery life | |||
Battery life | N/A | 6 Hours | |
Wireless charging | |||
Wireless charging | N/A | Yes | |
Charging time | |||
Charging time | N/A | 1.5 Hours | |
Bluetooth version | |||
Bluetooth version | N/A | 5.4 | |
Case Battery Life | |||
Case Battery Life | N/A | 24 | |
FEATURES | |||
|---|---|---|---|
Active Noise Cancelling | |||
Active Noise Cancelling | No | Yes | |
Noise Reduction Score | |||
Noise Reduction Score | 7/10 | 8/10 | |
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 | 8.5/10 | |
BUILD AND DESIGN | |||
|---|---|---|---|
Build Quality | |||
Build Quality | 8/10 | 9/10 | |
Comfort score | |||
Comfort score | 7.6/10 | 7.6/10 | |
Size | |||
Size | Small | Large | |
Weight (headset or single earbud) | |||
Weight (headset or single earbud) | 12 Grams | 6.8 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 Sport
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Tech Radar
Amelia Schwanke | January 2024
"We hadn't been expecting a new pair of dedicated sports buds but the surprise was nonetheless exciting. I got to try out the new buds at CES 2024 and while they have stayed true to delivering that "signature" Sennheiser sound, with a wide soundstage and strong sense of detail, it’s the extra wearable tech inside them that stands out to me against the best workout headphones."
Get a great deal on the Sennheiser CX300S or the Sennheiser Momentum Sport
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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