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Scored using Headphones Methodology v1.0
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Products in this category are scored under Frontum Headphones Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
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Sennheiser CX 1 00 Review | 93 Data compared

Avg. price:~£35Form factor:in-earConnectivity:wiredBattery life:N/A hoursActive noise cancellation (ANC):no

Sennheiser CX 1 00 Review: Compare 93 technical specifications and user reviews to see how this product ranks in the Headphones category and whether it is worth buying.

Sennheiser CX 1 00
5.9/10

Overall score

Score
5.9/ 10
✕
What it is
An overall evaluation of the headphones' quality, based on technical analyses and user reviews.
When it matters
When you need a quick reference to identify the best headphones on the market.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 70% of models
Score components

80%

5.2

Technical score

20%

8.4

User score

â–¼Worse than 70% of headphones
7.1

Value for money

Value for money
7.1/ 10
✕
What it is
An indicator that combines the headphones' overall rating with their cost.
When it matters
When you are looking for headphones that offer a strong balance of performance, features, and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 67% of models
Score components

70%

5.9

Overall score

30%

10

Price

â–¼Worse than 67%
5.2

Technical score

Technical score
5.2/ 10
✕
What it is
An assessment of technical performance for products in the Headphones category across these key areas: Sound, Calls & Controls, Connectivity, Features, Battery, Design.
When it matters
When you want to compare headphones based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 86% of models
Score components

52%

5.7

Sound

20%

4.0

Features

10%

7.2

Design

8%

4.6

Connectivity

6%

4.0

Battery

4%

3.8

Calls & Controls

â–¼Worse than 86%
8.4

User score

User score
8.4/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the headphones.
When it matters
When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 79% of models
Score components

70%

8.4

User ratings

30%

8.3

Number of reviews

Based on ratings from across the web.
â–²Better than 79%
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Where to buy
*As an Amazon Associate, we earn from qualifying purchases.
Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of pair of headphones Sennheiser CX 1 00

Technical score
Technical score
5.2/ 10
✕
What it is
An assessment of technical performance for products in the Headphones category across these key areas: Sound, Calls & Controls, Connectivity, Features, Battery, Design.
When it matters
When you want to compare headphones based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 86% of models
Score components:

52%

5.7

Sound

20%

4.0

Features

10%

7.2

Design

8%

4.6

Connectivity

6%

4.0

Battery

4%

3.8

Calls & Controls

5.2
User score
User score
8.4/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the headphones.
When it matters
When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 79% of models
Score components

70%

8.4

User ratings

30%

8.3

Number of reviews

Based on ratings from across the web.
8.4
Popularity
Popularity
8.3/ 10
✕
What it is
An indicator based on the number of reviews received by the headphones.
When it matters
When you prefer headphones that have already been chosen and reviewed by many other users.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 79% of models
Popularity:
Sennheiser CX 1 00 has a popularity score of 8.3 points, which is higher than that of 78.8% of products in this category.
8.3
Value for money
Value for money
7.1/ 10
✕
What it is
An indicator that combines the headphones' overall rating with their cost.
When it matters
When you are looking for headphones that offer a strong balance of performance, features, and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 67% of models
Score components:

70%

5.9

Overall score

30%

10

Price

7.1
Active noise cancellation (ANC)
no
This pair of headphones does not support active noise cancellation. 27.5% of headphones support active noise cancellation.
Driver type
dynamic
Driver size
9 mm
Market range: <10 mm – >50 mm
This pair of headphones uses a driver size of 9 mm, smaller driver size than 92.3% of headphones and equal to 2.6% of headphones.
Number of drivers
1
Market range: <1 – >4
This pair of headphones uses 1 drivers, fewer drivers than 4% of headphones and equal to 96% of headphones.
Lowest frequency
17 Hz
Market range: <5 Hz – >20 Hz
This pair of headphones reaches a lowest frequency of 17 Hz, lower lowest frequency than 53.2% of headphones and equal to 0.9% of headphones.
Show more
Noise-canceling microphone
no
This pair of headphones does not support a noise-canceling microphone. 39% of headphones support noise-canceling microphones.
Can be used as a headset
no
This pair of headphones is not headset-ready, while 15.1% is. 84.9% of headphones can be used as headsets.
Number of microphones
0
Market range: <0 – >4
This pair of headphones has 0 microphones, fewer microphones than 73.2% of headphones and equal to 26.9% of headphones.
Boom microphone
no
This pair of headphones does not include a boom microphone. 13.5% of headphones have a boom microphone.
Microphone SNR
N/A
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Connectivity
wired
This pair of headphones supports wired connectivity, less flexible connectivity than 49.2% of headphones and equal to 50.8% of headphones.
Bluetooth version
N/A
Maximum Bluetooth range
N/A
Audio latency
N/A
Multipoint support
no
This pair of headphones does not support multipoint. 30.6% of headphones support multipoint.
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Ambient sound mode
no
This pair of headphones does not offer ambient sound mode. 24.9% of headphones support ambient sound mode.
EQ support
no
This pair of headphones does not support EQ customization. 23.2% of headphones support EQ.
Companion app
no
This pair of headphones does not work with a companion app. 21.6% of headphones support companion apps.
Adjustable ANC levels
N/A
Voice assistant support
no
This pair of headphones does not support voice assistants. 60.9% of headphones support voice assistants.
Show more
Battery life
N/A
Battery life with ANC
N/A
Charging time
N/A
Quick charge
no
This pair of headphones does not support quick charging. 33.1% of headphones support quick charge.
Battery capacity
N/A
Show more
Brand name
Sennheiser
Form factor
in-ear
Weight
10 g
Market range: <14 g – >340 g
This pair of headphones weighs 10 g, lighter than 95.3% of headphones and equal to 1.1% of headphones.
Acoustic design
closed-back
Clamp force
N/A
Show more

Sennheiser CX 1 00 vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • 95.4% lower weight
    This pair of headphones is lighter than the average pair of headphones (10 g vs 218 g). The average pair of headphones weighs 218 g.
    10 g vs 218 g
  • 17 dB/mW higher sensitivity
    This pair of headphones has a higher sensitivity than the average pair of headphones (119 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    119 dB/mW vs 102 dB/mW
  • Direct 3.5 mm plug
    This pair of headphones includes a direct 3.5 mm plug, the average pair of headphones does not. 39.8% of headphones have a 3.5 mm male connector.
  • 16 dB SPL higher sound pressure level
    This pair of headphones has a higher sound pressure level than the average pair of headphones (119 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
    119 dB SPL vs 103 dB SPL
  • 2.57x cheaper
    Sennheiser CX 1 00 is cheaper than the average pair of headphones (£35 vs £90).
    £35 vs £90
  • 2.57x cheaper
    Sennheiser CX 1 00 is cheaper than the average pair of headphones (£35 vs £90).
    £35 vs £90
  • 95.4% lower weight
    This pair of headphones is lighter than the average pair of headphones (10 g vs 218 g). The average pair of headphones weighs 218 g.
    10 g vs 218 g
  • 17 dB/mW higher sensitivity
    This pair of headphones has a higher sensitivity than the average pair of headphones (119 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    119 dB/mW vs 102 dB/mW
  • 16 dB SPL higher sound pressure level
    This pair of headphones has a higher sound pressure level than the average pair of headphones (119 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
    119 dB SPL vs 103 dB SPL
  • Direct 3.5 mm plug
    This pair of headphones includes a direct 3.5 mm plug, the average pair of headphones does not. 39.8% of headphones have a 3.5 mm male connector.
  • 31 mm smaller driver size
    This pair of headphones has smaller driver size than the average pair of headphones (9 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    9 mm vs 40 mm
  • Non-replaceable earpads
    This pair of headphones has non-replaceable earpads, while the average pair of headphones has replaceable ones. 75.6% of headphones have replaceable earpads.
  • No voice assistant support
    This pair of headphones does not support voice assistants, the average pair of headphones does. 60.8% of headphones support voice assistants.
  • Fixed cable
    This pair of headphones has a fixed cable, while the average pair of headphones has a detachable one. 62% of headphones have a detachable cable.
  • Not headset-ready
    This pair of headphones is not headset-ready, while the average pair of headphones is. 84.8% of headphones can be used as headsets.
  • No battery indicator
    This pair of headphones does not show battery level clearly, while the average pair of headphones does. 56.3% of headphones have a battery level indicator.
  • 1 fewer microphones
    This pair of headphones has fewer microphones than the average pair of headphones (0 vs 1). The average headphones have 1 microphones.
    0 vs 1
  • 0.2 % higher distortion
    This pair of headphones has a higher total harmonic distortion than the average pair of headphones (0.5 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    0.5 % vs 0.3 %
  • 2.3% worse value for money
    Sennheiser CX 1 00 has worse value for money than the average pair of headphones (7.1 vs 7.3).
    7.1 vs 7.27
  • Non-replaceable earpads
    This pair of headphones has non-replaceable earpads, while the average pair of headphones has replaceable ones. 75.6% of headphones have replaceable earpads.
  • Fixed cable
    This pair of headphones has a fixed cable, while the average pair of headphones has a detachable one. 62% of headphones have a detachable cable.
  • No travel bag
    This pair of headphones does not include a travel bag, the average pair of headphones does. 65.4% of headphones include a travel bag.
  • 31 mm smaller driver size
    This pair of headphones has smaller driver size than the average pair of headphones (9 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    9 mm vs 40 mm
  • 0.2 % higher distortion
    This pair of headphones has a higher total harmonic distortion than the average pair of headphones (0.5 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    0.5 % vs 0.3 %
  • No battery indicator
    This pair of headphones does not show battery level clearly, while the average pair of headphones does. 56.3% of headphones have a battery level indicator.
  • Not headset-ready
    This pair of headphones is not headset-ready, while the average pair of headphones is. 84.8% of headphones can be used as headsets.
  • 1 fewer microphones
    This pair of headphones has fewer microphones than the average pair of headphones (0 vs 1). The average headphones have 1 microphones.
    0 vs 1
  • No voice assistant support
    This pair of headphones does not support voice assistants, the average pair of headphones does. 60.8% of headphones support voice assistants.

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

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Third-party reviews

Based on ratings from across the web.
Reviews last updated: November 2026 · How we calculate this

What customers like about Sennheiser CX 1 00

  • Excellent sound quality for the price with clear, clean highs and a smooth midrange.
  • Well-controlled and impactful bass that doesn't overwhelm other frequencies.
  • Extremely lightweight and compact design, providing nearly perfect comfort for most users.
  • Effective passive noise isolation due to the in-ear seal and choice of four ear tip sizes.
  • Sturdy build quality with a mix of metal and plastic construction.
  • Good dynamics and timing, making them an entertaining listen for various genres like rock and metal.

What customers don't like about Sennheiser CX 1 00

  • Lacks an in-line remote or microphone, making it impossible to control volume or take calls directly from the cable.
  • Design and materials (plastic cables) can look and feel somewhat cheap.
  • Cable is prone to tangling and can be fragile under intensive use.
  • Identifying 'Left' and 'Right' buds can be difficult due to tiny, hard-to-read markings.
  • Occasional reports of muddiness or distortion in the lower mids for certain tracks.
  • Fit may be problematic for some, requiring effort to get a proper seal despite multiple tip options.

Verdict

The Sennheiser CX 1.00 is an ultra-lightweight (10g), wired in-ear headphone featuring dynamic drivers with a frequency response of 17Hz to 20,000Hz, an impedance of 28 Ohms, and a high sound pressure level of 119 dB. It is characterized by its minimalist, compact design and neodymium magnets that deliver a balanced sound profile with punchy bass and detailed highs. Main pros include its extremely comfortable fit, effective passive noise isolation through four included ear adapter sizes, and a durable 1.2m tangle-resistant cable with a right-angled 3.5mm plug. However, it lacks an in-line remote or microphone for calls, and the thin cable may feel fragile for intensive daily use.

Compare Sennheiser CX 1 00 with other products in the Headphones category

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