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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 5 00I Review | 93 Data compared

Avg. price:~£60Form factor:in-earConnectivity:wiredBattery life:N/A hoursActive noise cancellation (ANC):no

Sennheiser CX 5 00I 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 5 00I
6.0/10

Overall score

Score
6.0/ 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 61% of models
Score components

80%

5.7

Technical score

20%

7.2

User score

â–¼Worse than 61% of headphones
7.2

Value for money

Value for money
7.2/ 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 59% of models
Score components

70%

6.0

Overall score

30%

10

Price

â–¼Worse than 59%
5.7

Technical score

Technical score
5.7/ 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 60% of models
Score components

52%

6.3

Sound

20%

4.0

Features

10%

7.2

Design

8%

4.8

Connectivity

6%

4.9

Battery

4%

6.1

Calls & Controls

â–¼Worse than 60%
7.2

User score

User score
7.2/ 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–¼ Worse than 81% of models
Score components

70%

8.0

User ratings

30%

5.4

Number of reviews

Based on ratings from across the web.
â–¼Worse than 81%
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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 5 00I

Technical score
Technical score
5.7/ 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 60% of models
Score components:

52%

6.3

Sound

20%

4.0

Features

10%

7.2

Design

8%

4.8

Connectivity

6%

4.9

Battery

4%

6.1

Calls & Controls

5.7
User score
User score
7.2/ 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–¼ Worse than 81% of models
Score components

70%

8.0

User ratings

30%

5.4

Number of reviews

Based on ratings from across the web.
7.2
Popularity
Popularity
5.4/ 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–¼ Worse than 55% of models
Popularity:
Sennheiser CX 5 00I has a popularity score of 5.4 points, which is lower than that of 54.1% of products in this category.
5.4
Value for money
Value for money
7.2/ 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 59% of models
Score components:

70%

6.0

Overall score

30%

10

Price

7.2
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
?
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
16 Hz
Market range: <5 Hz – >20 Hz
This pair of headphones reaches a lowest frequency of 16 Hz, lower lowest frequency than 54.1% of headphones and equal to 4.2% 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
yes
This pair of headphones is headset-ready, 84.8% is not. 15.2% of headphones can be used as headsets.
Number of microphones
1
Market range: <0 – >4
This pair of headphones has 1 microphones, more microphones than 26.9% of headphones and equal to 50.9% 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
?
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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
16 g
Market range: <14 g – >340 g
This pair of headphones weighs 16 g, lighter than 87.7% of headphones and equal to 0.8% of headphones.
Acoustic design
closed-back
Clamp force
N/A
Show more

Sennheiser CX 5 00I vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • 92.7% lower weight
    This pair of headphones is lighter than the average pair of headphones (16 g vs 218 g). The average pair of headphones weighs 218 g.
    16 g vs 218 g
  • 16 dB/mW higher sensitivity
    This pair of headphones has a higher sensitivity than the average pair of headphones (118 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    118 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.
  • In-line controls
    This pair of headphones includes in-line controls, the average pair of headphones does not. 36.6% of headphones support in-line controls.
  • AAC codec support
    This pair of headphones supports AAC, the average pair of headphones does not. 32.2% of headphones support AAC.
  • USB-C charging
    This pair of headphones uses USB-C charging, the average pair of headphones does not. 29.5% of headphones use USB Type-C.
  • 15 dB SPL higher sound pressure level
    This pair of headphones has a higher sound pressure level than the average pair of headphones (118 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
    118 dB SPL vs 103 dB SPL
  • 2,000 Hz higher treble extension
    This pair of headphones has a higher highest frequency than the average pair of headphones (22,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
    22,000 Hz vs 20,000 Hz
  • 92.7% lower weight
    This pair of headphones is lighter than the average pair of headphones (16 g vs 218 g). The average pair of headphones weighs 218 g.
    16 g vs 218 g
  • 16 dB/mW higher sensitivity
    This pair of headphones has a higher sensitivity than the average pair of headphones (118 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    118 dB/mW vs 102 dB/mW
  • 15 dB SPL higher sound pressure level
    This pair of headphones has a higher sound pressure level than the average pair of headphones (118 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
    118 dB SPL vs 103 dB SPL
  • 2,000 Hz higher treble extension
    This pair of headphones has a higher highest frequency than the average pair of headphones (22,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
    22,000 Hz vs 20,000 Hz
  • USB-C charging
    This pair of headphones uses USB-C charging, the average pair of headphones does not. 29.5% of headphones use USB Type-C.
  • 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.
  • AAC codec support
    This pair of headphones supports AAC, the average pair of headphones does not. 32.2% of headphones support AAC.
  • In-line controls
    This pair of headphones includes in-line controls, the average pair of headphones does not. 36.6% of headphones support in-line controls.
  • 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.
  • 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.
  • 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 %
  • 10.6% lower user score
    User score
    7.2/ 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
    ▼▼
    <55-66-77-88-99-10
    Sennheiser CX 5 00I
    the average pair of headphones
    Sennheiser CX 5 00I has a lower user score than the average pair of headphones (7.23 vs 8).
    7.23 vs 8
  • 10.6% lower user score
    User score
    7.2/ 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
    ▼▼
    <55-66-77-88-99-10
    Sennheiser CX 5 00I
    the average pair of headphones
    Sennheiser CX 5 00I has a lower user score than the average pair of headphones (7.23 vs 8).
    7.23 vs 8
  • 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.
  • 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.
  • 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 5 00I

  • Full, rich, and balanced sound signature with a wide soundstage
  • Effective noise isolation for commuting and daily use
  • Lightweight, ergonomic design provides high comfort for most users
  • Tangle-free elliptical cable and robust L-shaped plug
  • Includes four sizes of ear adapters (XS, S, M, L) for a custom fit
  • Convenient 3-button in-line remote with integrated microphone for iOS

What customers don't like about Sennheiser CX 5 00I

  • Treble can occasionally sound slightly artificial or sibilant
  • Cable is non-removable, which may impact long-term durability if damaged
  • Bass response might be too 'polite' for dedicated bassheads
  • Plastic construction can feel less premium than metal alternatives
  • Some users report the ear tips can become loose over time
  • Included carrying case is considered bulky and not very practical

Verdict

The Sennheiser CX 5.00i is a wired in-ear canal headset specifically optimized for Apple iOS devices, featuring an 18-ohm dynamic transducer that delivers a wide frequency response of 16Hz to 22,000Hz and a maximum sound pressure level of 118dB. Its primary characteristics include an ergonomic angled design for enhanced comfort, an elliptical tangle-free cable with a 3.5mm right-angled plug, and a three-button in-line remote with an integrated omnidirectional microphone for seamless call and music control. Main pros include its rich, detailed sound signature with superior bass response, high-quality passive noise isolation provided by four sizes of included ear adapters, and a robust, premium build quality that includes a hard carrying case. However, some users note potential cons such as a slightly harsh or sharp treble at high volumes, a non-removable cable that limits long-term repairability, and the relatively large size of the earpieces which may stick out of the ear for some listeners.

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