OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Headphones Methodology v1.0
Headphones Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Headphones Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
Explore Headphones Methodology v1.0

Sennheiser CX 275S Review | 93 Data compared

Avg. price:~£55Form factor:in-earConnectivity:wiredBattery life:N/A hoursActive noise cancellation (ANC):no

Sennheiser CX 275S 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 275S
6.3/10

Overall score

Score
6.3/ 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–² Better than 56% of models
Score components

80%

5.7

Technical score

20%

8.7

User score

â–²Better than 56% of headphones
7.4

Value for money

Value for money
7.4/ 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–² Better than 56% of models
Score components

70%

6.3

Overall score

30%

10

Price

â–²Better than 56%
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 59% of models
Score components

52%

6.3

Sound

20%

4.4

Features

10%

7.2

Design

8%

4.7

Connectivity

6%

4.0

Battery

4%

6.1

Calls & Controls

â–¼Worse than 59%
8.7

User score

User score
8.7/ 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 87% of models
Score components

70%

8.2

User ratings

30%

10

Number of reviews

Based on ratings from across the web.
â–²Better than 87%
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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 275S

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 59% of models
Score components:

52%

6.3

Sound

20%

4.4

Features

10%

7.2

Design

8%

4.7

Connectivity

6%

4.0

Battery

4%

6.1

Calls & Controls

5.7
User score
User score
8.7/ 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 87% of models
Score components

70%

8.2

User ratings

30%

10

Number of reviews

Based on ratings from across the web.
8.7
Popularity
Popularity
10/ 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
★ Better than 92% of models
Popularity:
Sennheiser CX 275S has a popularity score of 10 points, which is higher than that of 91.9% of products in this category.
10
Value for money
Value for money
7.4/ 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–² Better than 56% of models
Score components:

70%

6.3

Overall score

30%

10

Price

7.4
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
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
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
?
Show more
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.
Show more
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
yes
This pair of headphones supports voice assistants. 39.2% 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
15 g
Market range: <14 g – >340 g
This pair of headphones weighs 15 g, lighter than 88.7% of headphones and equal to 0.8% of headphones.
Acoustic design
closed-back
Clamp force
N/A
Show more

Sennheiser CX 275S vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • 93.1% lower weight
    This pair of headphones is lighter than the average pair of headphones (15 g vs 218 g). The average pair of headphones weighs 218 g.
    15 g vs 218 g
  • 19 dB/mW higher sensitivity
    This pair of headphones has a higher sensitivity than the average pair of headphones (121 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    121 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.
  • 3,000 Hz higher treble extension
    This pair of headphones has a higher highest frequency than the average pair of headphones (23,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
    23,000 Hz vs 20,000 Hz
  • 70.4% more popular
    Sennheiser CX 275S is more popular than the average pair of headphones (10 vs 5.9).
    10 vs 5.87
  • 18 dB SPL higher sound pressure level
    This pair of headphones has a higher sound pressure level than the average pair of headphones (121 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
    121 dB SPL vs 103 dB SPL
  • 9.3% higher user score
    User score
    8.7/ 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
    â–¼
    <55-66-77-88-99-10
    Sennheiser CX 275S
    the average pair of headphones
    Sennheiser CX 275S has a higher user score than the average pair of headphones (8.74 vs 8).
    8.74 vs 8
  • 70.4% more popular
    Sennheiser CX 275S is more popular than the average pair of headphones (10 vs 5.9).
    10 vs 5.87
  • 9.3% higher user score
    User score
    8.7/ 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
    â–¼
    <55-66-77-88-99-10
    Sennheiser CX 275S
    the average pair of headphones
    Sennheiser CX 275S has a higher user score than the average pair of headphones (8.74 vs 8).
    8.74 vs 8
  • 93.1% lower weight
    This pair of headphones is lighter than the average pair of headphones (15 g vs 218 g). The average pair of headphones weighs 218 g.
    15 g vs 218 g
  • 19 dB/mW higher sensitivity
    This pair of headphones has a higher sensitivity than the average pair of headphones (121 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    121 dB/mW vs 102 dB/mW
  • 3,000 Hz higher treble extension
    This pair of headphones has a higher highest frequency than the average pair of headphones (23,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
    23,000 Hz vs 20,000 Hz
  • 18 dB SPL higher sound pressure level
    This pair of headphones has a higher sound pressure level than the average pair of headphones (121 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
    121 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.
  • 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.
  • 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 %
  • Tangle-prone cable
    This pair of headphones uses a tangle-prone cable, while the average pair of headphones is easier to manage. 64.2% of headphones use a tangle-free cable.
  • 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.
  • Tangle-prone cable
    This pair of headphones uses a tangle-prone cable, while the average pair of headphones is easier to manage. 64.2% of headphones use a tangle-free 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.

Video reviews

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

6.0
Unbiased Academy
≈ estimated
23/09/2020
Unboxing and review · sound and noise cancellation
Verdict
The Sennheiser CX 275S seems justified overall, but its noise cancellation is weak.
9.0
Sumith Chandran
≈ estimated
19/03/2019
Hands-on review · sound, comfort and phone test
Verdict
The Sennheiser CX 275S is good for the price and recommended to all users.
8.0
Dhananjay Bhosale
≈ estimated
16/03/2015
Hands-on review · bass, fit, pouch and call tests
Verdict
The Sennheiser CX 275S has clear, crisp bass and slightly better sound than the cheaper CX180, though the gain is small.
5.0
Mobilum
≈ estimated
28/06/2021
Unboxing · early listening test, full test pending
Verdict
The Sennheiser CX 275S sounds acceptable, but the reviewer is disappointed so far and it falls short of expectations.
9.0
Geekyranjit
≈ estimated
24/06/2020
Hands-on review · sound, microphone and cable
Verdict
Sennheiser CX 275S offers strong sound for music lovers at its price, but the cable could be better.
9.0
Explore with Sachin
≈ estimated
16/10/2019
Hands-on review · sound test on phone and renewed unit
Verdict
The Sennheiser CX 275S is definitely recommended as a renewed unit, with very good sound quality.
7.0
Swapneel
≈ estimated
12/06/2019
First look · unboxing and a few hours of listening
Verdict
The Sennheiser CX 275S is mainly useful for podcasts and films, though its sound is sharp and bass is weaker than rivals.
9.0
Mridul Mishra
≈ estimated
13/10/2018
Unboxing and review · sound and cable impressions
Verdict
The Sennheiser CX 275S has good overall sound, though bass is light for bass-heavy listeners.
9.0
That Indian Kid
✓ explicit
05/02/2016
Quick review · bass and build impressions
Verdict
The Sennheiser CX 275S has strong bass and good value, though the mic and thin wire feel fragile.
9.5
TechknowledgeTV
≈ estimated
24/12/2012
Hands-on review · sound tests, fit and build
Verdict
A superb pair with a comfortable fit and good sound at a reasonable price, with a fragile cable area.
Not graded
Not graded

Expert reviews

In-depth analysis and verdict from leading tech publications

whathifi.com
15/01/2013
Listening test · Budget in-ear
Verdict
The Sennheiser CX 275s is comfortable and well-balanced with an organised sound stage, but its glossy plastic is fiddly to fit and it doesn't justify its price.
pcmag.com
19/06/2013
Listening test · Bass-heavy in-ear
Verdict
The Sennheiser CX 275s is a powerful, fair-priced in-ear for bass lovers, but its tinny highs and volume-less remote hold it back in a crowded field.
uk.pcmag.com
14/06/2013
Hands-on test · Bass-boosted in-ear
Verdict
The Sennheiser CX 275s is a secure, lightweight in-ear built for deep, bass-heavy listening, though its tinny highs and volume-less remote hold it back.
hablandodemanzanas.com
Not Dated
Hands-on test · Everyday in-ear
Verdict
The Sennheiser CX 275s is a fun, bass-heavy everyday in-ear that replaces phone stock earbuds well, but it disappoints with vocals and is not for music lovers.

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 275S

  • Punchy, bass-driven sound signature ideal for EDM and bass-heavy genres
  • Lightweight and secure ergonomic fit that remains comfortable for long periods
  • High-quality inline microphone that provides clear call quality
  • Wide universal compatibility with most smartphones via the included adapter
  • Generous 2-year international warranty period
  • Included accessories such as a storage pouch and multiple ear tip sizes

What customers don't like about Sennheiser CX 275S

  • Fragile, thin cables that are prone to tangling and durability issues
  • Single-button inline remote lacks dedicated volume controls
  • Bass can occasionally muffle the midrange, leading to a lack of clarity in vocals
  • High frequencies can sound tinny or harsh at higher volume levels
  • Narrow soundstage makes audio feel less immersive or 'open'

Verdict

The Sennheiser CX 275s is a lightweight (15g), wired in-ear headset featuring 16-ohm impedance and high-powered dynamic drivers that deliver a 'bass-driven' frequency response from 17 Hz to 23,000 Hz. Designed for universal smartphone compatibility via a gold-plated 3.5mm jack, it includes an inline omnidirectional microphone and a single-button remote for managing calls and tracks on Android, iOS, and other platforms. Main pros include its powerful bass performance, comfortable ergonomic fit with three sizes of ear adaptors, and the inclusion of a storage pouch and adapter cable. However, notable cons include a thin cable prone to tangling, a lack of volume controls on the remote, and a narrow soundstage that may feel muddy to some listeners.

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