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Sennheiser mm 70i Review | 93 Data compared

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  • Avg. price: ~£70
  • Form factor: in-ear
  • Connectivity: wired
  • Battery life: N/A hours
  • Active noise cancellation (ANC): no

Sennheiser mm 70i review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

5.2

Overall score

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 components:

80.0%

5.2

Technical Score

20.0%

?

User score

Good
5.2

Technical Score

What it is: An assessment of the headphones' technical performance, covering key areas such as sound quality, noise cancelling, microphone performance, battery life, comfort, connectivity, features, and build quality.

When it matters: When you want to compare headphones based on technical performance and available features.

Score components:

52.0%

5.2

Sound

20.0%

4.1

Features

10.0%

8.3

Design

8.0%

6.2

Connectivity

6.0%

1.0

Battery

4.0%

6.5

Calls & Controls

Good
?

User score

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 components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 2.1
    Gaming

    Score components:

    35.0%

    0.0

    Audio latency

    25.0%

    0.0

    Low-latency game mode

    20.0%

    10

    Can be used as a headset

    12.0%

    1.0

    Noise-canceling microphone

    8.0%

    0.0

    Battery life

  • 2.1
    Travel

    Score components:

    28.0%

    1.0

    Active noise cancellation (ANC)

    24.0%

    0.0

    Battery life

    18.0%

    10

    Weight

    16.0%

    0.0

    Multipoint support

    14.0%

    0.0

    Ambient sound mode

  • 2.7
    Calls

    Score components:

    28.0%

    1.0

    Noise-canceling microphone

    24.0%

    10

    Can be used as a headset

    18.0%

    0.0

    Multipoint support

    16.0%

    0.0

    Battery life

    14.0%

    0.0

    Companion app

  • 8.0
    Workout

    Score components:

    28.0%

    10

    Weight

    24.0%

    9.0

    Water resistance

    20.0%

    9.0

    IP rating

    16.0%

    0.0

    Battery life

    12.0%

    10

    Can be used as a headset

  • No image
No image

Best prices in UK

    N/A~ £70

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Sennheiser MM 70i are lightweight (13g) wired in-ear monitors featuring a 16-ohm impedance, 12 Hz – 22,000 Hz frequency response, and high-efficiency neodymium magnets for powerful, clear sound with effective passive noise isolation. Designed with an in-line remote and microphone tailored for iOS devices, they offer strong bass performance and comfortable ergonomics with multiple tip sizes included. Main pros include high-quality, detailed audio for the price, excellent noise reduction, and a durable 1.4m cable with a 3-button remote. Cons include limited full-feature compatibility with non-Apple devices, and some reports of average cable longevity.

Technical Specifications of Sennheiser mm 70i

Technical Score

What it is: An assessment of the headphones' technical performance, covering key areas such as sound quality, noise cancelling, microphone performance, battery life, comfort, connectivity, features, and build quality.

When it matters: When you want to compare headphones based on technical performance and available features.

Score components:

52.0%

?

Sound

20.0%

?

Features

10.0%

?

Design

8.0%

?

Connectivity

6.0%

?

Battery

4.0%

?

Calls & Controls

5.2
Sennheiser mm 70i has a technical score of 5.17 points, which is higher than that of 58.9% of products in this category.
User score

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 components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
Popularity
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.
1.0
Sennheiser mm 70i has a popularity of 1 points, which is lower than 72.7% of products in this category.
Ratio quality/price

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 components:

60.0%

5.2

Overall score

40.0%

10

Price

6.6
Sennheiser mm 70i has a quality-to-price ratio of 6.6 points, which is lower than 54.9% of products in this category.
Active noise cancellation (ANC)
What it is: Reduces background noise using active technology
When it matters: When blocking office, travel, or aircraft noise is a priority.

Importance: HIGH

no
Sennheiser mm 70i does not support active noise cancellation. 27.4% of headphones support active noise cancellation.
Driver type
What it is: Type of speaker driver technology used
When it matters: When the underlying sound character and driver technology matter to you.

Importance: MEDIUM

dynamic
Driver size
What it is: Diameter of the speaker driver unit
When it matters: When you want extra hardware context behind how the headphones may handle bass weight, scale, or overall presentation.

Importance: MEDIUM

?
Number of drivers
What it is: Total number of speaker drivers per earcup
When it matters: When multi-driver designs are part of your buying criteria.

Importance: LOW

1
Sennheiser mm 70i uses 1 drivers, equal to 96% of headphones.
Lowest frequency
What it is: Lowest audio frequency the headphones can reproduce
When it matters: When deeper bass extension matters for your music or movie listening.

Importance: MEDIUM

Good value: <=10 Hz

12 Hz
Sennheiser mm 70i reaches a lowest frequency of 12 Hz, lower lowest frequency than 65.1% of headphones and equal to 2% of headphones.
Show more
Noise-canceling microphone
What it is: Built-in microphone reduces background noise during calls
When it matters: When you take calls in busy spaces and want your voice to stay clearer.

Importance: MEDIUM

no
Sennheiser mm 70i does not support a noise-canceling microphone. 45.6% of headphones support noise-canceling microphones.
Can be used as a headset
What it is: Shows whether the headphones can handle voice chat and calls in addition to normal audio playback.
When it matters: When one pair needs to cover music, calls, meetings, and gaming chat.

Importance: MEDIUM

yes
Sennheiser mm 70i is headset-ready, 84.7% is not. 15.3% of headphones can be used as headsets.
Number of microphones
What it is: Total number of built-in microphones
When it matters: When call pickup quality and beamforming support matter to you.

Importance: LOW

Good value: >=2

1
Sennheiser mm 70i has 1 microphones, more microphones than 25.9% of headphones and equal to 52.2% of headphones.
Boom microphone
What it is: Includes detachable boom microphone for voice clarity
When it matters: When you need stronger voice clarity for gaming, streaming, or work calls.

Importance: LOW

no
Sennheiser mm 70i does not include a boom microphone. 15.6% of headphones have a boom microphone.
Microphone SNR
What it is: Signal-to-noise ratio of the microphone
When it matters: When call clarity matters and you want your voice picked up more cleanly instead of buried in background hiss.

Importance: LOW

Good value: >80 dB

?
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Connectivity
What it is: Available connection methods (wired, wireless, Bluetooth, etc.)
When it matters: When the headphones need to match how you listen across wired and wireless devices.

Importance: HIGH

wired
Sennheiser mm 70i supports wired connectivity, equal to 52.6% of headphones.
Bluetooth version
What it is: Version of Bluetooth technology supported
When it matters: When wireless stability, efficiency, and feature support matter more than treating Bluetooth as a box-check spec.

Importance: MEDIUM

Good value: >=5.0

N/A
Maximum Bluetooth range
What it is: Maximum wireless operating distance from source device
When it matters: When you move around rooms and want fewer dropouts from your source device.

Importance: LOW

Good value: >=10 m

N/A
Audio latency
What it is: Delay between audio and video in wireless mode
When it matters: When you watch video or play games and need sound to stay in sync.

Importance: HIGH

Good value: <60 ms

N/A
Multipoint support
What it is: Supports simultaneous connections to multiple devices
When it matters: When you switch often between a phone and a laptop during the day.

Importance: MEDIUM

N/A
Show more
Ambient sound mode
What it is: Allows external sounds to pass through for awareness
When it matters: When you need to stay aware of traffic, voices, or announcements.

Importance: MEDIUM

N/A
EQ support
What it is: Allows customization of sound profile via equalizer
When it matters: When the stock tuning is not enough and you want to shape bass, mids, or treble to match your taste.

Importance: MEDIUM

no
Sennheiser mm 70i does not support EQ customization. 23.3% of headphones support EQ.
Companion app
What it is: Dedicated mobile app for customization and updates
When it matters: When software customization, updates, and extra controls matter.

Importance: MEDIUM

N/A
Adjustable ANC levels
What it is: Allows adjustment of noise cancellation intensity levels
When it matters: When you move between quiet rooms, offices, streets, and public transport and do not want one ANC setting for every situation.

Importance: LOW

Good value: >=4

N/A
Voice assistant support
What it is: Compatible with voice assistants like Siri, Alexa, or Google Assistant
When it matters: When hands-free control is part of your daily routine.

Importance: LOW

yes
Sennheiser mm 70i supports voice assistants. 39.2% of headphones support voice assistants.
Show more
Battery life
What it is: Playback time on a single charge
When it matters: When you commute, travel, or work long shifts and do not want charging breaks to interrupt listening.

Importance: HIGH

Good value: >45 hours

N/A
Battery life with ANC
What it is: Playback time with active noise cancellation enabled
When it matters: When you plan to keep noise cancellation on for most of the day.

Importance: HIGH

Good value: >40 hours

N/A
Charging time
What it is: Time required for a full battery charge
When it matters: When you often need the headphones ready again after short breaks.

Importance: MEDIUM

Good value: <=2 hours

N/A
Quick charge
What it is: Provides quick playback time with short charging period
When it matters: When a short top-up needs to deliver useful playback before you leave.

Importance: MEDIUM

N/A
Battery capacity
What it is: Total energy storage of the internal battery
When it matters: When you are estimating how much battery headroom the design may have before relying only on the official runtime claim.

Importance: MEDIUM

Good value: >=720 mAh

N/A
Show more
Brand name
What it is: The manufacturer or brand of the product.
When it matters: When you prefer a specific ecosystem, support network, or design philosophy.

Importance: MEDIUM

Sennheiser
Form factor
What it is: Overall design type of the headphones (over-ear, on-ear, in-ear, etc.)
When it matters: When comfort, portability, and isolation depend on the overall headphone style.

Importance: HIGH

in-ear
Weight
What it is: Total weight of the headphones
When it matters: When long listening sessions make wearing comfort more important.

Importance: MEDIUM

Good value: <150 g

13 g
Sennheiser mm 70i weighs 13 g, lighter than 91.5% of headphones and equal to 0.7% of headphones.
Acoustic design
What it is: Type of acoustic design (open-back, closed-back, semi-open)
When it matters: When you need the right balance of isolation, leakage, and soundstage.

Importance: HIGH

closed-back
Clamp force
What it is: Amount of clamping pressure applied to the head
When it matters: When comfort and fit security matter during long sessions.

Importance: MEDIUM

N/A
Show more

Sennheiser mm 70i vs the average headphone

  • 94% lower weight
    Sennheiser mm 70i is lighter than the average headphone (13 g vs 218 g). The average pair of headphones weighs 218 g.
    What it is: Total weight of the headphones
    When it matters: When long listening sessions make wearing comfort more important.

    Importance: MEDIUM

    Good value: <150 g

    Sennheiser mm 70i is lighter than the average headphone (13 g vs 218 g). The average pair of headphones weighs 218 g.13 g vs 218 g
  • 14 dB/mW higher sensitivity
    Sennheiser mm 70i has a higher sensitivity than the average headphone (116 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    What it is: Sound pressure output level per unit of input power
    When it matters: When you plan to use weaker sources like phones, handhelds, or entry-level dongles and still want enough volume.

    Importance: MEDIUM

    Good value: >=106 dB/mW

    Sennheiser mm 70i has a higher sensitivity than the average headphone (116 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.116 dB/mW vs 102 dB/mW
  • Direct 3.5 mm plug
    Sennheiser mm 70i includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
    What it is: Shows whether the headphones end in a built-in 3.5 mm male plug instead of relying on a separate detachable cable.
    When it matters: When direct wired compatibility with older devices or adapters matters.

    Importance: MEDIUM

    Sennheiser mm 70i includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
  • On-device controls
    Sennheiser mm 70i includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
    What it is: Physical controls available directly on headphones
    When it matters: When you need playback, volume, or call controls to be easy to reach without pulling out your phone.

    Importance: MEDIUM

    Sennheiser mm 70i includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
  • In-line controls
    Sennheiser mm 70i includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
    What it is: Controls available on in-line remote of wired cable
    When it matters: When your wired setup depends on cable-mounted buttons or call controls.

    Importance: LOW

    Sennheiser mm 70i includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
  • 6 Hz lower bass extension
    Sennheiser mm 70i has a lower lowest frequency than the average headphone (12 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    What it is: Lowest audio frequency the headphones can reproduce
    When it matters: When deeper bass extension matters for your music or movie listening.

    Importance: MEDIUM

    Good value: <=10 Hz

    Sennheiser mm 70i has a lower lowest frequency than the average headphone (12 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.12 Hz vs 18 Hz
  • Wind noise reduction
    Sennheiser mm 70i reduces wind noise, the average headphone does not. 34.1% of headphones support wind noise reduction.
    What it is: Reduces wind interference for clearer outdoor calls
    When it matters: When you take calls outdoors while walking, cycling, or commuting.

    Importance: LOW

    Sennheiser mm 70i reduces wind noise, the average headphone does not. 34.1% of headphones support wind noise reduction.
  • 2,000 Hz higher treble extension
    Sennheiser mm 70i has a higher highest frequency than the average headphone (22,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
    What it is: Highest audio frequency the headphones can reproduce
    When it matters: When treble extension and overall frequency reach matter to you.

    Importance: MEDIUM

    Good value: >=24000 Hz

    Sennheiser mm 70i has a higher highest frequency than the average headphone (22,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.22000 Hz vs 20000 Hz
  • 94% lower weight
    Sennheiser mm 70i is lighter than the average headphone (13 g vs 218 g). The average pair of headphones weighs 218 g.
  • 14 dB/mW higher sensitivity
    Sennheiser mm 70i has a higher sensitivity than the average headphone (116 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
  • 6 Hz lower bass extension
    Sennheiser mm 70i has a lower lowest frequency than the average headphone (12 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
  • 2,000 Hz higher treble extension
    Sennheiser mm 70i has a higher highest frequency than the average headphone (22,000 Hz vs 20,000 Hz). The average headphones reach a highest frequency of 20,000 Hz.
  • Direct 3.5 mm plug
    Sennheiser mm 70i includes a direct 3.5 mm plug, the average headphone does not. 38.8% of headphones have a 3.5 mm male connector.
  • On-device controls
    Sennheiser mm 70i includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
  • In-line controls
    Sennheiser mm 70i includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
  • Wind noise reduction
    Sennheiser mm 70i reduces wind noise, the average headphone does not. 34.1% of headphones support wind noise reduction.

Total
Design
Sound
Connectivity
Calls & Controls
  • Fixed cable
    Sennheiser mm 70i has a fixed cable, while the average headphone has a detachable one. 62% of headphones have a detachable cable.
  • 0.2 % higher distortion
    Sennheiser mm 70i has a higher total harmonic distortion than the average headphone (0.5 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
  • 7 years older release date
    Sennheiser mm 70i was released earlier than the average headphone (2,010 vs 2,017). The average headphones were released in 2,017.
    September 2010
  • Fixed cable
    Sennheiser mm 70i has a fixed cable, while the average headphone has a detachable one. 62% of headphones have a detachable cable.
    What it is: Cable can be removed or replaced
    When it matters: When you care about easier cable replacement, simpler storage, or the option to swap to shorter, longer, or upgraded leads.

    Importance: MEDIUM

    Sennheiser mm 70i has a fixed cable, while the average headphone has a detachable one. 62% of headphones have a detachable cable.
  • 4.65x less popular
    Sennheiser mm 70i is less popular than the average headphone (1.00 vs 4.646).
    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.
    Sennheiser mm 70i is less popular than the average headphone (1.00 vs 4.646).1 vs 4.65
  • 0.2 % higher distortion
    Sennheiser mm 70i has a higher total harmonic distortion than the average headphone (0.5 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    What it is: Percentage of harmonic distortion in audio output
    When it matters: When cleaner sound reproduction matters at louder volumes.

    Importance: LOW

    Good value: <=1%

    Sennheiser mm 70i has a higher total harmonic distortion than the average headphone (0.5 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.0.5 % vs 0.3 %
  • 7 years older release date
    Sennheiser mm 70i was released earlier than the average headphone (2,010 vs 2,017). The average headphones were released in 2,017.
    September 2010
    What it is: Official release or launch date of the model
    When it matters: When you want a newer model for fresher features, longer support life, or simply to avoid buying into an older generation.

    Importance: LOW

    Good value: >=2020

    Sennheiser mm 70i was released earlier than the average headphone (2,010 vs 2,017). The average headphones were released in 2,017.2010 vs 2017
Total
Overall
Design
Sound
Features

Graphic comparison of Sennheiser mm 70i and

Attribute category
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Third-party reviews

What customers like about Sennheiser mm 70i?

  • Superior high-frequency performance, particularly suited for rock and instrumental music
  • Effective passive noise isolation due to a tight acoustic seal
  • Lightweight and comfortable design suitable for long listening sessions
  • Generous accessory package including a carrying pouch, cable winder, and multiple ear tip sizes
  • Integrated 3-button in-line remote for volume and playback control

What customers dislike about Sennheiser mm 70i?

  • Underwhelming bass definition and overall sound quality relative to its price point
  • Limited compatibility with non-Apple devices, especially Android
  • Cheap and 'plasticky' build materials for the control interface and earpieces
  • Small, stunted earpieces can be difficult to insert and remove for some users
  • Lack of high-mid presence can make some tracks feel less crisp

Expert reviews

C
cultofmac.com
19/10/2011
Sennheiser MM 70 iP Earphones: The Featherweight [Review]

The Sennheiser MM 70 iP earphones ($100 MSRP, often found for less) are an ultra-lightweight pair of canalphones designed for active iPhone users looking to interact with Siri or make hands-free calls. Their standout feature is a featherweight design paired with an asymmetrical cable layout—where the left wire is shorter than the right—making them feel virtually weightless and...Read more

P
pcmag.com
13/06/2013
Sennheiser MM 70s Review

The $99.95 Sennheiser MM 70s in-ear headphones deliver powerful, distortion-free bass and feature a lightweight, comfortable design with a robust accessory package. They offer excellent value for mobile users through an integrated microphone, call-handling, and an independent volume slider. However, the sound signature is heavily weighted towards the low end, lacking high-mid...Read more

H
hifitest.de
15/03/2011
Sennheiser MM70i - In-Ear Headphones Review

The HifiTest review awards the Sennheiser MM70i in-ear headphones an impressive 4.5 out of 5 stars, placing them firmly in their "Oberklasse" (Upper Class) category. Priced around 80 Euros, these wired earphones heavily resemble their older CX-series predecessors but introduce an in-line cable remote specifically tailored to control Apple devices like the iPhone and the iPod family....Read more

(Translated)Show original

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