OVERALL
ALTERNATIVES
SPECS
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REVIEWS
Scored using Headphones Methodology v1.0
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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.
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Beyerdynamic T51i Review | 93 Data compared

Avg. price:~£220Form factor:on-earConnectivity:wiredBattery life:N/A hoursActive noise cancellation (ANC):no

Beyerdynamic T51i Review: Compare 93 technical specifications and user reviews to see how this product ranks in the Headphones category and whether it is worth buying.

Beyerdynamic T51i
6.1/10

Overall score

Score
6.1/ 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 54% of models
Score components

80%

6.1

Technical score

20%

?

User score

â–¼Worse than 54% 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%

6.1

Overall score

30%

9.4

Price

â–¼Worse than 67%
6.1

Technical score

Technical score
6.1/ 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–² Better than 61% of models
Score components

52%

6.9

Sound

20%

4.4

Features

10%

7.1

Design

8%

4.6

Connectivity

6%

4.0

Battery

4%

8.8

Calls & Controls

â–²Better than 61%
?

User score

User score
8.0/ 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 58% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

  • beyerdynamic-t51i
  • beyerdynamic-t51i
beyerdynamic-t51i
beyerdynamic-t51i
Where to buy
    N/A~ £220
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 Beyerdynamic T51i

Technical score
Technical score
6.1/ 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–² Better than 61% of models
Score components:

52%

6.9

Sound

20%

4.4

Features

10%

7.1

Design

8%

4.6

Connectivity

6%

4.0

Battery

4%

8.8

Calls & Controls

6.1
User score
User score
8.0/ 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 58% of models
Score components

70%

?

User ratings

30%

?

Number of reviews

?
Popularity
Popularity
1.0/ 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 99% of models
Popularity:
Beyerdynamic T51i has a popularity score of 1 point, which is lower than that of 73.4% of products in this category.
1.0
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%

6.1

Overall score

30%

9.4

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
30 mm
Market range: <10 mm – >50 mm
This pair of headphones uses a driver size of 30 mm, smaller driver size than 77.4% of headphones and equal to 4.3% 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
10 Hz
Market range: <5 Hz – >20 Hz
This pair of headphones reaches a lowest frequency of 10 Hz, lower lowest frequency than 67.2% of headphones and equal to 12.6% of headphones.
Show more
Noise-canceling microphone
yes
This pair of headphones supports a noise-canceling microphone. 61.1% 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
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
Beyerdynamic
Form factor
on-ear
Weight
174 g
Market range: <14 g – >340 g
This pair of headphones weighs 174 g, lighter than 63.3% of headphones and equal to 0.2% of headphones.
Acoustic design
closed-back
Clamp force
2.5
Market range: <2.5 – >6.1
This pair of headphones has a clamp force of 2.5, lower clamp force than 88.3% of headphones and equal to 3.7% of headphones.
Show more

Beyerdynamic T51i vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • Hi-Res Audio certification
    This pair of headphones has Hi-Res Audio certification, the average pair of headphones does not. 23.1% of headphones are Hi-Res Audio certified.
  • 0.29 % lower distortion
    This pair of headphones has a lower total harmonic distortion than the average pair of headphones (0 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    truncated comparator-only THD source; exact ceiling unresolved.
    0.01 % vs 0.3 %
  • 9 dB/mW higher sensitivity
    This pair of headphones has a higher sensitivity than the average pair of headphones (111 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    111 dB/mW vs 102 dB/mW
  • Clear call microphone
    This pair of headphones offers a clear call microphone, while the average pair of headphones does not. 39% of headphones support noise-canceling microphones.
  • 8 Hz lower bass extension
    This pair of headphones has a lower lowest frequency than the average pair of headphones (10 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    10 Hz vs 18 Hz
  • 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.
  • On-device controls
    This pair of headphones includes on-device controls, the average pair of headphones does not. 46.8% of headphones support on-device controls.
  • 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.
  • 1.8 lower clamp force
    This pair of headphones has a lower clamp force than the average pair of headphones (2.5 vs 4.3). The average headphones have a clamp force of 4.3.
    2.5 vs 4.3
  • 20.2% lower weight
    This pair of headphones is lighter than the average pair of headphones (174 g vs 218 g). The average pair of headphones weighs 218 g.
    174 g vs 218 g
  • Hi-Res Audio certification
    This pair of headphones has Hi-Res Audio certification, the average pair of headphones does not. 23.1% of headphones are Hi-Res Audio certified.
  • 0.29 % lower distortion
    This pair of headphones has a lower total harmonic distortion than the average pair of headphones (0 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    truncated comparator-only THD source; exact ceiling unresolved.
    0.01 % vs 0.3 %
  • 9 dB/mW higher sensitivity
    This pair of headphones has a higher sensitivity than the average pair of headphones (111 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    111 dB/mW vs 102 dB/mW
  • 8 Hz lower bass extension
    This pair of headphones has a lower lowest frequency than the average pair of headphones (10 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    10 Hz vs 18 Hz
  • 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
  • 21 dB higher max SPL
    This pair of headphones has a higher max SPL than the average pair of headphones (131 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.
    131 dB vs 110 dB
  • 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.
  • Clear call microphone
    This pair of headphones offers a clear call microphone, while the average pair of headphones does not. 39% of headphones support noise-canceling microphones.
  • On-device controls
    This pair of headphones includes on-device controls, the average pair of headphones does not. 46.8% of headphones support on-device controls.
  • 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.
  • 10 mm smaller driver size
    This pair of headphones has smaller driver size than the average pair of headphones (30 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    30 mm vs 40 mm
  • 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.
  • 5.87x less popular
    Beyerdynamic T51i is less popular than the average pair of headphones (1 vs 5.9).
    1 vs 5.87
  • 2.44x more expensive
    Beyerdynamic T51i is more expensive than the average pair of headphones (£220 vs £90).
    £220 vs £90
  • 2.3% worse value for money
    Beyerdynamic T51i has worse value for money than the average pair of headphones (7.11 vs 7.3).
    7.11 vs 7.27
  • 5.87x less popular
    Beyerdynamic T51i is less popular than the average pair of headphones (1 vs 5.9).
    1 vs 5.87
  • 2.44x more expensive
    Beyerdynamic T51i is more expensive than the average pair of headphones (£220 vs £90).
    £220 vs £90
  • 2.3% worse value for money
    Beyerdynamic T51i has worse value for money than the average pair of headphones (7.11 vs 7.3).
    7.11 vs 7.27
  • 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.
  • 10 mm smaller driver size
    This pair of headphones has smaller driver size than the average pair of headphones (30 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    30 mm vs 40 mm
  • 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

8.0
InnerFidelity
≈ estimated
06/03/2017
Hands-on review · frequency response and comfort
Verdict
Beyerdynamic T 51 i is a warm, well-built pair for listeners who like a laid-back sound, though not a neutral reference.
9.0
Booredatwork.com
≈ estimated
02/05/2014
Hands-on review · overview and microphone test
Verdict
Beyerdynamic T 51 i is a solid, stylish pair with balanced sound and a microphone that works well enough for calls.
Brand video
Not graded
Overview video
Not graded yet
Not graded yet
Not graded yet

Third-party reviews

What customers like about Beyerdynamic T51i

  • Excellent sound quality with clear, detailed audio and impactful bass
  • Premium build quality featuring durable brushed metal and spring steel construction
  • Lightweight and compact design, ideal for portable use and commuting
  • High level of comfort with soft memory foam ear pads and reasonable clamping force
  • Effective passive noise isolation that seals out ambient environment noise
  • Includes a high-quality, well-designed protective carrying case and various adapters
  • Integrated three-button inline remote and microphone for convenient calls and media control

What customers don't like about Beyerdynamic T51i

  • Fixed, non-detachable cable makes replacement difficult if damaged
  • Relatively high price point compared to some other portable on-ear competitors
  • Inline remote functionality is fully optimized for iOS, with limited compatibility for Android or Windows devices
  • Clamping force can feel tight for users with larger heads, potentially causing long-term discomfort
  • Buttons on the inline remote can be difficult to distinguish by touch
  • Sound signature is warm and bass-boosted, which may not appeal to those seeking a perfectly neutral profile

Verdict

The Beyerdynamic T51i are closed-back, on-ear portable headphones featuring proprietary Tesla technology with a 10Hz–23kHz frequency response and 32-ohm impedance, delivering a well-balanced sound with punchy bass, natural mids, and detailed highs. Notable characteristics include a durable all-metal construction weighing just 174g, memory foam earpads for comfort, and a 3-button in-line remote optimized for Apple iOS devices. Their main pros are exceptional sound precision, excellent passive noise isolation, and a sturdy, lightweight design ideal for commuting. Cons include a fixed (non-detachable) cable that can be prone to tangling and an on-ear clamp that may cause fatigue over extended listening sessions.

Compare Beyerdynamic T51i with other products in the Headphones category

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