OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
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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Blue Sadie Review | 93 Data compared

Avg. price:~£70Form factor:over-earConnectivity:wiredBattery life:N/A hoursActive noise cancellation (ANC):no

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

Blue Sadie
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 56% of models
Score components

80%

5.7

Technical score

20%

7.7

User score

â–¼Worse than 56% of headphones
7.3

Value for money

Value for money
7.3/ 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 51% of models
Score components

70%

6.1

Overall score

30%

10

Price

â–¼Worse than 51%
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 62% of models
Score components

52%

6.4

Sound

20%

4.4

Features

10%

5.6

Design

8%

4.0

Connectivity

6%

5.0

Battery

4%

7.4

Calls & Controls

â–¼Worse than 62%
7.7

User score

User score
7.7/ 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–¼ Worse than 68% of models
Score components

70%

8.4

User ratings

30%

6.1

Number of reviews

Based on ratings from across the web.
â–¼Worse than 68%
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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 Blue Sadie

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 62% of models
Score components:

52%

6.4

Sound

20%

4.4

Features

10%

5.6

Design

8%

4.0

Connectivity

6%

5.0

Battery

4%

7.4

Calls & Controls

5.7
User score
User score
7.7/ 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–¼ Worse than 68% of models
Score components

70%

8.4

User ratings

30%

6.1

Number of reviews

Based on ratings from across the web.
7.7
Popularity
Popularity
6.1/ 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 52% of models
Popularity:
Blue Sadie has a popularity score of 6.1 points, which is higher than that of 52.2% of products in this category.
6.1
Value for money
Value for money
7.3/ 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 51% of models
Score components:

70%

6.1

Overall score

30%

10

Price

7.3
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
50 mm
Market range: <10 mm – >50 mm
This pair of headphones uses a driver size of 50 mm, larger driver size than 86.3% of headphones and equal to 8.2% 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
15 Hz
Market range: <5 Hz – >20 Hz
This pair of headphones reaches a lowest frequency of 15 Hz, lower lowest frequency than 58.3% of headphones and equal to 5.8% 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
3.5 hours
Market range: <1.5 hours – >3.5 hours
This pair of headphones needs 3.5 hours to charge, higher charging time than 87.8% of headphones and equal to 2.7% of headphones.
source range 3-4 h.
Quick charge
no
This pair of headphones does not support quick charging. 33.1% of headphones support quick charge.
Battery capacity
1,000 mAh
Market range: <290 mAh – >1k mAh
This pair of headphones has a battery capacity of 1,000 mAh, higher battery capacity than 86% of headphones and equal to 4.8% of headphones.
Show more
Brand name
Blue
Form factor
over-ear
Weight
444 g
Market range: <14 g – >340 g
This pair of headphones weighs 444 g, heavier than 96.9% of headphones.
Acoustic design
closed-back
Clamp force
?
Show more

Blue Sadie vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • 10 mm larger driver size
    This pair of headphones uses a larger driver size than the average pair of headphones (50 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    50 mm vs 40 mm
  • 0.3 % 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 %.
    0.004 % vs 0.3 %
  • 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.
  • 72.4% higher battery capacity
    This pair of headphones has a higher battery capacity than the average pair of headphones (1,000 mAh vs 580 mAh). The average headphones have a battery capacity of 580 mAh.
    1,000 mAh vs 580 mAh
  • Foldable design
    This pair of headphones has a foldable design, the average pair of headphones does not. 48.3% of headphones are foldable.
  • 13 mm more spacious earcup width
    This pair of headphones offers more spacious earcup width than the average pair of headphones (57 mm vs 44 mm). The average headphones offer an inner earcup width of 44 mm.
    57 mm vs 44 mm
  • Quick mic mute
    This pair of headphones includes a quick mic mute, the average pair of headphones does not. 29.3% of headphones support a mute function.
  • Foldable design
    This pair of headphones has a foldable design, the average pair of headphones does not. 48.3% of headphones are foldable.
  • 13 mm more spacious earcup width
    This pair of headphones offers more spacious earcup width than the average pair of headphones (57 mm vs 44 mm). The average headphones offer an inner earcup width of 44 mm.
    57 mm vs 44 mm
  • 10 mm larger driver size
    This pair of headphones uses a larger driver size than the average pair of headphones (50 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    50 mm vs 40 mm
  • 0.3 % 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 %.
    0.004 % vs 0.3 %
  • 3 dB/mW higher sensitivity
    This pair of headphones has a higher sensitivity than the average pair of headphones (105 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    105 dB/mW vs 102 dB/mW
  • 3 Hz lower bass extension
    This pair of headphones has a lower lowest frequency than the average pair of headphones (15 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    15 Hz vs 18 Hz
  • 72.4% higher battery capacity
    This pair of headphones has a higher battery capacity than the average pair of headphones (1,000 mAh vs 580 mAh). The average headphones have a battery capacity of 580 mAh.
    1,000 mAh vs 580 mAh
  • Play while charging
    This pair of headphones can play while charging, the average pair of headphones cannot. 29.1% of headphones support play while charging.
  • Rechargeable battery
    This pair of headphones has a rechargeable battery, the average pair of headphones does not. 47.9% of headphones have a rechargeable battery.
  • 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.
  • Quick mic mute
    This pair of headphones includes a quick mic mute, the average pair of headphones does not. 29.3% of headphones support a mute function.
  • 2.04x higher weight
    This pair of headphones is heavier than the average pair of headphones (444 g vs 218 g). The average pair of headphones weighs 218 g.
    444 g vs 218 g
  • 1.5 hours longer charging time
    This pair of headphones has a higher charging time than the average pair of headphones (3.5 hours vs 2 hours). The average headphones need 2 hours to charge.
    source range 3-4 h.
    3.5 hours vs 2 hours
  • 5 mm tighter earcup height
    This pair of headphones has tighter earcup height than the average pair of headphones (55 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
    55 mm vs 60 mm
  • 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.
  • 16 dB lower max SPL
    This pair of headphones has a lower max SPL than the average pair of headphones (94 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.
    94 dB vs 110 dB
  • 3.9% lower user score
    User score
    7.7/ 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
    ▼▼
    <55-66-77-88-99-10
    Blue Sadie
    the average pair of headphones
    Blue Sadie has a lower user score than the average pair of headphones (7.7 vs 8).
    7.7 vs 8
  • 3.9% lower user score
    User score
    7.7/ 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
    ▼▼
    <55-66-77-88-99-10
    Blue Sadie
    the average pair of headphones
    Blue Sadie has a lower user score than the average pair of headphones (7.7 vs 8).
    7.7 vs 8
  • 2.04x higher weight
    This pair of headphones is heavier than the average pair of headphones (444 g vs 218 g). The average pair of headphones weighs 218 g.
    444 g vs 218 g
  • 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.
  • 5 mm tighter earcup height
    This pair of headphones has tighter earcup height than the average pair of headphones (55 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
    55 mm vs 60 mm
  • 16 dB lower max SPL
    This pair of headphones has a lower max SPL than the average pair of headphones (94 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.
    94 dB vs 110 dB
  • 1.5 hours longer charging time
    This pair of headphones has a higher charging time than the average pair of headphones (3.5 hours vs 2 hours). The average headphones need 2 hours to charge.
    source range 3-4 h.
    3.5 hours vs 2 hours

Video reviews

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

6.0
MrAyrit
≈ estimated
23/04/2022
Long-term use review · build, sound and charging
Verdict
Blue Sadie is an interesting headphone with a warm, enjoyable sound, but the odd build makes it hard to recommend broadly.
9.5
Copper vs Glass
≈ estimated
15/12/2017
Hands-on review · sound, comfort and built-in amp tests
Verdict
Blue Sadie is among the best headphones tested, with excellent sound and comfort, though pricier than rivals.
8.0
WhatGear
≈ estimated
07/06/2017
First impressions · unboxing and design
Verdict
Blue Sadie looks and feels premium so far, with sound and amplifier still to be tested.
Overview video
Overview video
Overview video
Overview video
Shop video
Overview video
Overview video

Expert reviews

In-depth analysis and verdict from leading tech publications

wired.com
07/03/2018
Listening review · Home-use over-ear headphones
Verdict
The Blue Sadie sounds warm, natural and balanced with its built-in amp, but nearly a pound of weight keeps it a home pair.
pcmag.com
27/01/2017
Hands-on review · Bulky over-ear design
Verdict
The Blue Sadie sounds clear, crisp and rich in bass across its two powered modes, but its bulk and weight will not suit everyone.
headphonereview.com
25/02/2017
Hands-on review · Comfort and sound
Verdict
The Blue Sadie is a comfortable, sleek-looking pair with a strong built-in amp, best for audiophiles who don't want a separate amp.
uk.pcmag.com
27/01/2017
Hands-on review · Built-in amp headphones
Verdict
The Blue Sadie is a well-padded, clear-sounding pair for listeners who want an amp and don't mind a bulky frame.
ilounge.com
14/05/2021
Hands-on review · Amplified headphones
Verdict
The Blue Sadie is a warm, clean-sounding headphone that performs well across genres, though its heavy build can tire you on long sessions.
au.pcmag.com
28/01/2017
Sound review · Three-mode headphones
Verdict
The Blue Sadie is a clear-sounding headphone with three listening modes, though its heavy build will not suit everyone.
A
afr.com
27/08/2018
Summary of the review
Blue Sadie: The ugliest headphones may leave you with a smile
cravingtech.com
30/08/2018
Personal review · Passive-isolation headphones
Verdict
The Blue Sadie is a comfortable headphone with strong passive isolation that suits planes, but is too isolating for work or commuting.
musictech.com
23/04/2018
Studio review · Mixing headphones
Verdict
The Blue Sadie is a comfortable, pleasantly flat headphone that is good for the money, but serious mixers should still choose the Ella.
pocketinsider.com
17/04/2017
Hands-on review · Ella's sibling
Verdict
The Blue Sadie is a pleasant, well-built headphone that needs its amp for proper bass, though the Ella offers more warmth.
bgr.com
30/04/2017
Hands-on review · Wired amp headphones
Verdict
The Blue Sadie sounds clear and warm with a good fit, but is expensive for a wired pair that relies on your phone's audio.
the-gadgeteer.com
03/04/2017
Comparison review · Sadie versus Ella
Verdict
The Blue Sadie is a solid, comfortable alternative to the Ella with a more traditional build, though it lacks the Ella's planar drivers.
techaeris.com
25/03/2017
Consumer review · Built-in amp headphones
Verdict
The Blue Sadie is a heavy, roomy headphone with clear sound and a deep low end in amp mode, best suited to everyday listeners rather than audiophiles.
kopfhoerer.de
08/06/2018
Hands-on review · Amplified over-ear headphones
Verdict
The Blue Sadie is a smooth-sounding over-ear pair that sounds best with its amp switched on, suiting home use, travel and light studio mixing.
bonedo.de
09/10/2017
Hands-on test · Amplified closed-back headphones
Verdict
The Blue Sadie is a sturdy, largely linear over-ear pair with strong amp power, but its 444g weight is its main drawback.

Third-party reviews

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

What customers like about Blue Sadie

  • High-quality built-in analog audiophile amplifier with three modes: Passive, On, and On+ for bass boost
  • Clear, warm, and detailed sound profile with well-tuned mid-range and articulated highs
  • Unique, premium build quality inspired by Formula 1 suspension with sturdy metal frames
  • Surprisingly comfortable for many users despite its weight, thanks to generous headband and earcup padding
  • Effective passive noise isolation due to the sealed over-ear design and thick cushions
  • Smart power management that automatically turns off the amp when the earcups are closed together

What customers don't like about Blue Sadie

  • Notably heavy at nearly 1 lb (approx. 444g), which can cause neck fatigue during very long sessions
  • Bulky, non-folding design makes them poorly suited for commuting or portable use
  • High retail price point (typically around $399) may be a barrier for some buyers
  • Requires frequent charging via micro-USB for the built-in amplifier, which provides about 12 hours of use
  • The unique articulated headband design can feel like a 'vice' or exert too much clamping pressure for some head shapes
  • Soundstage is described by some reviewers as slightly narrow or congested compared to open-back alternatives

Verdict

The Blue Sadie is a premium closed-back over-ear headphone featuring 50mm fiber-reinforced dynamic drivers and a built-in audiophile amplifier designed to deliver high-fidelity audio from mobile devices and laptops. Key specifications include a frequency response of 15Hz–20kHz, 42-ohm impedance, and a rechargeable battery providing up to 12 hours of active playtime across three analog modes: passive (off), active (on), and a bass-boosting 'On+' mode. Its primary strengths lie in its powerful 240mW output that provides rich lows and articulate highs without external amplification, alongside a unique multi-jointed headband inspired by Formula One suspension for a consistent parallel earcup fit. However, the headphones are notably heavy at approximately 444g (nearly 1lb), making them bulky for commuting, and some users find the high-end frequency response slightly sculpted rather than perfectly flat.

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