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Blue Sadie Review | 93 Data compared

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

Blue Sadie review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

5.4

Good

4.9

Poor

7.4

Very good

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
0.5
Travel
Score components:
28.0%
1.0
Active noise cancellation (ANC)
24.0%
0.0
Battery life
18.0%
1.0
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
2.5
Workout
Score components:
28.0%
1.0
Weight
24.0%
1.0
Water resistance
20.0%
4.0
IP rating
16.0%
0.0
Battery life
12.0%
10
Can be used as a headset

Best prices in UK

£?

Best rankings

#545 in Best Over Ear Headphones
#871 in Best Headphones with Mic

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.

Technical Specifications of Blue Sadie

Overall score

5.4

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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.

Sound

5.2

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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

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

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

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Calls & Controls

6.3

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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

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

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

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

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

2.9

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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

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

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Features

4.1

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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

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

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Battery

5.7

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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

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

?

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

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Design

5.4

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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

Blue

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

over-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

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

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Blue Sadie vs the average headphone

Why is Blue Sadie better than the average headphone?

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10 mm larger driver size
Blue Sadie uses a larger driver size than the average headphone (50 mm vs 40 mm). The average headphones use a driver size of 40 mm.
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
Blue Sadie uses a larger driver size than the average headphone (50 mm vs 40 mm). The average headphones use a driver size of 40 mm.50 mm vs 40 mm
0.3 % lower distortion
Blue Sadie has a lower total harmonic distortion than the average headphone (0 % 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%
Blue Sadie has a lower total harmonic distortion than the average headphone (0 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.0.004 % vs 0.3 %
On-device controls
Blue Sadie 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
Blue Sadie includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
In-line controls
Blue Sadie 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
Blue Sadie includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
66.7% higher battery capacity
Blue Sadie has a higher battery capacity than the average headphone (1,000 mAh vs 600 mAh). The average headphones have a battery capacity of 600 mAh.
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
Blue Sadie has a higher battery capacity than the average headphone (1,000 mAh vs 600 mAh). The average headphones have a battery capacity of 600 mAh.1000 mAh vs 600 mAh
Foldable design
Blue Sadie has a foldable design, the average headphone does not. 61% of headphones are foldable.
What it is: Earcups or headband can fold for compact storage
When it matters: When you travel often and want easier storage in a bag.
Importance: LOW
Blue Sadie has a foldable design, the average headphone does not. 61% of headphones are foldable.
Quick mic mute
Blue Sadie includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
What it is: Ability to mute microphone during calls
When it matters: When you need to silence the mic quickly during meetings or multiplayer games.
Importance: LOW
Blue Sadie includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.
3 dB/mW higher sensitivity
Blue Sadie has a higher sensitivity than the average headphone (105 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
Blue Sadie has a higher sensitivity than the average headphone (105 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.105 dB/mW vs 102 dB/mW
Foldable design
Blue Sadie has a foldable design, the average headphone does not. 61% of headphones are foldable.
10 mm larger driver size
Blue Sadie uses a larger driver size than the average headphone (50 mm vs 40 mm). The average headphones use a driver size of 40 mm.
0.3 % lower distortion
Blue Sadie has a lower total harmonic distortion than the average headphone (0 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
3 dB/mW higher sensitivity
Blue Sadie has a higher sensitivity than the average headphone (105 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
3 Hz lower bass extension
Blue Sadie has a lower lowest frequency than the average headphone (15 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
66.7% higher battery capacity
Blue Sadie has a higher battery capacity than the average headphone (1,000 mAh vs 600 mAh). The average headphones have a battery capacity of 600 mAh.
Rechargeable battery
Blue Sadie has a rechargeable battery, the average headphone does not. 47.9% of headphones have a rechargeable battery.
Play while charging
Blue Sadie can play while charging, the average headphone cannot. 55.9% of headphones support play while charging.
On-device controls
Blue Sadie includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
In-line controls
Blue Sadie includes in-line controls, the average headphone does not. 36.4% of headphones support in-line controls.
Quick mic mute
Blue Sadie includes a quick mic mute, the average headphone does not. 33.5% of headphones support a mute function.

Calls & Controls

Why is Blue Sadie worse than the average headphone?

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2.04x higher weight
Blue Sadie is heavier than the average headphone (444 g vs 218 g). The average pair of headphones weighs 218 g.
5 mm tighter earcup height
Blue Sadie has tighter earcup height than the average headphone (55 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
Tangle-prone cable
Blue Sadie uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
16 dB lower max SPL
Blue Sadie has a lower max SPL than the average headphone (94 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.
1.5 hours longer charging time
Blue Sadie has a higher charging time than the average headphone (3.5 hours vs 2 hours). The average headphones need 2 hours to charge.
source range 3-4 h.
2.04x higher weight
Blue Sadie is heavier than the average headphone (444 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
Blue Sadie is heavier than the average headphone (444 g vs 218 g). The average pair of headphones weighs 218 g.444 g vs 218 g
1.5 hours longer charging time
Blue Sadie has a higher charging time than the average headphone (3.5 hours vs 2 hours). The average headphones need 2 hours to charge.
source range 3-4 h.
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
Blue Sadie has a higher charging time than the average headphone (3.5 hours vs 2 hours). The average headphones need 2 hours to charge.3.5 hours vs 2 hours
5 mm tighter earcup height
Blue Sadie has tighter earcup height than the average headphone (55 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.
What it is: Internal height of the earcup cavity
When it matters: When larger ears need enough space inside the earcups.
Importance: MEDIUM
Blue Sadie has tighter earcup height than the average headphone (55 mm vs 60 mm). The average headphones offer an inner earcup height of 60 mm.55 mm vs 60 mm
Tangle-prone cable
Blue Sadie uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
What it is: Cable designed to resist tangling
When it matters: When you often carry wired headphones in a bag or pocket.
Importance: LOW
Blue Sadie uses a tangle-prone cable, while the average headphone is easier to manage. 64.2% of headphones use a tangle-free cable.
16 dB lower max SPL
Blue Sadie has a lower max SPL than the average headphone (94 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.
What it is: Maximum safe sound pressure level
When it matters: When high-volume headroom is part of your use case.
Importance: LOW
Good value: >=116 dB
Blue Sadie has a lower max SPL than the average headphone (94 dB vs 110 dB). The average headphones reach a max SPL of 110 dB.94 dB vs 110 dB
8.1% lower user score
Blue Sadie has a lower user score than the average headphone (7.40 vs 8.000).
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.
Blue Sadie has a lower user score than the average headphone (7.40 vs 8.000).7.4 vs 8

Graphic comparison of Blue Sadie and

Attribute category

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Third-party reviews

United Kingdom

United States

(Reviews last updated: June 2026)

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 dislike 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

Expert reviews

head-fi.org

08/08/2018

Blue Sadie Review - Headphones with a Secret Weapon! 💡 Note: These articles focus specifically on the Blue Sadie model, which features a built-in aud...

The Blue Sadie review on Head-Fi highlights these wired, closed-back headphones, emphasizing their built-in amplifier as a "secret weapon" that offers active, passive, and a 4dB boost "On+" mode, with a 12-hour battery life. Sound performance is praised for detailed 50mm driver output, strong instrument separation, and excellent passive isolation, while the "On+" mode is highlighted...Read more

afr.com

27/08/2018

Blue Sadie: The ugliest headphones may leave you with a smile

In his review for The Australian Financial Review, Leigh Stark highlights the Blue Sadie as an unorthodox, oversized pair of headphones that prioritizes "unrestrained audiophilic awesomeness" over sleek, modern aesthetics. The primary pro of the Blue Sadie is its exceptional, immersive audio quality, which provides a massive, high-fidelity soundstage that easily outperforms small,...Read more

au.pcmag.com

28/01/2017

Blue Sadie - Review 2017 - PCMag Australia

The Blue Sadie headphones ($399.99) replace the original Mo-Fi model, keeping the same 50mm fiber-reinforced dynamic drivers but introducing a adjusted, clearer sound signature and a refined headband structure. Inspired by Formula One suspension, the massive, one-pound over-ear design provides a secure and comfortable fit, even though its bulky structure may feel like it is gripping...Read more

ilounge.com

14/05/2021

Review: Blue Sadie Headphones - iLounge

The Blue Sadie is a $400 premium over-ear headphone that updates the brand's unique design aesthetic by embedding a powerful, built-in analog amplifier directly into the chassis. On the positive side, the headphone offers a classy matte metallic gray finish with silver accents, a warm, clean sound profile with non-fatiguing treble, and an expertly restrained "On+" bass boost mode...Read more

uk.pcmag.com

27/01/2017

Blue Sadie Review - PCMag UK

The Blue Sadie over-ear headphones deliver a rich, clear audio experience driven by 50mm fiber-reinforced dynamic drivers and a built-in amplifier. Inspired by Formula One suspension, the massive, multi-jointed headband securely grips the skull with heavily cushioned pressure, ensuring long-term comfort despite a hefty weight of one pound. A key highlight is its three listening...Read more

headphonereview.com

25/02/2017

Blue Sadie Over-Ear Headphones Review

The Blue Sadie over-ear wired headphones ($399) offer an excellent mid-range audiophile option that sits between Blue's Ella and Lola models, utilizing the same unique Formula 1 race car-inspired metal frame design. A major standout feature is the built-in 1,000mAh battery-powered headphone amplifier, which can get incredibly loud and features three distinct listening modes: off...Read more

pcmag.com

27/01/2017

Blue Sadie Review - PCMag

The Blue Sadie headphones are praised by PCMag for their superb, clear audio performance driven by a built-in audiophile amplifier. Pros include an engaging, detailed sound profile with crisp highs and powerful bass, offering an immersive listening experience for high-resolution audio. However, the design is heavily criticized for its substantial weight, bulky form factor, and...Read more

wired.com

07/03/2018

Blue Sadie Headphones with Built-In Amp Review - WIRED

The Blue Sadie over-ear headphones deliver exceptional, balanced audio quality powered by 50mm dynamic drivers and an integrated 240 mW analog amplifier. Reviewers praise their customizable, snug fit that accommodates glasses comfortably, as well as their superb passive sound isolation and spacious soundstage. The standout feature is the unique analog amp, featuring "On" and "On+"...Read more

bonedo.de

09/10/2017

Blue Sadie Review

The Blue Sadie is a closed-back, over-ear headphone featuring a robust, rectangular aluminum headband design and dynamic 50mm drivers with a 42-ohm impedance>. Its standout feature is an integrated audiophile amplifier powered by a built-in rechargeable battery that delivers roughly 12 hours of continuous playback per 4-hour charge. Designed primarily for mobile listening, the...Read more

kopfhoerer.de

08/06/2018

Blue Sadie review on kopfhoerer.de

The Blue Sadie is a closed, over-ear mobile headphone uniquely featuring a built-in 240-mW analog amplifier designed to unlock high-fidelity sound from low-power mobile devices. It stands out with its exceptionally premium craftsmanship and an innovative, eye-catching multi-jointed headband architecture that conforms seamlessly to various head shapes. In passive mode, the headphones...Read more

lesnumeriques.com

09/05/2017

Blue Sadie: best price - Les Numériques

The review of the Blue Sadie circum-aural headphones by Les Numériques gives the product a middle-of-the-road rating of 3 out of 5 stars. On the positive side, the headphones are highly praised for delivering a smooth and warm sound profile characterized by excellent membrane responsiveness, high precision, and non-existent distortion. When used in passive mode, the bass is...Read more

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