Boult Audio Fluid X Review | 93 Data compared

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  • Avg. price in UK: ~£20
  • Avg. price in US: ~$20
  • Form factor: over-ear
  • Connectivity: wireless
  • Battery life: 60 hours
  • Active noise cancellation (ANC): no

Boult Audio Fluid X review. Compare 93 technical specifications and user reviews to see how it ranks among headphones and if it is worth buying.

6.4

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%

5.9

Technical Score

20.0%

8.6

User score

Good
5.9

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%

4.8

Sound

20.0%

6.7

Features

10.0%

7.5

Design

8.0%

6.1

Connectivity

6.0%

8.9

Battery

4.0%

7.4

Calls & Controls

Good
8.6

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%

8.0

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
3.9
(14356)
amazon
4.2
(8066)
amazon
3.4
(66)
United States
Amazon_logo.png
3.9
(14356)
Amazon_logo.png
4.2
(8066)
Amazon_logo.png
3.4
(66)

(Reviews last updated: June 2026)

Excellent
  • 9.7
    Gaming

    Score components:

    35.0%

    9.1

    Audio latency

    25.0%

    10

    Low-latency game mode

    20.0%

    10

    Can be used as a headset

    12.0%

    10

    Noise-canceling microphone

    8.0%

    10

    Battery life

  • 6.7
    Travel

    Score components:

    28.0%

    1.0

    Active noise cancellation (ANC)

    24.0%

    10

    Battery life

    18.0%

    5.5

    Weight

    16.0%

    10

    Multipoint support

    14.0%

    10

    Ambient sound mode

  • 10
    Calls

    Score components:

    28.0%

    10

    Noise-canceling microphone

    24.0%

    10

    Can be used as a headset

    18.0%

    10

    Multipoint support

    16.0%

    10

    Battery life

    14.0%

    10

    Companion app

  • 8.1
    Workout

    Score components:

    28.0%

    5.5

    Weight

    24.0%

    10

    Water resistance

    20.0%

    7.0

    IP rating

    16.0%

    10

    Battery life

    12.0%

    10

    Can be used as a headset

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Best prices in UK

Best rankings

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

Verdict

The Boult Audio Fluid X is an over-ear wireless headphone featuring 40mm bass-boosted drivers with BoomX technology, Bluetooth 5.4 connectivity, and a foldable, IPX5 water-resistant design. It offers up to 60 hours of total playtime with fast charging support that provides 3 hours of usage from a 10-minute top-up, alongside a dedicated Combat Gaming Mode with 60ms low latency and a Zen ENC microphone for clear calls. Main pros include its extensive battery life, stable multi-device pairing, and comfortable cushioned earcups for long sessions. However, some users have reported concerns regarding brittle plastic build quality, potential sound leakage at higher volumes, and a lack of true active noise cancellation compared to the Pro model.

Technical Specifications of Boult Audio Fluid X

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%

4.8

Sound

20.0%

6.7

Features

10.0%

7.5

Design

8.0%

6.1

Connectivity

6.0%

8.9

Battery

4.0%

7.4

Calls & Controls

5.9
Boult Audio Fluid X has a technical score of 5.88 points, which is higher than that of 71.2% 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%

8.0

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
3.9
(14356)
amazon
4.2
(8066)
amazon
3.4
(66)
United States
Amazon_logo.png
3.9
(14356)
Amazon_logo.png
4.2
(8066)
Amazon_logo.png
3.4
(66)

(Reviews last updated: June 2026)

8.6
Boult Audio Fluid X has a user score of 8.61 points, which is higher than that of 74.8% of products in this category.
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.
10
Boult Audio Fluid X has a popularity of 10 points, which is higher than 71.9% 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%

6.4

Overall score

40.0%

10

Price

7.5
Boult Audio Fluid X has a quality-to-price ratio of 7.5 points, which is higher than 74.3% 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
Boult Audio Fluid X 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

40 mm
Boult Audio Fluid X uses a driver size of 40 mm, larger driver size than 28.2% of headphones and equal to 53.6% of headphones.
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
Boult Audio Fluid X 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

20 Hz
Boult Audio Fluid X reaches a lowest frequency of 20 Hz, higher lowest frequency than 50.6% of headphones and equal to 47.5% of headphones.
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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

yes
Boult Audio Fluid X supports a noise-canceling microphone. 54.5% 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
Boult Audio Fluid X 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
Boult Audio Fluid X 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
Boult Audio Fluid X 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

wireless
Boult Audio Fluid X supports wireless connectivity, more flexible connectivity than 52.6% of headphones and equal to 47.4% of headphones.
supports both wireless and wired connectivity.
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

5.4
Boult Audio Fluid X uses Bluetooth version 5.4, newer Bluetooth version than 95.2% of headphones and equal to 4.2% of headphones.
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

10 m
Boult Audio Fluid X offers a Bluetooth range of 10 m, higher Bluetooth range than 2.6% of headphones and equal to 79.9% of headphones.
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

60 ms
Boult Audio Fluid X has audio latency of 60 ms, lower audio latency than 63.2% of headphones and equal to 6.4% of headphones.
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

yes
Boult Audio Fluid X supports multipoint. 35% of headphones support multipoint.
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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

yes
Boult Audio Fluid X supports ambient sound mode. 23.2% of headphones support ambient sound mode.
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

yes
Boult Audio Fluid X supports EQ customization. 76.8% 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

yes
Boult Audio Fluid X works with a companion app. 55.7% of headphones support companion apps.
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
Boult Audio Fluid X supports voice assistants. 39.2% of headphones support voice assistants.
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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

60 hours
Boult Audio Fluid X offers battery life of 60 hours, higher battery life than 79% of headphones and equal to 6.2% of headphones.
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

35 hours
Boult Audio Fluid X offers battery life with ANC of 35 hours, higher battery life with ANC than 54.6% of headphones and equal to 4.8% of headphones.
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

1.2 hours
Boult Audio Fluid X needs 1.2 hours to charge, lower charging time than 95.9% of headphones and equal to 0.2% of headphones.
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

yes
Boult Audio Fluid X supports quick charge. 31% of headphones support quick charge.
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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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

Boult
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

205 g
Boult Audio Fluid X weighs 205 g, lighter than 53.4% of headphones and equal to 0.5% 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

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Boult Audio Fluid X vs the average headphone

  • EQ customization
    Boult Audio Fluid X supports EQ customization, the average headphone does not. 23.3% of headphones support EQ.
    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

    Boult Audio Fluid X supports EQ customization, the average headphone does not. 23.3% of headphones support EQ.
  • 16 dB/mW higher sensitivity
    Boult Audio Fluid X has a higher sensitivity than the average headphone (118 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

    Boult Audio Fluid X has a higher sensitivity than the average headphone (118 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.118 dB/mW vs 102 dB/mW
  • More flexible connectivity
    Boult Audio Fluid X offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.
    supports both wireless and wired 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

    Boult Audio Fluid X offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.wireless vs wired
  • 30 hours longer battery life
    Boult Audio Fluid X has a higher battery life than the average headphone (60 hours vs 30 hours). The average headphones offer battery life of 30 hours.
    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

    Boult Audio Fluid X has a higher battery life than the average headphone (60 hours vs 30 hours). The average headphones offer battery life of 30 hours.60 hours vs 30 hours
  • Clear call microphone
    Boult Audio Fluid X offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
    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

    Boult Audio Fluid X offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
  • On-device controls
    Boult Audio Fluid X 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

    Boult Audio Fluid X includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
  • 0.8 hours shorter charging time
    Boult Audio Fluid X has a lower charging time than the average headphone (1.2 hours vs 2 hours). The average headphones need 2 hours to charge.
    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

    Boult Audio Fluid X has a lower charging time than the average headphone (1.2 hours vs 2 hours). The average headphones need 2 hours to charge.1.2 hours vs 2 hours
  • 67.5 ms lower audio latency
    Boult Audio Fluid X has a lower audio latency than the average headphone (60 ms vs 127.5 ms). The average headphones have audio latency of 127.5 ms.
    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

    Boult Audio Fluid X has a lower audio latency than the average headphone (60 ms vs 127.5 ms). The average headphones have audio latency of 127.5 ms.60 ms vs 127.5 ms
  • Foldable design
    Boult Audio Fluid X has a foldable design, the average headphone does not. 61% of headphones are foldable.
  • Water resistance
    Boult Audio Fluid X is water resistant, the average headphone is not. 20.2% of headphones are water resistant.
  • Better IP rating
    Boult Audio Fluid X has a better IP rating than the average headphone (IPX5 vs none). The average headphones have an IP rating of none.
  • 16 dB/mW higher sensitivity
    Boult Audio Fluid X has a higher sensitivity than the average headphone (118 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
  • 15 dB SPL higher sound pressure level
    Boult Audio Fluid X has a higher sound pressure level than the average headphone (118 dB SPL vs 103 dB SPL). The average headphones reach a sound pressure level of 103 dB SPL.
  • 30 hours longer battery life
    Boult Audio Fluid X has a higher battery life than the average headphone (60 hours vs 30 hours). The average headphones offer battery life of 30 hours.
  • 0.8 hours shorter charging time
    Boult Audio Fluid X has a lower charging time than the average headphone (1.2 hours vs 2 hours). The average headphones need 2 hours to charge.
  • USB-C charging
    Boult Audio Fluid X uses USB-C charging, the average headphone does not. 29.4% of headphones use USB Type-C.
  • Rechargeable battery
    Boult Audio Fluid X has a rechargeable battery, the average headphone does not. 47.9% of headphones have a rechargeable battery.
  • Play while charging
    Boult Audio Fluid X can play while charging, the average headphone cannot. 55.9% of headphones support play while charging.
  • 5 hours longer ANC battery life
    Boult Audio Fluid X has a higher battery life with ANC than the average headphone (35 hours vs 30 hours). The average headphones offer battery life with ANC of 30 hours.
  • More flexible connectivity
    Boult Audio Fluid X offers more flexible connectivity than the average headphone (wireless vs wired). The average headphones support wired connectivity.
  • 67.5 ms lower audio latency
    Boult Audio Fluid X has a lower audio latency than the average headphone (60 ms vs 127.5 ms). The average headphones have audio latency of 127.5 ms.
  • Clear call microphone
    Boult Audio Fluid X offers a clear call microphone, while the average headphone does not. 45.6% of headphones support noise-canceling microphones.
  • On-device controls
    Boult Audio Fluid X includes on-device controls, the average headphone does not. 46.8% of headphones support on-device controls.
  • Sidetone support
    Boult Audio Fluid X supports sidetone, the average headphone does not. 29.7% of headphones support sidetone.
  • EQ customization
    Boult Audio Fluid X supports EQ customization, the average headphone does not. 23.3% of headphones support EQ.
  • 8 years newer release date
    Boult Audio Fluid X was released more recently than the average headphone (2,025 vs 2,017). The average headphones were released in 2,017.
  • No travel bag
    Boult Audio Fluid X does not include a travel bag, the average headphone does. 65.2% of headphones include a travel bag.
  • 2 Hz weaker bass extension
    Boult Audio Fluid X has a higher lowest frequency than the average headphone (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
  • No neodymium magnet
    Boult Audio Fluid X does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.
  • 2 Hz weaker bass extension
    Boult Audio Fluid X has a higher lowest frequency than the average headphone (20 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

    Boult Audio Fluid X has a higher lowest frequency than the average headphone (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.20 Hz vs 18 Hz
  • No travel bag
    Boult Audio Fluid X does not include a travel bag, the average headphone does. 65.2% of headphones include a travel bag.
    What it is: Comes with a protective carrying case or pouch
    When it matters: When protection in transit matters right out of the box.

    Importance: LOW

    Boult Audio Fluid X does not include a travel bag, the average headphone does. 65.2% of headphones include a travel bag.
  • No neodymium magnet
    Boult Audio Fluid X does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.
    What it is: Uses neodymium magnets for stronger, clearer sound
    When it matters: When driver construction details are part of how you compare sound hardware.

    Importance: LOW

    Boult Audio Fluid X does not use neodymium magnets, the average headphone does. 77.4% of headphones use neodymium magnets.

Graphic comparison of Boult Audio Fluid X and

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Third-party reviews

(Reviews last updated: June 2026)

What customers like about Boult Audio Fluid X?

  • Impressive 60-hour battery life with fast charging support
  • Comfortable over-ear design with soft cushioning and a padded headband
  • Balanced sound quality featuring punchy bass and clear vocals for its price range
  • Fast and stable Bluetooth 5.4 connectivity with quick pairing
  • Sleek and modern aesthetic that many users find premium-looking
  • Foldable design makes it highly portable for travel
  • Good call clarity thanks to the Zen Environmental Noise Cancellation (ENC) mic

What customers dislike about Boult Audio Fluid X?

  • Mixed feedback on build quality, with reports of flimsy plastic and hinge fragility
  • Ears can feel warm or sweaty after extended listening sessions
  • Noticeable sound leakage at volumes above 70-80%
  • Not ideal for competitive gaming due to typical Bluetooth latency
  • Variable fit; may feel too loose for some users or have high clamping force for larger heads
  • Inconsistent bass performance reported by some users who found it lacking depth
  • Poor customer service experiences regarding returns or physical damage repairs

Video reviews

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