Bose SoundLink Flex Review | 130 Data compared

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  • Avg. price in UK: ~£110
  • Avg. price in US: ~$150
  • Audio output power: ?
  • Battery life: 12 hours
  • IP rating: IP67
  • Bluetooth version: 4.2
  • Weight: 589 g

Bose SoundLink Flex review. Compare 130 technical specifications and user reviews to see how this product ranks in the Portable Speakers category and whether it is worth buying.

7.2

Overall score

What it is: An overall evaluation of products in the Portable Speakers category, based on technical analysis and user reviews.

When it matters: When you need a quick reference for identifying the best products in the Portable Speakers category.

Score components:

80.0%

6.6

Technical Score

20.0%

9.6

User score

Very good
6.6

Technical Score

What it is: An assessment of technical performance for products in the Portable Speakers category across these key areas: Audio, Connectivity, Battery, Durability, Controls, Design, Smart features.

When it matters: When you want to compare products in the Portable Speakers category by technical performance, specifications, and available features.

Score components:

32.0%

5.9

Audio

20.0%

5.4

Battery

18.0%

9.8

Durability

16.0%

5.4

Connectivity

8.0%

6.4

Controls

3.0%

8.8

Design

3.0%

7.5

Smart features

Good
9.6

User score

What it is: A rating that combines user reviews with the total review volume for products in the Portable Speakers category.

When it matters: When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.

Score components:

70.0%

9.4

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.8
(39027)
amazon
4.7
(4057)
amazon
4.7
(148)
United States
Amazon_logo.png
4.7
(39852)
Amazon_logo.png
4.8
(4120)
Amazon_logo.png
4.6
(149)

(Reviews last updated: August 2026)

Exceptional
  • 9.1
    Outdoor durability

    Score components:

    40.0%

    10

    Water resistance

    25.0%

    9.7

    IP rating

    20.0%

    9.6

    Weight

    15.0%

    5.2

    Battery life

  • 7.8
    Powerful sound

    Score components:

    45.0%

    ?

    Audio output power

    25.0%

    5.2

    Battery life

    15.0%

    9.6

    Weight

    15.0%

    10

    Party mode

  • 7.0
    Home listening

    Score components:

    35.0%

    ?

    Multi-room support

    30.0%

    4.0

    Wi-Fi connectivity

    20.0%

    ?

    Audio output power

    15.0%

    9.6

    Weight

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Best prices in UK

Best rankings

?

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

Verdict

The Bose SoundLink Flex is a highly durable, portable Bluetooth speaker measuring 7.9 x 3.6 x 2.1 inches and weighing 1.3 pounds. Key technical specifications include an IP67 waterproof and dustproof certification, up to 12 hours of battery life via USB-C charging, a built-in microphone for speakerphone and voice assistant access, and proprietary PositionIQ technology that automatically optimizes audio reproduction based on its orientation. Major advantages feature a rugged silicone-wrapped chassis with a powder-coated steel grille that resists UV rays and rust, a design that actively floats if dropped in water, multipoint pairing with up to two devices, and remarkably clear mid-range performance for detailed dialogue and vocals. However, notable drawbacks include audio compression artifacting at maximum volume levels, a lack of sub-bass punch for lower frequencies, and the absence of a built-in customizable graphic EQ within the standard companion app.

Technical Specifications of portable speaker Bose SoundLink Flex

Technical Score

What it is: An assessment of technical performance for products in the Portable Speakers category across these key areas: Audio, Connectivity, Battery, Durability, Controls, Design, Smart features.

When it matters: When you want to compare products in the Portable Speakers category by technical performance, specifications, and available features.

Score components:

32.0%

5.9

Audio

20.0%

5.4

Battery

18.0%

9.8

Durability

16.0%

5.4

Connectivity

8.0%

6.4

Controls

3.0%

8.8

Design

3.0%

7.5

Smart features

6.6
Bose SoundLink Flex has a technical score of 6.59 points, which is lower than 62.8% of products in this category.
User score

What it is: A rating that combines user reviews with the total review volume for products in the Portable Speakers category.

When it matters: When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.

Score components:

70.0%

9.4

User reviews

30.0%

10

Popularity

User score:
United Kingdom
amazon
4.8
(39027)
amazon
4.7
(4057)
amazon
4.7
(148)
United States
Amazon_logo.png
4.7
(39852)
Amazon_logo.png
4.8
(4120)
Amazon_logo.png
4.6
(149)

(Reviews last updated: August 2026)

9.6
Bose SoundLink Flex has a user score of 9.59 points, which is higher than 98.5% of products in this category.
Popularity
What it is: An indicator based on the number of reviews received by products in the Portable Speakers category.
When it matters: When you prefer products in the Portable Speakers category that have been chosen and reviewed by many other buyers.
10
Bose SoundLink Flex has a popularity of 10 points, which is higher than 66.6% of products in this category.
Ratio quality/price

What it is: An indicator that combines the overall score of products in the Portable Speakers category with their prices.

When it matters: When you are comparing products in the Portable Speakers category and want a good balance between quality and price.

Score components:

60.0%

7.2

Overall score

40.0%

9.9

Price

8.0
Bose SoundLink Flex has a quality-to-price ratio of 8 points, which is higher than 68.5% of products in this category.
Audio output power
What it is: The maximum continuous power the speaker system can deliver.
When it matters: When you need enough output to fill a larger or noisier space.

Importance: HIGH

Good value: >= 20 W

?
Driver unit size
What it is: The diameter of each main speaker driver.
When it matters: When the size of the main driver influences bass reach and output capability.

Importance: HIGH

Good value: >= 50 mm

60.00 mm
Bose SoundLink Flex has a driver unit size of 60.00 mm which is larger than that of 67.8% of portable speakers and equal to that of 0.3% of portable speakers.
Primary driver diameter: 60.00 mm.
Number of drivers
What it is: The total number of speaker drivers built into the unit.
When it matters: When fuller driver arrays and broader sound coverage matter.

Importance: MEDIUM

Good value: >= 2

1
Bose SoundLink Flex has 1 drivers, which is fewer than 75.6% of portable speakers and equal to the number in 24.4% of portable speakers.
Acoustic drivers: 1.
Frequency response tolerance
What it is: The allowed deviation around the stated frequency response curve.
When it matters: When a flatter and more accurate frequency response matters.

Importance: MEDIUM

Good value: <= 3 dB

?
Lowest frequency
What it is: The lowest audible frequency the speaker can reproduce.
When it matters: When deeper bass extension matters.

Importance: HIGH

Good value: <= 60 Hz

60.00 Hz
Bose SoundLink Flex has a lowest frequency of 60.00 Hz which is lower than that of 43.8% of portable speakers and equal to that of 9.2% of portable speakers.
Lower frequency-response endpoint: 60.00 Hz.
Show more
Bluetooth connectivity
What it is: Indicates whether the speaker can receive audio over Bluetooth.
When it matters: When wireless playback from phones, tablets, or computers matters.

Importance: MEDIUM

Good value: yes

yes
Bose SoundLink Flex supports Bluetooth audio. 5.4% of portable speakers offer this feature.
Bluetooth version
What it is: The generation of Bluetooth supported by the speaker hardware.
When it matters: When compatibility and efficiency with newer Bluetooth devices matter.

Importance: LOW

Good value: >= 5.0

4.2
Bose SoundLink Flex supports Bluetooth version 4.2 which is older than that of 53.8% of portable speakers and equal to that of 17.8% of portable speakers.
Bluetooth version: 4.2.
Maximum Bluetooth range
What it is: The farthest distance at which the Bluetooth link can remain usable.
When it matters: When the source device may be far from the speaker.

Importance: MEDIUM

Good value: >= 10 m

9.00 m
Bose SoundLink Flex has a maximum Bluetooth range of 9.00 m which is shorter than that of 95.8% of portable speakers and equal to that of 3.5% of portable speakers.
Maximum Bluetooth range: 9.00 m.
Bluetooth profiles supported
What it is: The Bluetooth operating profiles available for playback, control, or calls.
When it matters: When Bluetooth playback, control, and call compatibility depend on specific profiles.

Importance: LOW

A2DP; AVRCP; HFP; HSP
Bluetooth LE Audio
What it is: Shows whether the speaker supports the low-energy Bluetooth audio standard.
When it matters: When newer low-power Bluetooth audio features matter.

Importance: LOW

Good value: yes

no
Bose SoundLink Flex does not support Bluetooth LE Audio. 2.5% of portable speakers offer this feature.
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Battery life
What it is: The playback time available from one full battery charge.
When it matters: When you need longer playback between charges.

Importance: HIGH

Good value: >= 20 h

12 hours
Bose SoundLink Flex has a battery life of 12 hours which is longer than that of 47.8% of portable speakers and equal to that of 15.7% of portable speakers.
Battery capacity
What it is: The amount of electrical charge the internal battery can store.
When it matters: When longer untethered playback or power-bank use needs more stored charge.

Importance: HIGH

Good value: >= 5000 mAh

2,600 mAh
Bose SoundLink Flex has a battery capacity of 2,600 mAh which is larger than that of 49% of portable speakers and equal to that of 7.4% of portable speakers.
Charging time
What it is: The time needed to recharge the battery fully.
When it matters: When the speaker needs to be ready again quickly.

Importance: MEDIUM

Good value: <= 4 h

4 hours
Bose SoundLink Flex has a charging time of 4 hours which is longer than that of 67% of portable speakers and equal to that of 19.3% of portable speakers.
Maximum charging input power
What it is: The maximum charging power the speaker can accept from a compatible power source.
When it matters: When faster charging requires the speaker to accept more input power.

Importance: LOW

Good value: >= 20 W

5 W
Bose SoundLink Flex has a maximum charging input power of 5 W which is lower than that of 58.7% of portable speakers and equal to that of 38.5% of portable speakers.
Built-in rechargeable battery
What it is: Indicates whether the speaker uses a battery that can be recharged.
When it matters: When portable use without disposable batteries or continuous mains power matters.

Importance: LOW

Good value: yes

yes
Bose SoundLink Flex has a built-in rechargeable battery. 18.7% of portable speakers offer this feature.
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IP rating
What it is: The ingress protection code for dust and water resistance.
When it matters: When dust and water protection need to match the intended environment.

Importance: HIGH

Good value: IP67+

IP67
Bose SoundLink Flex has an IP rating of IP67 which provides better ingress protection than 80% of portable speakers and the same ingress protection as 19.1% of portable speakers.
Water resistance
What it is: Indicates whether the enclosure can resist water exposure.
When it matters: When the speaker may be used near pools, rain, or splashes.

Importance: MEDIUM

Good value: yes

yes
Bose SoundLink Flex is water resistant. 38.3% of portable speakers offer this feature.
Dust resistance
What it is: Shows whether the enclosure is protected against dust ingress.
When it matters: When the speaker may be exposed to sand, soil, or dusty environments.

Importance: MEDIUM

Good value: yes

yes
Bose SoundLink Flex is dust resistant. 48.6% of portable speakers offer this feature.
Waterproof depth rating
What it is: The maximum water depth the speaker is rated to withstand.
When it matters: When the speaker may be submerged or used very close to water.

Importance: MEDIUM

Good value: >= 1 m

1 m
Bose SoundLink Flex has a waterproof depth rating of 1 m which is deeper than that of 52.6% of portable speakers and equal to that of 47.4% of portable speakers.
Drop resistance
What it is: Indicates whether the housing is designed to survive accidental drops.
When it matters: When the speaker may be bumped or suffer an accidental fall during outdoor or travel use.

Importance: LOW

Good value: yes

yes
Bose SoundLink Flex resists accidental impacts. 67.3% of portable speakers offer this feature.
Show more
On-device controls placement
What it is: The physical area of the speaker where its controls are located.
When it matters: When you want controls that are easy to reach in the speaker intended placement.

Importance: LOW

top
Touchscreen
What it is: Indicates whether a touch-sensitive screen is integrated.
When it matters: When direct visual control is more convenient than buttons or an app.

Importance: LOW

Good value: yes

no
Bose SoundLink Flex does not have a touchscreen. 0.3% of portable speakers offer this feature.
The speaker does not have an integrated touchscreen.
Smartphone app control
What it is: Shows whether the speaker can be controlled from a phone app.
When it matters: When remote settings, updates, or sound adjustment from a phone matter.

Importance: LOW

Good value: yes

yes
Bose SoundLink Flex supports smartphone app control. 46.1% of portable speakers offer this feature.
Compatible mobile app provides speaker control or settings.
Remote control
What it is: Indicates whether a dedicated remote control is supplied or supported.
When it matters: When you want to control playback from across the room.

Importance: LOW

Good value: yes

no
Bose SoundLink Flex does not include a remote control. 15% of portable speakers offer this feature.
No dedicated remote control is documented.
Fast pairing
What it is: Shows whether setup with compatible devices can be completed more quickly.
When it matters: When quick setup with compatible devices matters.

Importance: LOW

Good value: yes

no
Bose SoundLink Flex does not support fast pairing. 22.5% of portable speakers offer this feature.
No qualifying fast-pair capability; initial pairing is manual or standard.
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Weight
What it is: The total mass of the portable speaker.
When it matters: When carrying the speaker frequently or packing light matters.

Importance: LOW

Good value: <= 1000 g

589 g
Bose SoundLink Flex weighs 589 g which is lighter than that of 59.9% of portable speakers and equal to that of 0.1% of portable speakers.
Height
What it is: The vertical external dimension of the speaker body.
When it matters: When the speaker must fit beneath shelves or in a compact bag.

Importance: LOW

Good value: <= 20 cm

9 cm
Bose SoundLink Flex has a height of 9 cm which is shorter than that of 67.1% of portable speakers and equal to that of 1% of portable speakers.
Width
What it is: The side-to-side external dimension of the speaker body.
When it matters: When the speaker must fit a narrow shelf, bag, or tabletop.

Importance: LOW

Good value: <= 25 cm

20.14 cm
Bose SoundLink Flex has a width of 20.14 cm which is wider than that of 57.7% of portable speakers and equal to that of 0.1% of portable speakers.
Depth
What it is: The front-to-back depth of the speaker housing.
When it matters: When the speaker should take up less front-to-back space.

Importance: LOW

Good value: <= 10 cm

5.23 cm
Bose SoundLink Flex has a depth of 5.23 cm which is shallower than that of 80.7% of portable speakers and equal to that of 0.1% of portable speakers.
Carry options
What it is: The available ways to carry, hang, or attach the speaker.
When it matters: When a handle, strap, or attachment point changes how you carry the speaker.

Importance: LOW

strap
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Companion app name
What it is: The official app used to control settings and functions of the speaker.
When it matters: When app compatibility and the available control features depend on the official app.

Importance: LOW

Bose Connect
Firmware updates
What it is: Indicates whether the speaker can receive firmware revisions after purchase.
When it matters: When post-purchase fixes and feature improvements matter.

Importance: LOW

Good value: yes

yes
Bose SoundLink Flex supports firmware updates. 52.9% of portable speakers offer this feature.
Supports user-accessible firmware updates.
Firmware update method
What it is: The path used to install firmware updates on the speaker.
When it matters: When the convenience and reliability of installing updates matters.

Importance: LOW

?
Voice assistant support
What it is: Indicates whether the speaker can work with supported voice assistants.
When it matters: When hands-free control through a compatible assistant matters.

Importance: LOW

Good value: yes

yes
Bose SoundLink Flex supports voice assistants. 73.6% of portable speakers offer this feature.
Supports direct voice-assistant control.
Spotify Connect
What it is: Shows whether Spotify can stream directly to the speaker over the network.
When it matters: When Spotify should stream directly without keeping phone audio active.

Importance: LOW

Good value: yes

no
Bose SoundLink Flex does not support Spotify Connect. 10.8% of portable speakers offer this feature.
Does not support native Spotify Connect.
Show more

Bose SoundLink Flex vs the average portable speaker

  • Better ingress protection
    Bose SoundLink Flex has better ingress protection than the average portable speaker (IP67 vs IPX5).
    What it is: The ingress protection code for dust and water resistance.
    When it matters: When dust and water protection need to match the intended environment.

    Importance: HIGH

    Good value: IP67+

    Bose SoundLink Flex has better ingress protection than the average portable speaker (IP67 vs IPX5).IP67 vs IPX5
  • 1 m deeper waterproof rating
    Bose SoundLink Flex has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
    What it is: The maximum water depth the speaker is rated to withstand.
    When it matters: When the speaker may be submerged or used very close to water.

    Importance: MEDIUM

    Good value: >= 1 m

    Bose SoundLink Flex has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).1 m vs 0 m
  • 1 more multipoint connections
    Bose SoundLink Flex has more multipoint connections than the average portable speaker (2 vs 1).
    Simultaneous Bluetooth devices: 2.
    What it is: The number of source devices that can stay connected at the same time.
    When it matters: When switching between several connected source devices matters.

    Importance: MEDIUM

    Good value: >= 2

    Bose SoundLink Flex has more multipoint connections than the average portable speaker (2 vs 1).2 vs 1
  • Resists accidental impacts
    Bose SoundLink Flex resists accidental impacts, while the average portable speaker lacks an impact-resistance rating.
    What it is: Indicates whether the housing is designed to survive accidental drops.
    When it matters: When the speaker may be bumped or suffer an accidental fall during outdoor or travel use.

    Importance: LOW

    Good value: yes

    Bose SoundLink Flex resists accidental impacts, while the average portable speaker lacks an impact-resistance rating.
  • Floats in water
    Bose SoundLink Flex floats in water, while the average portable speaker does not float in water.
    What it is: Indicates whether the speaker can float if dropped into water.
    When it matters: When the speaker may be used around pools, boats, or open water.

    Importance: LOW

    Good value: yes

    Bose SoundLink Flex floats in water, while the average portable speaker does not float in water.
  • Supports party mode
    Bose SoundLink Flex supports party mode, while the average portable speaker does not support party mode.
    Supports synchronized multi-speaker party/group playback.
    What it is: Indicates whether multiple speakers can play the same audio together.
    When it matters: When several compatible speakers should play together.

    Importance: LOW

    Good value: yes

    Bose SoundLink Flex supports party mode, while the average portable speaker does not support party mode.
  • Has a USB Type-C port
    Bose SoundLink Flex has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
    Has a physical USB-C port.
    What it is: Indicates whether the device uses a USB Type-C connector.
    When it matters: When modern charging and connection compatibility matter.

    Importance: LOW

    Good value: yes

    Bose SoundLink Flex has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
  • 10 mm larger main driver
    Bose SoundLink Flex has a larger main driver than the average portable speaker (60 mm vs 50.00 mm).
    Primary driver diameter: 60.00 mm.
    What it is: The diameter of each main speaker driver.
    When it matters: When the size of the main driver influences bass reach and output capability.

    Importance: HIGH

    Good value: >= 50 mm

    Bose SoundLink Flex has a larger main driver than the average portable speaker (60 mm vs 50.00 mm).60.00 mm vs 50.00 mm
  • 10 mm larger main driver
    Bose SoundLink Flex has a larger main driver than the average portable speaker (60 mm vs 50.00 mm).
  • 1 dB higher signal-to-noise ratio
    Bose SoundLink Flex has a higher signal-to-noise ratio than the average portable speaker (81 dB vs 80 dB).
  • 1 more multipoint connections
    Bose SoundLink Flex has more multipoint connections than the average portable speaker (2 vs 1).
  • Has a USB Type-C port
    Bose SoundLink Flex has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
  • Better ingress protection
    Bose SoundLink Flex has better ingress protection than the average portable speaker (IP67 vs IPX5).
  • 1 m deeper waterproof rating
    Bose SoundLink Flex has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
  • Resists accidental impacts
    Bose SoundLink Flex resists accidental impacts, while the average portable speaker lacks an impact-resistance rating.
  • Floats in water
    Bose SoundLink Flex floats in water, while the average portable speaker does not float in water.
  • Is UV resistant
    Bose SoundLink Flex is UV resistant, while the average portable speaker is not rated as UV resistant.
  • Supports party mode
    Bose SoundLink Flex supports party mode, while the average portable speaker does not support party mode.
  • Supports playback mute
    Bose SoundLink Flex supports playback mute, while the average portable speaker does not support playback mute.
  • Has a sleep timer
    Bose SoundLink Flex has a sleep timer, while the average portable speaker does not have a sleep timer.
  • 3.07 cm shallower
    Bose SoundLink Flex is shallower than the average portable speaker (5.2 cm vs 8.3 cm).
  • Supports voice assistants
    Bose SoundLink Flex supports voice assistants, while the average portable speaker does not support voice assistants.
  • Supports firmware updates
    Bose SoundLink Flex supports firmware updates, while the average portable speaker does not support firmware updates.
  • 4,400 Hz lower maximum frequency
    Bose SoundLink Flex has a lower maximum frequency than the average portable speaker (15,600 Hz vs 20,000 Hz).
    Upper frequency-response endpoint: 15600 Hz.
  • 151 ms higher audio latency
    Bose SoundLink Flex has higher audio latency than the average portable speaker (236 ms vs 85 ms).
    Audio latency: 236 ms.
  • 5 dB SPL lower maximum sound pressure
    Bose SoundLink Flex has a lower maximum sound pressure level than the average portable speaker (87 dB SPL vs 92.00 dB SPL).
    Sound pressure level: 87.00 dB.
  • 1 fewer speaker drivers
    Bose SoundLink Flex has fewer speaker drivers than the average portable speaker (1 vs 2).
    Acoustic drivers: 1.
  • Does not have a 3.5 mm AUX input
    Bose SoundLink Flex does not have a 3.5 mm AUX input, while the average portable speaker has a 3.5 mm AUX input.
    No built-in 3.5 mm AUX input.
  • 1 fewer USB ports
    Bose SoundLink Flex has fewer USB ports than the average portable speaker (0 vs 1).
    Physical USB ports: 0.
  • 0.8 Bluetooth levels older
    Bose SoundLink Flex has an older Bluetooth version than the average portable speaker (4.2 vs 5.0).
    Bluetooth version: 4.2.
  • 1 m shorter Bluetooth range
    Bose SoundLink Flex has a shorter Bluetooth range than the average portable speaker (9 m vs 10 m).
    Maximum Bluetooth range: 9.00 m.
  • 1 hours longer charging time
    Bose SoundLink Flex has a longer charging time than the average portable speaker (4 hours vs 3 hours).
  • 5 W lower charging input power
    Bose SoundLink Flex has lower charging input power than the average portable speaker (5 W vs 10 W).
  • 4,400 Hz lower maximum frequency
    Bose SoundLink Flex has a lower maximum frequency than the average portable speaker (15,600 Hz vs 20,000 Hz).
    Upper frequency-response endpoint: 15600 Hz.
    What it is: The highest audible frequency the speaker can reproduce.
    When it matters: When upper-treble extension and high-frequency detail matter.

    Importance: MEDIUM

    Good value: >= 20000 Hz

    Bose SoundLink Flex has a lower maximum frequency than the average portable speaker (15,600 Hz vs 20,000 Hz).15600 Hz vs 20000 Hz
  • 151 ms higher audio latency
    Bose SoundLink Flex has higher audio latency than the average portable speaker (236 ms vs 85 ms).
    Audio latency: 236 ms.
    What it is: The delay between the source signal and the sound you hear.
    When it matters: When lip sync, gaming, or real-time monitoring matters.

    Importance: LOW

    Good value: <= 100 ms

    Bose SoundLink Flex has higher audio latency than the average portable speaker (236 ms vs 85 ms).236 ms vs 85 ms
  • 1 hours longer charging time
    Bose SoundLink Flex has a longer charging time than the average portable speaker (4 hours vs 3 hours).
    What it is: The time needed to recharge the battery fully.
    When it matters: When the speaker needs to be ready again quickly.

    Importance: MEDIUM

    Good value: <= 4 h

    Bose SoundLink Flex has a longer charging time than the average portable speaker (4 hours vs 3 hours).4 hours vs 3 hours
  • 5 dB SPL lower maximum sound pressure
    Bose SoundLink Flex has a lower maximum sound pressure level than the average portable speaker (87 dB SPL vs 92.00 dB SPL).
    Sound pressure level: 87.00 dB.
    What it is: The maximum acoustic loudness the speaker can produce.
    When it matters: When the speaker must play loudly in a large or outdoor space.

    Importance: HIGH

    Good value: >= 90 dB SPL

    Bose SoundLink Flex has a lower maximum sound pressure level than the average portable speaker (87 dB SPL vs 92.00 dB SPL).87.00 dB SPL vs 92.00 dB SPL
  • Does not have a 3.5 mm AUX input
    Bose SoundLink Flex does not have a 3.5 mm AUX input, while the average portable speaker has a 3.5 mm AUX input.
    No built-in 3.5 mm AUX input.
    What it is: Indicates whether a standard 3.5 mm analog audio socket is present.
    When it matters: When you need a reliable wired analog audio connection.

    Importance: LOW

    Good value: yes

    Bose SoundLink Flex does not have a 3.5 mm AUX input, while the average portable speaker has a 3.5 mm AUX input.
  • 5 W lower charging input power
    Bose SoundLink Flex has lower charging input power than the average portable speaker (5 W vs 10 W).
    What it is: The maximum charging power the speaker can accept from a compatible power source.
    When it matters: When faster charging requires the speaker to accept more input power.

    Importance: LOW

    Good value: >= 20 W

    Bose SoundLink Flex has lower charging input power than the average portable speaker (5 W vs 10 W).5 W vs 10 W
  • 1 fewer speaker drivers
    Bose SoundLink Flex has fewer speaker drivers than the average portable speaker (1 vs 2).
    Acoustic drivers: 1.
    What it is: The total number of speaker drivers built into the unit.
    When it matters: When fuller driver arrays and broader sound coverage matter.

    Importance: MEDIUM

    Good value: >= 2

    Bose SoundLink Flex has fewer speaker drivers than the average portable speaker (1 vs 2).1 vs 2
  • 1 fewer USB ports
    Bose SoundLink Flex has fewer USB ports than the average portable speaker (0 vs 1).
    Physical USB ports: 0.
    What it is: The number of USB ports available on the speaker.
    When it matters: When several wired accessories or storage devices need USB connections.

    Importance: LOW

    Good value: >= 1

    Bose SoundLink Flex has fewer USB ports than the average portable speaker (0 vs 1).0 vs 1

Graphic comparison of Bose SoundLink Flex and other products in the Portable Speakers category

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Third-party reviews

(Reviews last updated: August 2026)

What customers like about Bose SoundLink Flex?

  • Impressive bass and crisp, clear audio quality for its compact size
  • Excellent durability with an IP67 waterproof and dustproof rating
  • Highly portable, lightweight, and features a convenient built-in utility loop
  • PositionIQ technology automatically optimizes sound based on orientation
  • Premium build quality with a rugged silicone exterior and steel grille
  • Supports multi-device pairing to connect two devices simultaneously

What customers dislike about Bose SoundLink Flex?

  • Audio tends to distort, get muddled, or sound compressed at maximum volume
  • Real-world battery life often falls short of the advertised 12 hours when played loudly
  • Physical buttons can be stiff and difficult to distinguish or press
  • Lacks an auxiliary (3.5mm) input port for wired audio connections
  • First-generation model lacks built-in equalizer adjustments in the companion app
  • Sound profile is highly dependent on placement and environmental surfaces

Expert reviews

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techradar.com
24/01/2022
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musictech.com
16/05/2022
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whathifi.com
02/09/2022
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expertreviews.co.uk
08/01/2024
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rtings.com
24/10/2024
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t3.com
12/01/2022
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pocket-lint.com
19/05/2026
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cnet.com
04/12/2021
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pcmag.com
26/10/2021
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hifi.de
06/01/2022
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stereoguide.de
28/09/2022
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inside-digital.de
09/12/2023
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nextpit.de
02/03/2024
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heise.de
17/10/2024
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computerbild.de
12/02/2022
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t-online.de
23/06/2023
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lesnumeriques.com
03/02/2022
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clubic.com
02/03/2026
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frandroid.com
14/04/2022
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01net.com
21/02/2022
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leclaireur.fnac.com
14/06/2022
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computerhoy.20minutos.es
21/01/2022
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palabraderunner.com
10/02/2022
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culturasonora.es
18/05/2026
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es.digitaltrends.com
23/03/2022
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techprincess.it
13/02/2025
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smartworld.it
29/01/2025
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galaxus.it
06/03/2025
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global.techradar.com
26/01/2022
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C
consumentenbond.nl
Maart 2022
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C
consumentenbond.nl
Oktober 2024
Summary of the review

Video reviews

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