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Ultimate Ears WONDERBOOM 4 Review | 130 Data compared

Avg. price in UK: ~£90
Avg. price in US: ~$100
Audio output power: 10.00 W
Battery life: 14 hours
IP rating: IP67
Bluetooth version: 5.3
Weight: 420 g

Ultimate Ears WONDERBOOM 4 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.

7.5

Very good

7.1

Very good

9.2

Exceptional

9.3
Outdoor durability
Score components:
40.0%
10
Water resistance
25.0%
9.7
IP rating
20.0%
9.8
Weight
15.0%
6.4
Battery life
5.4
Powerful sound
Score components:
45.0%
1.9
Audio output power
25.0%
6.4
Battery life
15.0%
9.8
Weight
15.0%
10
Party mode
4.4
Home listening
Score components:
35.0%
4.0
Multi-room support
30.0%
4.0
Wi-Fi connectivity
20.0%
1.9
Audio output power
15.0%
9.8
Weight

Best prices in UK

Best rankings

#38 in Best small portable speakers
#174 in Best waterproof portable speakers
#213 in Best portable speakers
#613 in Best portable speakers for home

Verdict

The Ultimate Ears WONDERBOOM 4 is an ultra-portable Bluetooth speaker featuring a rugged, 0.9-pound drop-proof design with an IP67 rating that allows it to float and withstand complete water submersion up to 1 meter for 30 minutes. It delivers 10 watts of power with balanced 360-degree sound projection, features updated USB-C charging, and provides up to 14 hours of continuous battery life alongside useful hardware presets like Outdoor Boost and a vocal-centric Podcast mode. Key advantages include its extensive 131-foot wireless range, dual-speaker stereo pairing capabilities, and highly durable, eco-friendly build using recycled plastics. However, it lacks a companion app for custom EQ tuning, omits a built-in microphone for voice assistants or hands-free calling, and suffers from bass distortion and audio compression at its maximum volume limits.

Technical Specifications of portable speaker Ultimate Ears WONDERBOOM 4

Overall score

7.5

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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.

Audio

5.8

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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

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

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

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Connectivity

6.8

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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

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

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

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

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

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Battery

6.6

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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

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

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

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

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

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Durability

9.5

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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+

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

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

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

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

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Controls

8.1

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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; front

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

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

?

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

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

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Design

9.1

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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

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

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

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

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/handle

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Smart features

5.3

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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

?

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

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

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

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Ultimate Ears WONDERBOOM 4 vs the average portable speaker

Why is Ultimate Ears WONDERBOOM 4 better than the average portable speaker?

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Better ingress protection
Ultimate Ears WONDERBOOM 4 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+
Ultimate Ears WONDERBOOM 4 has better ingress protection than the average portable speaker (IP67 vs IPX5).IP67 vs IPX5
30 m longer Bluetooth range
Ultimate Ears WONDERBOOM 4 has a longer Bluetooth range than the average portable speaker (40 m vs 10 m).
Maximum Bluetooth range: 40.00 m.
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
Ultimate Ears WONDERBOOM 4 has a longer Bluetooth range than the average portable speaker (40 m vs 10 m).40.00 m vs 10 m
1 m deeper waterproof rating
Ultimate Ears WONDERBOOM 4 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
Ultimate Ears WONDERBOOM 4 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).1 m vs 0 m
Provides 360-degree sound
Ultimate Ears WONDERBOOM 4 provides 360-degree sound, while the average portable speaker does not provide 360-degree sound.
Provides omnidirectional 360° sound radiation.
What it is: Indicates whether sound is spread evenly in all directions.
When it matters: When even sound coverage around the speaker matters.
Importance: MEDIUM
Good value: yes
Ultimate Ears WONDERBOOM 4 provides 360-degree sound, while the average portable speaker does not provide 360-degree sound.
1 more multipoint connections
Ultimate Ears WONDERBOOM 4 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
Ultimate Ears WONDERBOOM 4 has more multipoint connections than the average portable speaker (2 vs 1).2 vs 1
1 hours shorter charging time
Ultimate Ears WONDERBOOM 4 has a shorter charging time than the average portable speaker (2 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
Ultimate Ears WONDERBOOM 4 has a shorter charging time than the average portable speaker (2 hours vs 3 hours).2 hours vs 3 hours
Has an equalizer
Ultimate Ears WONDERBOOM 4 has an equalizer, while the average portable speaker does not have an equalizer.
Offers user-selectable EQ, tone adjustment, or sound presets.
What it is: Shows whether the sound balance can be adjusted across frequency ranges.
When it matters: When you want to adjust bass, midrange, or treble balance.
Importance: LOW
Good value: yes
Ultimate Ears WONDERBOOM 4 has an equalizer, while the average portable speaker does not have an equalizer.
Resists accidental impacts
Ultimate Ears WONDERBOOM 4 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
Ultimate Ears WONDERBOOM 4 resists accidental impacts, while the average portable speaker lacks an impact-resistance rating.
Provides 360-degree sound
Ultimate Ears WONDERBOOM 4 provides 360-degree sound, while the average portable speaker does not provide 360-degree sound.
6 dB higher signal-to-noise ratio
Ultimate Ears WONDERBOOM 4 has a higher signal-to-noise ratio than the average portable speaker (86 dB vs 80 dB).
30 m longer Bluetooth range
Ultimate Ears WONDERBOOM 4 has a longer Bluetooth range than the average portable speaker (40 m vs 10 m).
1 more multipoint connections
Ultimate Ears WONDERBOOM 4 has more multipoint connections than the average portable speaker (2 vs 1).
Has a USB Type-C port
Ultimate Ears WONDERBOOM 4 has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
0.3 Bluetooth levels newer
Ultimate Ears WONDERBOOM 4 has a newer Bluetooth version than the average portable speaker (5.3 vs 5.0).
1 hours shorter charging time
Ultimate Ears WONDERBOOM 4 has a shorter charging time than the average portable speaker (2 hours vs 3 hours).
2 hours longer battery life
Ultimate Ears WONDERBOOM 4 has a longer battery life than the average portable speaker (14 hours vs 12 hours).
Better ingress protection
Ultimate Ears WONDERBOOM 4 has better ingress protection than the average portable speaker (IP67 vs IPX5).
1 m deeper waterproof rating
Ultimate Ears WONDERBOOM 4 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
Resists accidental impacts
Ultimate Ears WONDERBOOM 4 resists accidental impacts, while the average portable speaker lacks an impact-resistance rating.
Floats in water
Ultimate Ears WONDERBOOM 4 floats in water, while the average portable speaker does not float in water.
5 °C higher maximum operating temperature
Ultimate Ears WONDERBOOM 4 has a higher maximum operating temperature than the average portable speaker (45 °C vs 40 °C).
Has an equalizer
Ultimate Ears WONDERBOOM 4 has an equalizer, while the average portable speaker does not have an equalizer.
Supports fast pairing
Ultimate Ears WONDERBOOM 4 supports fast pairing, while the average portable speaker does not support fast pairing.
Supports party mode
Ultimate Ears WONDERBOOM 4 supports party mode, while the average portable speaker does not support party mode.
2 more EQ presets
Ultimate Ears WONDERBOOM 4 has more EQ presets than the average portable speaker (2 vs 0).
Has a sleep timer
Ultimate Ears WONDERBOOM 4 has a sleep timer, while the average portable speaker does not have a sleep timer.
380 g lighter
Ultimate Ears WONDERBOOM 4 is lighter than the average portable speaker (420 g vs 800 g).
8.57 cm narrower
Ultimate Ears WONDERBOOM 4 is narrower than the average portable speaker (9.5 cm vs 18.1 cm).
Supports firmware updates
Ultimate Ears WONDERBOOM 4 supports firmware updates, while the average portable speaker does not support firmware updates.
5 newer
Ultimate Ears WONDERBOOM 4 was released more recently than the average portable speaker (2024 vs 2019).

Why is Ultimate Ears WONDERBOOM 4 worse than the average portable speaker?

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10 mm smaller main driver
Ultimate Ears WONDERBOOM 4 has a smaller main driver than the average portable speaker (40 mm vs 50.00 mm).
Primary driver diameter: 40.00 mm.
5 dB SPL lower maximum sound pressure
Ultimate Ears WONDERBOOM 4 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.
10 W less audio output power
Ultimate Ears WONDERBOOM 4 has less audio output power than the average portable speaker (10 W vs 20.00 W).
Total RMS output: 10.00 W.
15 Hz less deep bass extension
Ultimate Ears WONDERBOOM 4 has less deep bass extension than the average portable speaker (75 Hz vs 60.00 Hz).
Lower frequency-response endpoint: 75.00 Hz.
Does not have a 3.5 mm AUX input
Ultimate Ears WONDERBOOM 4 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.
500 mAh less battery capacity
Ultimate Ears WONDERBOOM 4 has a smaller battery capacity than the average portable speaker (2100 mAh vs 2,600 mAh).
10 mm smaller main driver
Ultimate Ears WONDERBOOM 4 has a smaller main driver than the average portable speaker (40 mm vs 50.00 mm).
Primary driver diameter: 40.00 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
Ultimate Ears WONDERBOOM 4 has a smaller main driver than the average portable speaker (40 mm vs 50.00 mm).40.00 mm vs 50.00 mm
5 dB SPL lower maximum sound pressure
Ultimate Ears WONDERBOOM 4 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
Ultimate Ears WONDERBOOM 4 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
Ultimate Ears WONDERBOOM 4 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
Ultimate Ears WONDERBOOM 4 does not have a 3.5 mm AUX input, while the average portable speaker has a 3.5 mm AUX input.
10 W less audio output power
Ultimate Ears WONDERBOOM 4 has less audio output power than the average portable speaker (10 W vs 20.00 W).
Total RMS output: 10.00 W.
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
Ultimate Ears WONDERBOOM 4 has less audio output power than the average portable speaker (10 W vs 20.00 W).10.00 W vs 20.00 W
15 Hz less deep bass extension
Ultimate Ears WONDERBOOM 4 has less deep bass extension than the average portable speaker (75 Hz vs 60.00 Hz).
Lower frequency-response endpoint: 75.00 Hz.
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
Ultimate Ears WONDERBOOM 4 has less deep bass extension than the average portable speaker (75 Hz vs 60.00 Hz).75.00 Hz vs 60.00 Hz
500 mAh less battery capacity
Ultimate Ears WONDERBOOM 4 has a smaller battery capacity than the average portable speaker (2100 mAh vs 2,600 mAh).
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
Ultimate Ears WONDERBOOM 4 has a smaller battery capacity than the average portable speaker (2100 mAh vs 2,600 mAh).2100 mAh vs 2600 mAh

Graphic comparison of Ultimate Ears WONDERBOOM 4 and other products in the Portable Speakers category

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Third-party reviews

United Kingdom

(Reviews last updated: August 2026)

What customers like about Ultimate Ears WONDERBOOM 4?

Surprising volume and punchy bass for its small, compact size.
True 360-degree sound projection makes room placement effortless.
Highly durable design that is drop-proof and rugged.
IP67 dustproof and waterproof rating allows it to safely float in pools.
Long battery life delivering up to 14 hours of playback.
Upgraded to a modern, universally convenient USB-C charging port.
A useful new Podcast EQ mode that noticeably enhances vocal clarity.

What customers dislike about Ultimate Ears WONDERBOOM 4?

Noticeable sound compression and slight audio distortion at maximum volume.
Lacks a companion app or a customizable graphic EQ.
Does not support fast charging capabilities.
No built-in microphone, preventing its use as a hands-free speakerphone.
Cannot wirelessly pair or chain with older generations like the Wonderboom 2.

Expert reviews

soundguys.com

14/08/2024

Summary of the review

Ultimate Ears Wonderboom 4 review - SoundGuys

The SoundGuys review gives the Ultimate Ears Wonderboom 4 a 6.5/10, characterizing it as a minor, disappointing update with almost no hardware changes from the previous model. While the speaker boasts excellent IP67-rated ruggedness, a floating design, USB-C charging, and a new Podcast EQ mode, its lack of internal audio upgrades makes it a difficult recommendation over the discounted Wonderboom 3.

techradar.com

26/09/2024

Summary of the review

Ultimate Ears Wonderboom 4 review: a surprisingly punchy... - TechRadar

The TechRadar review of the Ultimate Ears Wonderboom 4 praises the compact Bluetooth speaker as a top, durable, and waterproof (IP67) portable option featuring a 14-hour battery life and an improved USB-C charging port. While offering punchy 360-degree sound and a new dedicated podcast mode, the review finds the minimal upgrades over the predecessor make it less valuable than the cheaper Wonderboom 3 for budget-conscious users.

t3.com

21/10/2024

Summary of the review

Ultimate Ears Wonderboom 4 review: a top-class rugged compact... - T3

The Ultimate Ears Wonderboom 4 is recognized by T3 as a top-class, rugged, and IP67-rated compact speaker featuring improved USB-C charging, punchy sound, and excellent durability. While praised for its portability and rugged design, the review notes the device offers very limited innovation, with the hardware remaining largely unchanged from the Wonderboom 3, save for the updated charging port.

techadvisor.com

24/08/2024

Summary of the review

Ultimate Ears Wonderboom 4 review - Tech Advisor

The Ultimate Ears Wonderboom 4 is a highly portable, IP67-rated waterproof speaker offering bright 360-degree sound, featuring an "Outdoor Boost" mode and a new Podcast EQ setting. While it boasts impressive durability and maintained bass for its size, the speaker suffers from a thin high-end, reduced bass during Outdoor Boost, and a Podcast Mode that can make voices sound featureless.

whatsthebest.co.uk

29/01/2025

Summary of the review

Ultimate Ears Wonderboom 4 review: budget sound - What's The Best If you want, I can also look for video-based reviews on YouTube or provide a compari...

The What's the Best review highlights the Ultimate Ears Wonderboom 4 as an exceptional, highly precise budget speaker featuring a, gut-punching bass response, 360-degree audio, and a durable, floating design. The portable unit includes a 14-hour battery with USB-C charging and a specialized Podcast Mode. However, the speaker lacks a dedicated mobile app for EQ adjustments and is not ideal as a primary, standalone home audio system.

rtings.com

23/04/2026

Summary of the review

The 4 Best Ultimate Ears Speakers of 2026 - RTINGS.com Whats The Best

According to RTINGS, Ultimate Ears offers durable, portable, and water-resistant Bluetooth speakers designed for outdoor use, highlighted by excellent 360-degree sound, long battery life, and comprehensive app-based EQ customization. However, the lineup generally lacks deep, thumpy low-bass, voice assistants, and advanced Wi-Fi connectivity options like Apple AirPlay or Chromecast.

rtings.com

20/09/2024

Summary of the review

Ultimate Ears WONDERBOOM 4 Review - RTINGS.com

The Ultimate Ears WONDERBOOM 4 is a rugged, portable Bluetooth speaker featuring excellent 360-degree sound, an IP67 waterproof design, and a dedicated "Podcast" EQ preset. While suitable for outdoor use with a 13-hour battery, the compact speaker lacks deep bass, suffers from compression at high volumes, and lacks both a microphone and companion app support.

pcwelt.de

19/08/2024

Summary of the review

Ultimate Ears Wonderboom 4: Budget-friendly and waterproof speaker review

The PCWelt review highlights the €99.99 Ultimate Ears Wonderboom 4 as a durable, IP67-rated, and floating portable speaker, offering 360-degree sound, a 14-hour battery life, and USB-C charging. While suitable for outdoor use, the review notes as cons that the audio quality lags behind competitors, distorts at high volumes, lacks a supporting app, and offers minimal upgrades over the cheaper Wonderboom 3.

test.de

23/01/2026

Summary of the review

Review: Ultimate Ears Wonderboom 4 | Stiftung Warentest

The Ultimate Ears Wonderboom 4, reviewed in the Stiftung Warentest loudspeaker test, achieved a satisfactory (3.2) rating, ranking 22nd out of 32 models. It is praised for its impressive sound quality for its size, USB-C charging, dedicated "Outdoor Boost" and "Podcast" modes, and a highly durable, IP67-rated waterproof, floating design. Conversely, the speaker suffers from limited battery life (around 11.3 hours), largely ineffective equalizer options, a low-quality carrying strap, and significant harmonic distortion above 5% in the mid-frequency range when operating at maximum volume.

lesnumeriques.com

13/08/2024

Summary of the review

Wonderboom 4 Review: A rugged speaker with a great evolution

The Les Numériques review highlights the Ultimate Ears Wonderboom 4 as a rugged, IP67-rated portable speaker featuring improved USB-C charging and a new Podcast mode for 360° sound. While praised for its durability and powerful output, the speaker is criticized for lacking innovation over its predecessor, featuring no app-based EQ customization, and missing a built-in microphone.

clubic.com

23/07/2024

Summary of the review

Ultimate Ears Wonderboom 4 Review: The excellent rugged speaker finally switches to USB-C

The Clubic review of the Ultimate Ears Wonderboom 4 highlights that the speaker retains its rugged, IP67 waterproof design while finally adding a USB-C charging port and a new "Podcast" EQ mode. Pros include the compact, buoyant design, loud 360-degree sound, 14-hour battery life, and solid Bluetooth performance. However, cons center on technical stagnation, specifically the lack of a companion app, no voice assistant, no microphone for calls, and a lack of fast charging despite the new USB-C port.

frandroid.com

22/07/2024

Summary of the review

Ultimate Ears Wonderboom 4 Review: Our Full Verdict

The Ultimate Ears Wonderboom 4 earns an 8/10 rating for its excellent portability, 14-hour battery life, and rugged, waterproof IP67 design that floats. While offering pleasant 360-degree sound and updated USB-C/Bluetooth multipoint features, the review notes a lack of technical evolution from the previous model, the absence of a companion app for EQ, and limited "Party Up" compatibility.

tomshw.it

23/07/2024

Summary of the review

Ultimate Ears (Logitech) Wonderboom 4 | Review & Test

The Tom's Hardware review evaluates the Ultimate Ears Wonderboom 4 as a robust, IP67-certified, and highly portable Bluetooth speaker, highlighting its 14-hour battery life, dedicated Podcast Mode, and Outdoor Boost feature. While praised for its versatility, the review notes limitations, including a lack of deep bass, missing custom EQ, and potential treble harshness at volumes exceeding 60%.

techprincess.it

09/08/2024

Summary of the review

Ultimate Ears Wonderboom 4 Review

The Techprincess review praises the Ultimate Ears Wonderboom 4 as a portable, powerful Bluetooth speaker featuring IP67 waterproofing, USB-C charging, and a dedicated Podcast Mode, all constructed with 31% recycled plastic. While offering robust 360-degree sound, the review notes the €99.99 price point and limitations in deep bass reproduction due to its compact form factor.

consumentenbond.nl

juli 2024

Summary of the review

Ultimate Ears Wonderboom 4 Black - Test, Reviews & Prices

The Consumentenbond review characterizes the 0.419 kg Ultimate Ears Wonderboom 4 as a highly compact, waterproof, and floating Bluetooth speaker with 8.5 Watts of power. Pros include physical on-device bass adjustment, durability, and a USB port that allows charging smartphones from the speaker's battery. Notable cons include the lack of a separate charging adapter in the box and a non-replaceable battery that limits long-term repairability.

global.techradar.com

13/02/2026

Summary of the review

The best Bluetooth speakers in 2026 according to our audio specialists

The TechRadar Netherlands 2026 guide identifies the JBL Flip 7 as the best overall Bluetooth speaker for its 5-star rating, value, and 14-hour battery, while highlighting the JBL Go 4 for budget, Sonos Roam 2 for Wi-Fi, and Bose SoundLink Max for premium quality. These top-rated devices generally feature rugged, water-resistant designs with impressive, punchy sound, although specific drawbacks include high costs for premium models, limited bass/short battery life in ultra-compact options, and significant weight for party speakers.

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