Ultimate Ears

Ultimate Ears WONDERBOOM 4

Name: WONDERBOOM 4
Brand: Ultimate Ears
SKU: B0BRXJ9WTD
Price: 97 JPY
Availability: InStock
Rating: 4.2625 (1 reviews)

Rating

Model: 984-001876

$97(incl. tax)Amazon price as of 2025-08-08

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Product Overview

The Ultimate Ears WONDERBOOM 4 is a compact and rugged portable Bluetooth speaker designed for both indoor and outdoor use. It features surprisingly big 360-degree sound with enhanced bass, up to 14 hours of battery life, and an IP67 rating for water and dust resistance. The speaker also floats, making it perfect for pool parties and beach trips. With its simple controls and durable design, the WONDERBOOM 4 is an excellent choice for on-the-go listening. It also has an outdoor boost mode and podcast mode.

Product Specifications

Speaker Type

OutdoorN/A

Bluetooth Version

-N/A

Battery Life

14hours

Water Resistance

TrueN/A

Wireless Range

40meters

Charging Time

-hours

Weight

550grams

Dimensions

-mm

Supported Codecs

-N/A

Built-in Microphone

-N/A

Size & Weight

Weight

0.55 Kilograms

Hight

Width

Depth

Features

Waterproof Function

Feature Description

A function that protects the speaker from water splashes and rain. You can use it without worry at the beach, by the pool, or in the bathroom. Enjoy music anywhere without worrying about water damage.

About This Product

IP67 waterproof rating allows the speaker to be submerged in up to 1 meter of water for 30 minutes, making it perfect for use at the pool, beach, or in the shower. Enjoy worry-free listening in wet environments.

Built-in Microphone Function

Feature Description

A function that allows hands-free calling when connected to a smartphone. You can answer calls directly through the speaker while doing housework or working. Convenient for hands-free communication.

About This Product

Does not have a built-in microphone for hands-free calling. Users will need to use their connected device to answer calls, limiting convenience in situations where hands-free communication is desired.

External Device Charging Function

Feature Description

A function that allows charging smartphones and other devices using the speaker's battery. Useful as a backup battery for your smartphone when you are outdoors. Prevents battery drain when away from power sources.

About This Product

Does not support external device charging. The speaker cannot be used as a power bank to charge smartphones or other devices, which may be a drawback for users who need to keep their devices powered on the go.

Stereo Pairing Function

Feature Description

A function that allows connecting two identical speakers for stereo playback. You can enjoy a wider soundstage and more powerful sound by separating the left and right channels. Enhances the immersive experience when watching movies or listening to music.

About This Product

Allows pairing with another WONDERBOOM 4 speaker for stereo sound. This enhances the listening experience by creating a wider soundstage and more immersive audio, perfect for parties and gatherings.

Preset Equalizer Function

Feature Description

A function that allows selecting sound modes optimized for different music genres. You can easily switch to the ideal sound settings for pop, rock, or classical music. Enjoy music with sound quality tailored to each genre.

About This Product

Offers Outdoor Boost and Podcast modes for tailored sound profiles. These modes optimize the audio for specific environments and content, enhancing the listening experience for outdoor use and podcast listening.

Voice Assistant Activation Function

Feature Description

A function that allows activating voice assistants like Siri or Google Assistant. You can control music playback, check the weather, and perform other tasks hands-free. Provides smart control without touching your smartphone.

About This Product

Does not support voice assistant activation. Users cannot control music playback or access voice assistants like Siri or Google Assistant directly through the speaker, requiring them to use their connected device.

SHOPSTAFF Rating Score

Ranked #8 out of 99 products in Category

4.3

Overall Rating

The Wonderboom 4 is a durable, portable speaker with good sound for its size. Lacks advanced features like USB charging and voice assistant. Good for casual listening.

Sound Quality (Frequency Response, Clarity)

4.0

Rating Criteria Explanation

The most crucial aspect of any speaker is its sound quality. Consider the frequency response range – a wider range (e.g., 20Hz - 20kHz) generally indicates the speaker can reproduce a broader spectrum of sounds, from deep bass to crisp highs. Clarity refers to how well you can distinguish individual instruments and vocals within a song. A speaker with good clarity will sound detailed and defined, while a speaker with poor clarity might sound muddy or muffled. Listen for distortion at higher volumes, which indicates the speaker is struggling to reproduce the sound accurately. Read reviews and, if possible, listen to the speaker in person or watch sound tests online before purchasing. Pay attention to descriptions of bass response (is it boomy or tight?), mid-range clarity (are vocals clear and present?), and treble detail (are high frequencies crisp without being harsh?).

Rating Comments

Offers clear 360-degree sound with good bass for its size. The Outdoor Boost and Podcast modes provide tailored sound profiles, though clarity may be slightly sacrificed in these modes. Overall, a rich and enjoyable listening experience.

Battery Life

4.5

Rating Criteria Explanation

A portable speaker is only as good as its battery life. Consider how long you'll typically use the speaker between charges. If you plan on using it for long periods outdoors, like camping or at the beach, a longer battery life is essential. Pay attention to the stated battery life and read reviews to see if it matches real-world performance. Battery life is often specified at a moderate volume level; playing music at higher volumes will drain the battery faster. Also, consider the charging time. A speaker that takes a very long time to charge can be inconvenient. Some speakers also offer power bank functionality, allowing you to charge your phone or other devices, which can be a valuable feature.

Rating Comments

Provides up to 14 hours of playtime on a single charge, making it suitable for extended outdoor use. This ensures that the music keeps playing throughout the day without needing frequent recharges, enhancing its portability.

Durability and Water Resistance

4.8

Rating Criteria Explanation

Since it's a portable speaker, durability is key. Look for speakers with rugged designs that can withstand bumps, drops, and exposure to the elements. Water resistance is also important, especially if you plan on using the speaker near water (pool, beach, shower). IP ratings (e.g., IPX5, IPX7) indicate the level of water resistance. IPX5 means the speaker can withstand splashes of water, while IPX7 means it can be submerged in water for a short period. Consider the materials used in construction. Speakers with rubberized housings or reinforced corners are generally more durable. Read reviews to see how well the speaker holds up over time and in different conditions.

Rating Comments

Features an IP67 rating, making it waterproof, dustproof, and floatable. This rugged design ensures it can withstand submersion in water for 30 minutes and is protected against dust, making it ideal for outdoor adventures.

Bluetooth Connectivity and Range

4.3

Rating Criteria Explanation

Reliable Bluetooth connectivity is essential for a seamless listening experience. Look for speakers that support Bluetooth 5.0 or later, as these versions offer improved range, stability, and power efficiency. The stated Bluetooth range is also important, especially if you plan on moving around while using the speaker. A range of 30 feet or more is generally sufficient. Consider whether the speaker supports multi-point pairing, which allows you to connect to two devices simultaneously. This can be convenient if you want to switch between playing music from your phone and your tablet. Check reviews to see if users have experienced any connectivity issues, such as dropouts or difficulty pairing.

Rating Comments

Offers a reliable Bluetooth connection with a range of up to 40 meters (131 feet). This allows for flexible placement and movement without losing connection, providing a seamless listening experience.

Portability and Size

4.7

Rating Criteria Explanation

The ideal size and weight of a portable Bluetooth speaker depend on how you plan to use it. If you want something that's easy to carry in a backpack or purse, a smaller and lighter speaker is preferable. However, smaller speakers often have limitations in sound quality and battery life. Consider the overall dimensions and weight of the speaker, and whether it has a convenient carrying handle or strap. If you plan on using the speaker primarily at home, a slightly larger and heavier model might be acceptable, as it can offer better sound quality. Think about where you'll be using it most often.

Rating Comments

Compact and lightweight design makes it easy to carry in a backpack or purse. Its small size doesn't compromise on sound quality, making it a great choice for on-the-go listening and travel.

Extra Features (Microphone, AUX Input, USB Charging)

3.0

Rating Criteria Explanation

Consider any extra features that might be useful to you. Some speakers have built-in microphones for taking calls or using voice assistants like Siri or Google Assistant. An AUX input allows you to connect devices that don't have Bluetooth, such as older MP3 players. USB charging ports can be used to charge your phone or other devices. Some speakers also have FM radio functionality or support for playing music from USB drives or microSD cards. Evaluate which features are important to you and choose a speaker that offers the right combination of features.

Rating Comments

Includes Outdoor Boost and Podcast modes for tailored sound, but lacks advanced features like a built-in microphone, AUX input, or USB charging. These omissions limit its versatility compared to some competitors.

Manufacturer Reliability and Warranty

4.5

Rating Criteria Explanation

The reliability of the manufacturer is a significant factor in the longevity and overall satisfaction with your Bluetooth speaker. Established brands with a good reputation are generally a safer bet, as they are more likely to offer reliable products and good customer support. Research the manufacturer's history and read reviews to see what other customers have experienced. A solid warranty is also crucial. A longer warranty period indicates that the manufacturer has confidence in the quality of their product. Check the terms of the warranty to understand what is covered and what is not. A good warranty can provide peace of mind and protect you from unexpected repair costs.

Rating Comments

Ultimate Ears is a reputable brand known for producing quality audio products. The Wonderboom 4 comes with a limited warranty, providing peace of mind and assurance of product reliability.

Cost Performance

4.3

Rating Criteria Explanation

Ultimately, you need to consider the cost performance of the Bluetooth speaker. This means evaluating the features and performance of the speaker relative to its price. A more expensive speaker might offer better sound quality, battery life, and durability, but it might not be worth the extra cost if you don't need those features. Read reviews and compare different models to see which offers the best value for your money. Don't automatically assume that the most expensive speaker is the best choice. Consider your budget and prioritize the features that are most important to you.

Rating Comments

Offers excellent value for its price, providing a combination of good sound quality, durability, and portability. It's a worthwhile investment for those seeking a reliable and versatile Bluetooth speaker without breaking the bank.

Brand & Manufacturer Details

Ultimate Ears

Ultimate Ears creates portable speakers with big sound, durability, and bold designs, perfect for any adventure.

Considerations

Lacks advanced features like USB charging
Limited EQ customization options
Loud startup sound cannot be disabled

Recommended For

Casual listeners who want a durable and portable speaker
Outdoor enthusiasts who need a waterproof speaker
Travelers who want a compact and lightweight speaker

Not Recommended For

Audiophiles seeking high-fidelity sound
Users who need advanced features like USB charging or voice assistant
none in particular

Suitable For

Pool parties and beach trips
Camping and hiking
Casual listening at home or in the office

Not Suitable For

Quiet libraries or study environments
Formal business meetings
none in particular

Frequently Asked Questions (FAQ)

Q.I'm looking for a speaker to use while gardening. Is this a good option?

A.Yes! Staff confirmations mention it's great for gardening, with features like being waterproof, having rich sound even at high volumes, long battery life, and a durable build to withstand being dropped or left outside.

Q.I'm looking for a speaker to use while gardening. Is this a good option?

Q.How is the sound quality on this speaker?

A.Staff confirmations rave about the sound quality, describing it as having big, clear 360° sound with satisfying bass and great mids and highs. Some find the standard setting a little heavy on the bass, but overall, it's considered a high-quality sound experience. There are also Outdoor and Podcast modes.

Q.How is the sound quality on this speaker?

Q.Can I use this speaker in the shower or pool?

A.Yes, you can! The WONDERBOOM 4 is IP67-rated, meaning it's waterproof, dustproof, and floatable. It can be submerged in 1 meter of water for 30 minutes, making it suitable for use in the shower, by the pool, or at the beach.

Q.Can I use this speaker in the shower or pool?

Q.How easy is it to connect to my phone?

A.Staff confirmations indicate that connectivity is easy and stays connected consistently. It also features Google Fast Pair for quick and effortless Bluetooth pairing with Android devices.

Q.How easy is it to connect to my phone?

A.Staff confirmations indicate that connectivity is easy and stays connected consistently. It also features Google Fast Pair for quick and effortless Bluetooth pairing with Android devices.

Q.Is this speaker loud enough for outdoor use?

A.Yes, it is. Staff confirmations mention it has surprisingly bigger 360-degree sound and an Outdoor Boost mode specifically engineered for outdoor environments. One staff member even used it while kayaking and found it filled the area with solid sound.

Q.Is this speaker loud enough for outdoor use?

Q.I want to use this for listening to podcasts. Is it suitable for that?

A.Yes, it is. The speaker has a Podcast Mode that makes vocals rich and clear, ensuring podcasts sound great. One staff member specifically mentions using it for podcasts and audiobooks.

Q.I want to use this for listening to podcasts. Is it suitable for that?

A.Yes, it is. The speaker has a Podcast Mode that makes vocals rich and clear, ensuring podcasts sound great. One staff member specifically mentions using it for podcasts and audiobooks.

Q.I am worried about the speaker getting damaged easily. Is it durable?

A.Yes, it is considered very durable. Staff confirmations highlight that it's built like a tank and has held up to being dropped and left outside. It's also drop-tested from 5 ft / 1.5 m.

Q.I am worried about the speaker getting damaged easily. Is it durable?

A.Yes, it is considered very durable. Staff confirmations highlight that it's built like a tank and has held up to being dropped and left outside. It's also drop-tested from 5 ft / 1.5 m.

Q.Does the speaker have any annoying sounds?

A.One staff confirmation mentions that the start-up and turn-off sounds are a little loud and cannot be disabled. However, this seems to be a minor issue for most, and the overall value of the speaker is still highly rated.

Q.Does the speaker have any annoying sounds?

SHOPSTAFF Rating Ranking

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Speaker Type	Outdoor N/A	Bluetooth Version	- N/A
Battery Life	24 hours	Water Resistance	Water Resistant N/A
Wireless Range	10 meters	Charging Time	24 hours
Weight	3000 grams	Dimensions	- mm
Supported Codecs	- N/A	Built-in Microphone	Yes N/A

Waterproof FunctionBuilt-in Microphone FunctionExternal Device Charging FunctionStereo Pairing FunctionPreset Equalizer FunctionVoice Assistant Activation Function

4.6Overall Rating

4.8Sound Quality (Frequency Response, Clarity)

4.9Battery Life

4.7Durability and Water Resistance

4.6Bluetooth Connectivity and Range

4.5Portability and Size

4.7Extra Features (Microphone, AUX Input, USB Charging)

4.5Manufacturer Reliability and Warranty

4.2Cost Performance

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Speaker Type	Component N/A	Bluetooth Version	5.3 N/A
Battery Life	24 hours	Water Resistance	Waterproof N/A
Wireless Range	- meters	Charging Time	1.5 hours
Weight	- grams	Dimensions	- mm
Supported Codecs	- N/A	Built-in Microphone	True N/A

Waterproof FunctionBuilt-in Microphone FunctionExternal Device Charging FunctionStereo Pairing FunctionPreset Equalizer FunctionVoice Assistant Activation Function

4.5Overall Rating

4.3Sound Quality (Frequency Response, Clarity)

4.8Battery Life

4.7Durability and Water Resistance

4.5Bluetooth Connectivity and Range

4.2Portability and Size

4.4Extra Features (Microphone, AUX Input, USB Charging)

4.5Manufacturer Reliability and Warranty

4.5Cost Performance

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Speaker Type	Stereo N/A	Bluetooth Version	- N/A
Battery Life	24 hours	Water Resistance	Waterproof N/A
Wireless Range	100 meters	Charging Time	24 hours
Weight	- grams	Dimensions	- mm
Supported Codecs	- N/A	Built-in Microphone	- N/A

Waterproof FunctionBuilt-in Microphone FunctionExternal Device Charging FunctionStereo Pairing FunctionPreset Equalizer FunctionVoice Assistant Activation Function

4.5Overall Rating

4.5Sound Quality (Frequency Response, Clarity)

4.8Battery Life

4.9Durability and Water Resistance

4.6Bluetooth Connectivity and Range

4.0Portability and Size

4.3Extra Features (Microphone, AUX Input, USB Charging)

4.5Manufacturer Reliability and Warranty

4.2Cost Performance

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Speaker Type	Portable Speaker N/A	Bluetooth Version	- N/A
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Wireless Range	- meters	Charging Time	3 hours
Weight	997.9 grams	Dimensions	94 x 228.6 x 99 mm
Supported Codecs	- N/A	Built-in Microphone	- N/A

Waterproof FunctionBuilt-in Microphone FunctionExternal Device Charging FunctionStereo Pairing FunctionPreset Equalizer FunctionVoice Assistant Activation Function

4.5Overall Rating

4.3Sound Quality (Frequency Response, Clarity)

4.8Battery Life

4.9Durability and Water Resistance

4.5Bluetooth Connectivity and Range

4.2Portability and Size

4.6Extra Features (Microphone, AUX Input, USB Charging)

4.5Manufacturer Reliability and Warranty

4.0Cost Performance

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Speaker Type	Outdoor N/A	Bluetooth Version	- N/A
Battery Life	12 hours	Water Resistance	Waterproof N/A
Wireless Range	- meters	Charging Time	3 hours
Weight	290 grams	Dimensions	- mm
Supported Codecs	- N/A	Built-in Microphone	No N/A

Waterproof FunctionBuilt-in Microphone FunctionExternal Device Charging FunctionStereo Pairing FunctionPreset Equalizer FunctionVoice Assistant Activation Function

4.3Overall Rating

4.0Sound Quality (Frequency Response, Clarity)

4.5Battery Life

4.8Durability and Water Resistance

4.3Bluetooth Connectivity and Range

5.0Portability and Size

3.0Extra Features (Microphone, AUX Input, USB Charging)

4.5Manufacturer Reliability and Warranty

4.5Cost Performance

View Details Buy on Amazon Report Content Error

See more [2025 Edition] 99 Best Portable Bluetooth Speakers! Selection Guide and Latest Models Introduction comparisons

Ultimate Ears WONDERBOOM 4

Product Overview

Product Specifications

Size & Weight

Features

SHOPSTAFF Rating Score

Brand & Manufacturer Details

Considerations

Recommended For

Not Recommended For

Suitable For

Not Suitable For