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Publications
6 LEADING PUBLICATION REVIEWS
David Abraham, Christopher Steward, and Yannick Khong from RTINGS provide a measured and balanced assessment of the Ultimate Ears BOOM 4 Portable Speaker. They highlight its excellent portability, durable IP67-rated design, and notably strong directivity that delivers consistent 360-degree sound across listening angles. The addition of USB-C charging and a solid 12-hour battery life are welcomed improvements. However, the review points out that the BOOM 4 offers only modest bass performance, with limited low-end impact that may disappoint fans of bass-heavy genres. Treble frequencies can sound muffled, though the companion app’s graphic EQ helps tailor the sound somewhat. The speaker performs well for mid-range clarity, making it suitable for podcasts and dialogue-heavy content, but it lacks multi-device Bluetooth pairing and voice assistant support. Overall, the review conveys cautious enthusiasm, praising the BOOM 4’s portability and soundstage while noting its compromises in bass depth and playback controls.
Thomas Deehan from Trusted Reviews highlights the Ultimate Ears Boom 4 as a solid, reliable portable speaker that builds modestly on its predecessor rather than delivering a major overhaul. While the design remains largely unchanged from the Boom 3, its rugged IP67 rating, tactile buttons, and long-lasting 15-hour battery life make it a dependable choice for both outdoor adventures and everyday use. The switch to USB-C charging is a welcome update, though it may not justify an upgrade for existing Boom 3 owners. Sonically, the Boom 4 impresses with balanced, warm audio that handles a variety of genres well, maintaining clarity even at higher volumes without distortion. Features like PartyUp for multi-speaker syncing and customizable EQ presets add versatility. Despite fewer color options and minimal feature changes, the Boom 4’s competitive price and dependable performance make it an appealing option for new buyers seeking a durable, fun Bluetooth speaker.
David Abraham, Christopher Steward, and Yannick Khong from RTINGS provide a measured and balanced assessment of the Ultimate Ears BOOM 4 Portable Speaker. They highlight its excellent portability, durable IP67-rated design, and notably strong directivity that delivers consistent 360-degree sound across listening angles. The addition of USB-C charging and a solid 12-hour battery life are welcomed improvements. However, the review points out that the BOOM 4 offers only modest bass performance, with limited low-end impact that may disappoint fans of bass-heavy genres. Treble frequencies can sound muffled, though the companion app’s graphic EQ helps tailor the sound somewhat. The speaker performs well for mid-range clarity, making it suitable for podcasts and dialogue-heavy content, but it lacks multi-device Bluetooth pairing and voice assistant support. Overall, the review conveys cautious enthusiasm, praising the BOOM 4’s portability and soundstage while noting its compromises in bass depth and playback controls.
Thomas Deehan from Trusted Reviews highlights the Ultimate Ears Boom 4 as a solid, reliable portable speaker that builds modestly on its predecessor rather than delivering a major overhaul. While the design remains largely unchanged from the Boom 3, its rugged IP67 rating, tactile buttons, and long-lasting 15-hour battery life make it a dependable choice for both outdoor adventures and everyday use. The switch to USB-C charging is a welcome update, though it may not justify an upgrade for existing Boom 3 owners. Sonically, the Boom 4 impresses with balanced, warm audio that handles a variety of genres well, maintaining clarity even at higher volumes without distortion. Features like PartyUp for multi-speaker syncing and customizable EQ presets add versatility. Despite fewer color options and minimal feature changes, the Boom 4’s competitive price and dependable performance make it an appealing option for new buyers seeking a durable, fun Bluetooth speaker.
David Abraham, Christopher Steward, and Yannick Khong from RTINGS provide a measured and balanced assessment of the Ultimate Ears BOOM 4 Portable Speaker. They highlight its excellent portability, durable IP67-rated design, and notably strong directivity that delivers consistent 360-degree sound across listening angles. The addition of USB-C charging and a solid 12-hour battery life are welcomed improvements. However, the review points out that the BOOM 4 offers only modest bass performance, with limited low-end impact that may disappoint fans of bass-heavy genres. Treble frequencies can sound muffled, though the companion app’s graphic EQ helps tailor the sound somewhat. The speaker performs well for mid-range clarity, making it suitable for podcasts and dialogue-heavy content, but it lacks multi-device Bluetooth pairing and voice assistant support. Overall, the review conveys cautious enthusiasm, praising the BOOM 4’s portability and soundstage while noting its compromises in bass depth and playback controls.
Thomas Deehan from Trusted Reviews highlights the Ultimate Ears Boom 4 as a solid, reliable portable speaker that builds modestly on its predecessor rather than delivering a major overhaul. While the design remains largely unchanged from the Boom 3, its rugged IP67 rating, tactile buttons, and long-lasting 15-hour battery life make it a dependable choice for both outdoor adventures and everyday use. The switch to USB-C charging is a welcome update, though it may not justify an upgrade for existing Boom 3 owners. Sonically, the Boom 4 impresses with balanced, warm audio that handles a variety of genres well, maintaining clarity even at higher volumes without distortion. Features like PartyUp for multi-speaker syncing and customizable EQ presets add versatility. Despite fewer color options and minimal feature changes, the Boom 4’s competitive price and dependable performance make it an appealing option for new buyers seeking a durable, fun Bluetooth speaker.
YouTube
4 LEADING EXPERT & INFLUENCER REVIEWS
Eddie from HotshotTek praises the Ultimate Ears BOOM 4 for its rugged durability, 360-degree sound, and reliable 15-hour battery life, highlighting its unique megaphone feature and USB-C power bank capability. While impressed by its outdoor performance and EQ customization, he notes its Bluetooth range and sound quality lag behind the Beats Pill.
Cameron Dougherty Tech praises the Ultimate Ears BOOM 4 for its durable IP67-rated design, balanced 360-degree sound, and improved volume over the original Boom. He highlights the new USB-C charging and useful Magic Button playlists but notes occasional distortion at max volume and limited bass for bass enthusiasts.
Eddie from HotshotTek praises the Ultimate Ears BOOM 4 for its rugged durability, 360-degree sound, and reliable 15-hour battery life, highlighting its unique megaphone feature and USB-C power bank capability. While impressed by its outdoor performance and EQ customization, he notes its Bluetooth range and sound quality lag behind the Beats Pill.
Cameron Dougherty Tech praises the Ultimate Ears BOOM 4 for its durable IP67-rated design, balanced 360-degree sound, and improved volume over the original Boom. He highlights the new USB-C charging and useful Magic Button playlists but notes occasional distortion at max volume and limited bass for bass enthusiasts.
Store Reviews
CUSTOMER REVIEWS FROM 2 STORES
Amazon users consistently praise the Ultimate Ears BOOM 4 Portable Speaker for its clear, powerful sound and impressive durability. Many highlight its ability to deliver loud, well-balanced audio with decent bass despite its compact size, making it suitable for both indoor and outdoor use. Reviewers appreciate the speaker’s waterproof design and rugged build, noting it withstands drops, water exposure, and even dust without performance loss. Portability stands out as a key feature, with customers enjoying its lightweight form that fits easily in cup holders or pockets, enhancing convenience during activities like showering or traveling. Several users applaud the upgraded USB-C charging port, which simplifies charging by using a common cable and speeds up the process. The speaker’s long battery life impresses many, especially when used at moderate volumes, though some report shorter battery longevity or connectivity issues after extended use. Bluetooth pairing generally works smoothly, and the companion app adds useful features such as EQ settings and remote power control, though a few mention occasional hiccups with the remote power function. Unique insights from Amazon reviewers include the speaker’s ability to automatically play playlists via a button hold (currently limited to SoundCloud and Apple Music), and the tactile, raised buttons that facilitate easy operation in the dark. The color options receive positive remarks for their attractive, subtle tones that stand out from typical speaker designs. Overall, users find the BOOM 4 worth the investment for its combination of sound quality, durability, and portability, confidently recommending it as a long-lasting, family-friendly speaker.
4.4 Stars / Many verified reviews
Customers on Best Buy provide positive feedback for the Ultimate Ears BOOM 4 Portable Speaker based on their overall experiences.
4.6 Stars / Some reviews
Forum Reviews
CUSTOMER REVIEWS FROM 1 FORUM
Reddit users generally express mixed but slightly positive sentiments about the Ultimate Ears BOOM 4 Portable Speaker, appreciating its 360° sound design and portability, which suits both indoor and outdoor use. Many find the sound quality decent, especially at moderate volumes, with improved bass compared to earlier models. However, some users report issues with harsh treble at higher volumes and occasional Bluetooth connectivity problems. New shoppers often value its clear, balanced sound and ease of use, while those considering upgrades debate its improvements over previous versions, with some preferring alternatives for richer bass or less harsh highs. Overall, the BOOM 4 is seen as a solid, versatile speaker with minor drawbacks.
Some comments
In-Depth Review
Highlights
- •Rugged waterproof constructionIP67-rated, floatable, drop-resistant
- •True 360-degree audioOmnidirectional sound for even coverage
- •Long battery promiseAdvertised to provide up to 15 hours
- •Multi-speaker pairingPartyUp pairing for expanded setups
- •One-touch playback controlMagic Button for playlists and playback
- •App-based EQCustom and preset equalizer via app
Considerations
- •Battery life variabilityUsers report inconsistent runtimes (some very short)
- •Intermittent Bluetooth dropsConnection can be choppy or disconnect unpredictably
- •Limited low-end punchBass present but not very deep
- •PartyUp range limitsLinked-speaker range smaller than Bluetooth range
- •App/control quirksSome users report unreliable remote features
- •Long-term degradation reportsA few users note sound or battery decline
Ultimate Ears has long been a respected name in portable audio, and this speaker aims to uphold that reputation with IP67-rated waterproofing and a rugged build designed for adventure. Tailored for outdoor enthusiasts and casual listeners alike, it promises 360-degree sound coverage, letting music fill every corner without fuss. The battery life is marketed at up to 15 hours of playback, striking a balance between daylong use and portability—helpful when outlets are scarce. Connectivity boasts an impressive 147-foot Bluetooth range, though real-world stability may vary. Bass performance favors clarity over earth-shaking lows, appealing to those who prefer balanced tunes on the go. Compact yet durable, its design encourages travel-friendly use without sacrificing resilience or style. If you value tough construction alongside versatile sound delivery, these upcoming sections will shed light on how well this model holds up in everyday scenarios—and whether it truly earns its adventurous badge.

Durability (Build & IP)
The speaker's IP67 rating ensures it’s dustproof and waterproof, letting you take it anywhere without worry. Its drop-proof design up to 5 feet supports accidental tumbles during adventures. The robust fabric grille covering nearly the entire surface adds both protection and style, while its floatable construction means poolside jams are no problem. User feedback generally backs these claims with praise for ruggedness, making this a truly durable choice for outdoor enthusiasts seeking peace of mind.

Battery Life (Real-world Runtime)
Promising up to 15 hours of playback, battery life mostly meets expectations but shows some variability in real use; some users report shorter durations under heavy usage conditions. Powered by a rechargeable lithium-ion cell charged via USB-C, it aims to support daylong outings without constant recharging hassles. This endurance strikes a good middle ground between ultra-portables and larger speakers needing frequent power breaks—a handy feature if you're often on the move or away from outlets.

Sound Quality (Clarity & 360º)
Delivering on its promise of immersive sound, this speaker offers clear and balanced audio through its unique 360-degree omnidirectional design, which spreads music evenly in all directions. The combination of active drivers with passive radiators crafts a natural midrange and crisp treble balance that users appreciate indoors or out. While bass is solid but not overpowering, the overall clarity keeps listeners engaged—experts note it's perfect for those who prefer fidelity over booming lows.
Bluetooth Connectivity (Range & Stability)
With an advertised wireless range of about 147 feet, Bluetooth connectivity allows flexible placement far from your device—ideal for backyard parties or indoor wandering tunes. Most find pairing straightforward thanks to tactile buttons and voice prompts; however, intermittent drops have been reported occasionally depending on environment interference. Overall stability leans positive though not flawless, so expect smooth streaming most times but occasional hiccups when walls or signals get crowded around you.

Conclusion
Drawing the final curtain on this speaker’s story, its rugged IP67 durability stands out as a fortress against outdoor mishaps, making it a trusty sidekick for adventures. The 360-degree soundstage offers impressive clarity that fills spaces evenly but leans toward balanced mids rather than thunderous lows—so if you crave deep bass, temper expectations. Battery life generally supports long days with an advertised 15-hour runtime, though some users report shorter stretches in practice. Bluetooth connectivity provides generous range yet occasionally trips over signal drops. Its lightweight design and handy Magic Button controls add to ease of use and portability, blending convenience with toughness. This model suits those who prize resilient build quality paired with clear audio over party-level volume or booming bass power—a solid pick for casual audiophiles seeking versatility without frills. Ultimately, it delivers well-rounded performance that earns respect without demanding superstardom status.
Feature Scores
This reflects reviews and ratings from established critics, journalists, and users who have evaluated the item. Their opinions provide a comprehensive assessment.
Performance
Sound Quality
4/5
Bass Performance
3/5
Maximum Volume
4/5
Battery Life
4/5
Wireless Range
4/5
Connection Stability
4/5
Durability
4/5
IP Water Resistance
5/5
Value
Price-to-Quality Ratio
4/5
Warranty Coverage
3/5
Included Accessories
4/5
Design
Portability
4/5
Controls and Usability
4/5
Aesthetic Appeal
4/5
Health
Hearing Safety
3/5
Materials Safety
3/5
Safety
Electrical Safety and Certifications
3/5
Overheat and Short-Circuit Protection
3/5
Drop and Impact Protection
4/5
Sustainability
Battery Replaceability
2/5
Recyclability and Materials
4/5
Energy Efficiency
3/5
Experience Style
Feature Richness
4/5
Customization and EQ
4/5
Setup Simplicity
4/5
Specifications
This section outlines the product's key facts, covering essential features, details, dimensions, materials, and any unique characteristics that define its functionality and usability.
Performance
Design
Safety
Sustainability
Experience Style
Frequently Asked Questions
5 Questions













