Ultimate Ears WONDERBOOM 4 Blue
Score: 78/100
Ultimate Ears Boom 4 Blue
Score: 80/100Rankings
The BOOM 4 offers 360° sound, IPX7 protection and a lightweight design with 15 hours of playtime, plus wireless charging. Its modest volume, micro-USB charging, and limited bass keep it from dominating larger party scenarios. Ideal for travelers and outdoor enthusiasts who need a portable, durable speaker.
The Ultimate Ears WONDERBOOM 4 provides 360° sound, IP67 waterproofing and up to 14 hours of battery life in a lightweight, floatable design. Limited bass response, micro-USB charging and lack of a companion app may disappoint audiophiles. Perfect for outdoor enthusiasts and casual listeners needing durable, portable audio.
| Attribute | | |
|---|---|---|
14 hours | 15 hoursbest | |
| ↓ lower better | 420 gbest | 797.5 g |
40 mmbest | — | |
40 m | 45 mbest | |
| ↓ lower better | 168 minutesbest | — |
1 yearsbest | 1 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Battery & Power(1) | ||
Battery Life (hours) | 14 hours | 15 hours |
Build & Design(3) | ||
Weight (g) | 420 g | 797.5 g |
Dimensions (W×H×D) (mm) | 101.6x203.2x101.6 mm mm | 101.6 x 203.2 x 101.6 mm mm |
IP Rating | IP67 | IPX7 |
Connectivity(1) | ||
Bluetooth Range (m) | 40 m | 45 m |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the WONDERBOOM 4 for its lightweight, durable design, clean sound with little compression, and useful Outdoor Boost and Podcast modes, but they criticize its limited bass, recessed treble, lack of true stereo without pairing, and modest maximum SPL for larger indoor spaces.
Everyday users love the rugged, floating build and the surprisingly loud 360° sound, praising the long battery life and easy pairing, while repeatedly noting weak bass, outdated micro-USB charging, and the need to buy a second unit for true stereo as common pain points.
“360-degree cylindrical design delivers balanced sound from all listening angles, creating an immersive audio experience.”
“Maximum output limited to 86.9 dB SPL, which may be insufficient for large outdoor gatherings or parties.”
Choose BOOM 4 if you want a bit more power and battery life while keeping a portable size; stick with BOOM 3 for the smallest, lightest option.
Professional reviewers commend the BOOM 3 for its balanced 360-degree sound, rugged IP67 build, and impressive 13.7-hour battery life, awarding it a high portability score. However, they criticize its modest maximum volume of 86.9 dB SPL, limited bass impact, and the cumbersome micro-USB charging port, noting that it falls short for users needing high-output audio.
Everyday users love the BOOM 3's durability, waterproof reliability, and truly portable design with a handy hook, as well as the long battery life and immersive 360-degree sound in small outdoor settings. Common frustrations revolve around the speaker's limited loudness and the difficulty of plugging in the micro-USB charger.
