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  3. Boom 3i vs Wonderboom 4

Soundcore Boom 3i vs Ultimate Ears Wonderboom 4

What Boom 3i does better (2) and where Wonderboom 4 wins (0) — every spec side by side.

Soundcore Boom 3i
Soundcore · 2025Boom 3i
2 advantages≈ $75
vs
Ultimate Ears Wonderboom 4
Ultimate Ears · 2024Wonderboom 4
7.7Score
0 advantages≈ $75
Higher score
9.4Build & features8.1
Dimensions

Size comparison

Boom 3iWonderboom 4
210 × 8578.595.3 × 10495.3
Boom 3iWonderboom 4Difference
Height85 mm104 mm−19 mm
Width210 mm95.3 mm+114.7 mm
Depth78.5 mm95.3 mm−16.8 mm

Drawn to the same scale from the official dimensions (front and side).

Why is Boom 3i better than Wonderboom 4?

  1. Battery life16 h vs 14 h+14%
  2. Water resistance (IPx)IPx8 vs IPx7+14%

Why is Wonderboom 4 better than Boom 3i?

Wonderboom 4 has no measurable advantages in this pair.

Specifications

Side by side

Sound
Output power50 W—
Speaker channels2.0—
Channel count2—
Spatial / 3D audio—Yes
Adjustable equaliser—Yes
StereoYes—
Battery & charging
Battery life16 h14 h
Charging time—2.6 h
Mains poweredNoNo
Battery powered (portable)YesYes
Connectivity
WirelessYesYes
Bluetooth version5.3—
Bluetooth codecs—SBC
Hi-res codec (LDAC / aptX HD / LHDC)—No
aptX—No
LDAC—No
USB-CYesYes
Smart & streaming
Companion appYes—
Design & build
Weight—420 g
Width210 mm95 mm
Height85 mm104 mm
Depth78 mm95 mm
Protection ratingIP68IP67
Water resistance (IPx)IPx8IPx7
Dust protection (IP)66
FloatsYesYes
ColoursAdventurer Black, Deep Ocean Blue, Jungle Green, Desert Rose Brown—
Features
Party / stereo pairingYes—
Light effectsYes—
To compare: 0up to 4 models
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