Ultimate Ears WONDERBOOM 4

Name: Ultimate Ears WONDERBOOM 4
Brand: Ultimate Ears

Source checked and owner approved

A small poolside speaker that floats, with 360° playback and up to 14 hours of battery life. Outdoor Boost and Podcast Mode cover music outside and spoken audio.

Bettr Score · Balanced

63.8/100

100% evidence coverage · How this score works

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Ultimate Ears product photography

Verified specifications

Reference price: $99.99
Manufacturer source · 2026-09-10US manufacturer reference price or launch MSRP; not a live retailer offer.
Advertised battery life: 14 hours
Manufacturer source · 2026-09-10
Weight: 14.82 oz
Manufacturer source · 2026-09-10
Ingress protection: IP67
Manufacturer source · 2026-09-10
Durability tier: 4
Manufacturer source · 2026-09-10
Bluetooth version: 5.2
Manufacturer source · 2026-09-10
Can charge another device: No
Manufacturer source · 2026-09-10
USB audio input: No
Manufacturer source · 2026-09-10
Auracast or compatible broadcast pairing: No
Manufacturer source · 2026-09-10
Floats in water: Yes
Manufacturer source · 2026-09-10
Speakerphone: No
Manufacturer source · 2026-09-10

Independent speaker test evidence

GearLab test-category ratings, published 2026-05-29 · checked 2026-10-19. Bettr Than converts these original ratings to fixed benchmark points and applies its own weights; we did not perform these tests.

Sound quality (independent test): 4.8 /10
Portability (independent test): 8.0 /10
Volume performance (independent test): 3.8 /10
Durability (independent test): 8.5 /10
Battery endurance (independent test): 5.6 /10

Read the independent test and methodology

The Balanced Bettr Score for this evidence gives sound quality 60%, with portability, volume performance, durability, and battery endurance at 10% each. The remaining presets use the same test cohort. Price and advertised battery claims are shown separately and do not affect the score.

Compared configuration: United States · Current base configuration
Research notes: Manufacturer-published specifications normalized for cross-product comparison. Missing or inapplicable fields are not inferred.
Price basis: Launch MSRP; not a current retailer offer

Primary product source

Where to buy Ultimate Ears WONDERBOOM 4

eBay — New

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In stock · checked Oct 30, 2026

Price needs rechecking. Confirm at the retailer.

$58.49

Item + shipping · before tax

$58.49 + $0.00 shipping

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