Ultimate Ears
Ultimate Ears BOOM 4
Model BOOM 4
By MainBuyer Editorial Team · Published 2026-07-13 · Reviewed 2026-07-14
Quick answer
Is the Ultimate Ears BOOM 4 worth considering?
A strong option for tough, simple outdoor use, particularly where waterproof floating design matters more than no wi-fi or smart assistant.
Best for: Tough, simple outdoor use
Reasons to consider it
- Waterproof floating design
- 360-degree sound
- Simple physical controls
- Portable upright shape
Who should think twice
- No Wi-Fi or smart assistant
- Charging speed is unexceptional
- Sound is less weighty than larger speakers
Evidence and sources
What this assessment is based on
- Official manufacturer specifications and model identifiers.
- Retailer product information used to confirm availability and product positioning.
- Established independent review coverage and recurring ownership considerations.
- MainBuyer editorial judgement about suitability, limitations and value.
This is a research-based assessment. MainBuyer does not claim hands-on or laboratory testing unless a page explicitly says that testing took place.
Editorial standards
Commission rates do not determine our verdict or page order. See how we review products, our editorial policy and corrections policy.
Last editorial review: 2026-07-14