# UE Boom 4 vs Marshall Emberton III: specs and price compared

A sourced, side-by-side comparison of the UE Boom 4 (Ultimate Ears) and Marshall Emberton III (Marshall) among portable speakers. UE Boom 4 is the cheaper of the two at $149.99.

## Side by side

| Spec | UE Boom 4 | Marshall Emberton III |
| --- | --- | --- |
| US price | $149.99 | $179.99 |
| Brand | Ultimate Ears | Marshall |
| Released | 2024 | 2023 |
| Battery hr | 15 | 32 |
| IP rating | IP67 | IP67 |
| Drivers | — | 2×2-inch full-range + 2 passive radiators |
| Bluetooth | — | 5.3 |
| Weight (lb) | — | 1.48 |
| Stereo pairing | Yes | Yes |
| Aux (in) | No | No |

## Key differences

- Battery hr: UE Boom 4 15 vs Marshall Emberton III 32

## What reviewers say

**Marshall Emberton III** — Two whitelisted outlets (Tom's Guide, TechRadar) hands-on tested the Emberton III over several weeks. Both praise class-leading battery life (30-32 hours vs a ~20-hour category norm), the rugged Marshall-amp styling, and impressively loud, punchy sound for the small size. Both flag the same core limitation: mids get de-emphasized and the sound turns harsh with bass distortion when pushed loud, plus there is no custom EQ (only three fixed presets) and no aux input. (2 sourced reviews.)

## Sources

- UE Boom 4: https://www.ultimateears.com/en-us/wireless-speakers/boom-4.html (ultimateears.com, verified 2026-06-15)
- Marshall Emberton III: https://www.marshall.com/us/en/product/emberton-iii (marshall.com, verified 2026-06-15)

Canonical: https://frontdeskreview.com/gear/portable-speakers/ue-boom-4-vs-marshall-emberton-iii/
Cite: Per The Front Desk Review, UE Boom 4 ($149.99) vs Marshall Emberton III ($179.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/portable-speakers/ue-boom-4-vs-marshall-emberton-iii/
License: CC BY 4.0.