Marshall Emberton III vs Ultimate Ears BOOM 4

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Emberton III compared with BOOM 4

	MarshallEmberton III	Ultimate EarsBOOM 4
Overview
Released
Released	August 2024	June 2024
Sound
Type
Type	Portable speaker	Portable speaker
Channels
Channels	Stereo	–
Dolby Atmos
Dolby Atmos	No	No
Drivers
Drivers	Two 2-inch 10 W full-range dynamic drivers and two passive radiators, in a sealed cabinet; True Stereophonic 360° sound	Two 40 mm active drivers and two 46.1 × 65.2 mm passive radiators; 360° sound; maximum sound level 85 dBC
Amplifiers
Amplifiers	2 × 38 W class D	–
Frequency response
Frequency response	65 Hz – 20 kHz; up to 90 dB SPL at 1 m	–
Connections
Wi-Fi
Wi-Fi	No	No
Bluetooth
Bluetooth	Yes	Yes
AirPlay
AirPlay	No	No
Voice assistants
Voice assistants	None	None
Bluetooth
Bluetooth	Bluetooth 5.3, LE Audio-ready; up to 100 m range in free field; connects to two devices at once and remembers eight	Bluetooth (version not published); 45 m range
Ports
Ports	USB-C for charging (5 V, 3 A)	USB-C for charging
Multi-room
Multi-room	–	PartyUp in the UE | BOOM app with over 150 BOOM, MEGABOOM, EVERBOOM, EPICBOOM and HYPERBOOM speakers
App
App	Marshall Bluetooth app (iOS and Android), with battery preservation settings	UE | BOOM app, including Megaphone
Design
Battery life (maker's claim)
Battery life (maker's claim)	Up to 32 hours	Up to 15 hours
Water and dust resistance
Water and dust resistance	IP67	IP67
Weight
Weight	0.67 kg	0.62 kg (better)
Battery life detail
Battery life detail	Over 32 hours; 2 hours to charge; 20 minutes of charging gives 6 hours	Up to 15 hours; charges over USB-C (cable not included)
Controls
Controls	Multi-directional control knob, power and Bluetooth buttons on top; 10-segment battery indicator	Magic Button for play, pause, skip and one-touch playlists (Spotify, Amazon Music, Apple Music on iOS)
Mounting
Mounting	–	Bungee loop attached
Microphones
Microphones	Built-in microphone for hands-free calls	–
Size
Size	160 × 68 × 76.9 mm (W × H × D)	184 mm tall, 73 mm across
Colours
Colours	Black and Brass, Black and Silver, Cream, Brown, Sage, Midnight Blue, Vintage Black, Pitch Black	–
In the box
In the box	Emberton III, USB-C cable, user manual and safety information (strap with the Brown version only)	BOOM 4 with attached bungee, quick start guide printed inside the box