Bose SoundLink Flex (2nd Gen) vs Marshall Emberton III

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

SoundLink Flex (2nd Gen) compared with Emberton III
BoseSoundLink Flex (2nd Gen)MarshallEmberton III
Overview
ReleasedSeptember 2024August 2024
Sound
TypePortable speakerPortable speaker
Channels–Stereo
Dolby AtmosNoNo
Drivers–Two 2-inch 10 W full-range dynamic drivers and two passive radiators, in a sealed cabinet; True Stereophonic 360° sound
Amplifiers–2 × 38 W class D
Frequency response–65 Hz – 20 kHz; up to 90 dB SPL at 1 m
Room tuningPositionIQ senses the speaker's orientation and adjusts the sound; adjustable EQ in the Bose app–
Connections
Wi-FiNoNo
BluetoothYesYes
AirPlayNoNo
Voice assistantsNoneNone
BluetoothBluetooth 5.3 with a 9 m range; multipoint connection to two devices; aptX Adaptive with Snapdragon Sound devicesBluetooth 5.3, LE Audio-ready; up to 100 m range in free field; connects to two devices at once and remembers eight
PortsUSB-C (charging)USB-C for charging (5 V, 3 A)
StreamingBluetooth; the shortcut button can start Spotify Tap–
Multi-roomStereo Mode with a second Flex (2nd Gen), or Party Mode with another current SoundLink speaker (Micro 2nd Gen, Plus or Max); SimpleSync with Bose smart soundbars and speakers–
AppBose appMarshall Bluetooth app (iOS and Android), with battery preservation settings
Design
Battery life (maker's claim)Up to 12 hoursUp to 32 hours
Water and dust resistanceIP67IP67
Weight0.59 kg (better)0.67 kg
Battery life detailUp to 12 hours; up to 3 hours at maximum volume; up to 4 hours to charge; no power adapter includedOver 32 hours; 2 hours to charge; 20 minutes of charging gives 6 hours
ControlsButtons on top, including a programmable shortcut button (linking two speakers by default; Spotify Tap or the phone's voice assistant)Multi-directional control knob, power and Bluetooth buttons on top; 10-segment battery indicator
MicrophonesBuilt-in microphone for speakerphone callsBuilt-in microphone for hands-free calls
MountingNylon utility loop for carrying or clipping to a bag–
Size2.06 × 7.93 × 3.56 in (H × W × D); 1.291 lb160 × 68 × 76.9 mm (W × H × D)
ColoursBlack, Blue Dusk, Alpine Sage and Sandstone, plus limited editions; Bose UK currently sells Dewdrop MintBlack and Brass, Black and Silver, Cream, Brown, Sage, Midnight Blue, Vintage Black, Pitch Black
In the boxSoundLink Flex (2nd Gen), USB-C to USB-A cable, safety sheetEmberton III, USB-C cable, user manual and safety information (strap with the Brown version only)

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