JBL Go 4 vs Marshall Willen II

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

Better figure, where one is clearly better

Go 4 compared with Willen II
JBLGo 4MarshallWillen II
Overview
ReleasedJune 2024August 2024
Sound
TypePortable speakerPortable speaker
Channels–Mono
Dolby AtmosNoNo
Drivers45 mm driverOne 2-inch 10 W full-range dynamic driver and two passive radiators, in a sealed cabinet
Amplifiers4.2 W RMS38 W class D
Frequency response90 Hz – 20 kHz; signal-to-noise ratio over 85 dB75 Hz – 20 kHz; up to 88 dB SPL at 1 m
Room tuningEQ presets and a customisable EQ (highs, mids and lows) in the JBL Portable app–
Connections
Wi-FiNoNo
BluetoothYesYes
AirPlayNoNo
Voice assistantsNoneNone
BluetoothBluetooth 5.3 with LE Audio; A2DP 1.4, AVRCP 1.6; multipointBluetooth 5.3, LE Audio-ready; up to 100 m range in free field; connects to two devices at once and remembers eight
PortsUSB-C for chargingUSB-C for charging (5 V, 1.5 A)
Multi-roomAuracast stereo pairing of two Go 4s, and multi-speaker playback with other Auracast JBL speakers–
AppJBL Portable appMarshall Bluetooth app (iOS and Android)
Design
Battery life (maker's claim)Up to 7 hoursUp to 17 hours
Water and dust resistanceIP67IP67
Weight0.19 kg (better)0.36 kg
Battery life detailUp to 7 hours, plus 2 hours with Playtime Boost; 3.23 Wh (3.8 V, 850 mAh) lithium-ion polymer battery; 3 hours to charge at 5 V / 1 AOver 17 hours; 2.5 hours to charge; 20 minutes of charging gives 5.5 hours
Controls–Multi-directional control knob, power and Bluetooth buttons; battery indicator
Microphones–Built-in microphone for hands-free calls
MountingCarry strapRemovable fastening strap
Size94.3 × 75.7 × 42.2 mm (W × H × D)100.5 × 100.5 × 43.4 mm (W × H × D)
ColoursBlack, Black and Orange, Blue, Pink, Purple, Red, Sand, Squad (JBL Singapore)Black and Brass, Cream
In the boxGo 4, USB-C cable, quick start guide, warranty card and safety sheetWillen II, USB-C cable, user manual and legal and safety information

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