What do reviews say about battery?

Rated 7 hours; TechRadar got nearly 10 hours at 50% volume, Tom's Guide matched the claim.

What do reviews say about waterproof?

IP67 rated, so it is dust-tight and can survive a dunk in water.

What do reviews say about stereo?

Two Go 4s can pair for stereo via Auracast, but What Hi-Fi? noticed sync issues.

Phones & Audio · Speakers · 915 reviews · 5 sources

JBL Go 4

Best for: pocket-size musicBudget

A tiny, rugged, cheap speaker that sounds bigger than it looks. Bass and battery are limited by its size.

Tracking since Sep 2026

Buy if

You want a speaker for a bag or shower
You are on a tight budget

Skip if

You want deep bass
You need more than 7 hours

How it scores

Value8.0

Sound7.9

Battery6.4

Price

$49.95

You pay for: Among the cheapest proper speakers

Reviewed Sep 2026 · 0 new reviews since · score unchanged

What people love

Most mentioned by reviewers

Sound qualityClear and loud for its size

PortabilityFits in a pocket or bag

What people complain about

Most mentioned by reviewers

Light on bassSmall driver limits low end

Short battery7 hours is modest

No microphoneCannot take calls

Reviewers disagree on

Sound is cohesive and livelyNot much punch in the bass

Alternatives

Same price · $49.95

Ask about this product

Sources

Best Buy
What Hi-Fi?
TechRadar
Tom's Guide
SoundGuys
Reviewed Sep 2026

AI summary of public reviews, not a recommendation.