JBL Go 4 - Ultra-Portable, Waterproof and Dustproof Bluetooth Speaker, Big JBL Pro Sound with Punchy bass, 7-Hour Built-in…
JBL
Best for
Best for travel
Amazon rating
Amazon aggregate — one input among many in the Verdict Score
Current price
$39.99
Updated May 13, 2026 · 1 min read
Synthesis sources
Methodology →The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
The JBL Go 4 is the speaker you actually put in your carry-on. RTINGS describes it as a 'pocket-sized speaker' with IP67 dust and water protection and a floating design — meaning it survives a drop in the pool. Stereoguide highlights the addition of an EQ app and Auracast support, which are rare features in this size class.
What reviewers liked
- RTINGS-verified IP67 dust/waterproof with floating design
- One of the smallest, lightest options here — fits in a jacket pocket
- App-based EQ and Auracast multi-speaker pairing — rare at this price
- Strong Amazon track record: 4.7/5 across 16,000+ verified reviews
Where it falls short
- Only 7 hours of battery life — shortest in this roundup
- Small driver fundamentally limits bass and max volume
- No speakerphone or microphone
- Not meaningfully louder than a smartphone in open outdoor spaces
The JBL Go 4 is the speaker you actually put in your carry-on. RTINGS describes it as a 'pocket-sized speaker' with IP67 dust and water protection and a floating design — meaning it survives a drop in the pool. Stereoguide highlights the addition of an EQ app and Auracast support, which are rare features in this size class. The Product Lab's 2026 walkthrough (139k views) confirms it's a real upgrade over the Go 3, with cleaner output and a more premium feel.
At ~$40, it's also one of the few sub-$50 speakers in this roundup that high-trust testers actively recommend. Where the Soundcore 2 has been criticized by RTINGS for being too quiet and lacking sound customization, the Go 4 fixes both problems via the JBL Portable app. The r/JBL community thread sums it up: 'decently loud for its size and sounds fine, plus it's a premium feeling design.'
The limits are obvious. Seven hours of battery is short, even by mini-speaker standards. Don't expect deep bass — physics doesn't allow it at this size. And there's no built-in mic or smart features. But as a travel speaker, a desk speaker, or a gift-priced upgrade over a phone speaker, the Go 4 is the pick.
- Feature 1
- Ultra-portable JBL Pro Sound with punchier bass: Don't let its little size fool you. The JBL Go 4 packs a serious musical punch. Your friends won't believe how much great JBL Pro Sound comes out of such a small speaker.
- Feature 2
- Up to 7 hours of playtime plus 2 hours with Playtime Boost: Don't sweat the small stuff like charging your battery. JBL Go 4 gives you up to 7 hours of playtime on a single charge. Tap Playtime Boost to add up to 2 more hours to your battery life.
- Feature 3
- Waterproof and dustproof: The JBL Go 4's IP67 waterproof and dustproof rating ensures this portable speaker can handle almost any environment, from a poolside party to a seaside picnic.
- Feature 4
- Multi-speaker connection by Auracast: Want even bigger JBL Pro Sound? Pair two Go4s for stereo sound, or wirelessly connect multiple JBL Auracast-enabled speakers using Auracast for even bigger sound.
- Feature 5
- Made in part with recycled materials: The JBL Go 4 incorporates post-consumer recycled plastic and fabric for the speaker grille. It's also packaged in FSC-certified paper printed with soy ink.
“JBL Go 4 vs JBL Go 3: Definitely An Upgrade” · New Stuff TV 2
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