JBL Go 4 Bluetooth Speaker Review: Compact Size, Bigger Sound, and Smarter Connectivity

Read our detailed JBL Go 4 Bluetooth Speaker review, exploring its powerful JBL Pro Sound, waterproof IP67 build, 7-hour battery life, Auracast pairing, and value at just $39.95.

Review
3. Dec 2025
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JBL Go 4 Bluetooth Speaker Review: Compact Size, Bigger Sound, and Smarter Connectivity















The JBL Go 4 continues JBL’s legacy of creating ultra-portable speakers that deliver surprisingly big sound despite their small footprint. Designed for everyday use—from study sessions and desktop listening to outdoor mini-adventures—the Go 4 is built to be lightweight, durable, and impressively loud for its size. With punchier bass, improved playtime, enhanced waterproofing, and new Auracast multi-speaker connectivity, the Go 4 is a significant upgrade over previous models. Whether you’re on a walk, heading to the beach, or simply want a tiny speaker with reliable JBL Pro Sound, this compact powerhouse fits the role perfectly.

JBL Go 4 Bluetooth Speaker Features

Ultra-Portable JBL Pro Sound With Punchier Bass

Despite its compact frame, the Go 4 delivers unexpectedly powerful audio. The speaker produces more defined vocals, richer lows, and better clarity than the Go 3. JBL’s tuning ensures the sound remains bold and full even at higher volumes, making it suitable for both indoor and outdoor listening.

Up to 7 Hours of Playtime + Playtime Boost

The built-in 700 mAh battery delivers up to 7 hours of continuous playback. For users needing a little extra time, Playtime Boost adds approximately 2 more hours by optimizing performance and reducing bass output. It’s ideal for commuting, casual travel, or small gatherings where charging may not be convenient.

IP67 Waterproof and Dustproof Durability

The JBL Go 4 comes with an IP67 rating, making it resistant to dust, sand, splashes, and complete water immersion. Whether you're at a poolside hangout, beach picnic, or hiking trail, the speaker is built to withstand tough outdoor conditions.

Auracast Multi-Speaker Connection

A major upgrade is Auracast support—a feature that allows two JBL Go 4 speakers to pair together for true stereo sound. Users can also link multiple Auracast-enabled JBL speakers to amplify the sound across a room or outdoor environment, creating a broader listening experience.

Eco-Friendly Design

The Go 4 incorporates post-consumer recycled plastic and fabric into its construction. JBL also uses environmentally friendly packaging like FSC-certified paper and soy-ink printing, making the product more sustainable without compromising quality.

Compact Build With Loop Mount

At just 0.19 kg, the speaker is lightweight and easy to carry. A built-in loop mount allows users to hook it onto backpacks, belt loops, or handlebars for hands-free portability.

JBL Go 4 Bluetooth Speaker Price in the US

The JBL Go 4 is priced at $39.95 in the United States, with a limited-time offer available on Amazon US. Considering its enhanced audio performance, waterproof rating, and Auracast connectivity, it remains one of the best-value mini speakers in its category.

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JBL Go 4 Bluetooth Speaker Review

The JBL Go 4 stands out as a compact speaker that outperforms expectations. Its improved driver delivers louder and punchier audio, especially in the bass department—something rarely seen in budget mini speakers of this size. The clarity remains consistent even at high volumes, and spoken content like podcasts and dialogue-heavy videos sound crisp and clean.

Battery life is solid for such a small device, and the Playtime Boost feature is practical when you need a little extra runtime. The IP67 protection makes it a dependable companion for outdoor use, ensuring durability against water, dust, and accidental splashes.

Auracast support elevates the experience dramatically, allowing users to create a stereo setup or multi-speaker system effortlessly. This feature alone makes the Go 4 more versatile than many competing portable speakers.

The only limitations are the absence of a microphone for hands-free calls and the relatively modest battery capacity, which is expected given its tiny size. Still, for everyday listening, travel convenience, and spontaneous outdoor fun, the Go 4 delivers excellent value.

JBL Go 4 Bluetooth Speaker Pros and Cons

Pros

  • Punchy bass and clear sound for its compact size
  • IP67 waterproof and dustproof protection
  • Auracast multi-speaker connectivity
  • Lightweight, portable, and loop-mount friendly
  • Eco-friendly materials and packaging
  • 7+ hours of battery with Playtime Boost

Cons

  • No built-in microphone for calls
  • Limited playtime compared to larger speakers
  • Small soundstage due to compact size before stereo pairing

Should You Buy JBL Go 4 Bluetooth Speaker?

If you want a tiny speaker that delivers surprisingly loud and clear sound, the JBL Go 4 is an excellent choice. It's perfect for students, travelers, outdoor walkers, desk users, and anyone who needs a highly portable speaker without sacrificing audio quality. Auracast support makes it even more appealing for those who might consider expanding their setup later.

Users who want deeper bass, longer battery life, or room-filling audio may prefer larger JBL models, but for its size and price, the Go 4 remains a standout option.

Final Verdict

The JBL Go 4 is one of the best ultra-portable Bluetooth speakers in its class, offering punchy sound, rugged durability, and smart features in a compact form. With IP67 protection, 7-hour playtime, eco-friendly materials, and the impressive addition of Auracast, it delivers terrific everyday value at just $39.95. Whether you're on the move, relaxing outdoors, or simply want a small yet powerful speaker for daily use, the JBL Go 4 proves that great sound can come in an incredibly small package.

FAQs

Q1: How long does the JBL Go 4 battery last?

The JBL Go 4 offers up to 7 hours of playtime, and with Playtime Boost enabled, users can extend usage by up to 2 additional hours.

Q2: Is the JBL Go 4 waterproof?

Yes, the speaker comes with an IP67 waterproof and dustproof rating, making it ideal for outdoor use, beaches, and poolside listening.

Q3: Can the JBL Go 4 pair with other speakers?

The speaker supports Auracast, allowing users to pair two JBL Go 4 units for stereo or connect multiple Auracast-enabled speakers for bigger sound.

Q4: What is the price of the JBL Go 4 in the US?

The JBL Go 4 is priced at $39.95 in the US, with occasional limited-time discounts available on Amazon.

Q5: Is the JBL Go 4 good for travel and outdoor activities?

Yes, its ultra-portable design, lightweight build, built-in loop, and rugged waterproof construction make it perfect for travel and outdoor use.

The information in this article is for general reference only. Product details, pricing, and availability may change over time, and we can’t guarantee everything is 100% accurate. Some content may be created with the help of AI tools like ChatGPT. Please check the official website or seller before making a purchase. Some articles may contain affiliate links, and we may earn a small commission at no extra cost to you.

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Image Disclaimer: Product images are used for reference and review purposes only. All trademarks, logos, and images belong to their respective brands or Amazon sellers.

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Rishabh Sinha
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