Quick verdict from our JBL Boombox 3 review: the JBL Boombox 3 is still a brilliant big speaker: deep bass, huge volume, up to 24 hours of battery and IP67 waterproofing. But its successor, the Boombox 4, is lighter, lasts longer (28 hours, 34 with Playtime Boost), is IP68 and has a replaceable battery. Buy the Boombox 3 only at a clear discount; otherwise the Boombox 4 is the better long-term buy.
How we put this review together: written by Md. Enamul Arafath for TopSmartGear, using JBL’s official Boombox 3 specs, independent expert reviews and verified owner feedback. This is a research-based review, not a hands-on test. Read how we review.
JBL Boombox 3 review: specs at a glance
| Feature | JBL Boombox 3 | JBL Boombox 4 |
|---|---|---|
| Released | 2022 | 2025 |
| Battery | Up to 24 hours | Up to 28 hours, 34 with Playtime Boost |
| Replaceable battery | No | Yes |
| Waterproofing | IP67 | IP68 |
| Charge time | About 6.5 hours | About 3 hours |
| Multi-speaker | PartyBoost | Auracast |
Sound
The Boombox 3 uses a dedicated subwoofer plus midrange drivers and tweeters, and its bass is still among the deepest of any portable speaker. It’s more than loud enough for a backyard or beach. The Boombox 4 is tuned to be louder and punchier, with AI Sound Boost to stay clean at high volume, but the Boombox 3 holds up well.
Battery and build
24 hours is plenty for a day out, and the Boombox 3 doubles as a power bank. It’s heavy (around 6.7 kg) and slow to recharge. The Boombox 4 is lighter, charges in about half the time, and its battery can be swapped when it wears out.
Pros and cons of the Boombox 3
- Good: huge bass and volume, 24-hour battery, IP67, power bank.
- Watch out: heavy, slow to charge, no Auracast, battery not replaceable, newer model now available.
Which should you buy?
- Boombox 3 if you find it well below the Boombox 4’s price.
- Boombox 4 for longer battery, faster charging, IP68 and a replaceable battery.
- Something smaller? The JBL Xtreme 4 gives you stereo and a replaceable battery in a more portable size.
Frequently asked questions
Can the Boombox 3 pair with the Boombox 4?
Not directly: the Boombox 3 uses PartyBoost and the Boombox 4 uses Auracast, which aren’t compatible.
Is there a Wi-Fi version?
Yes, JBL sold a Boombox 3 Wi-Fi with AirPlay and Chromecast, but it’s harder to find than the standard model.
Final verdict
The Boombox 3 is still great on a deal; the Boombox 4 is the better buy at similar prices. Watch our deals page for Black Friday prices, and see the PartyBox 110 if you want lights and a mic input.
