These sit in different size classes, so this is not a straight ranking comparison. The JBL Xtreme 5 ranks #2 of 120 large speakers by sound quality at $399.95; the JBL Boombox 4 ranks #20 of 113 boombox speakers by sound quality at $549.95.
The JBL Xtreme 5 is the lighter pick. A large waterproof speaker with deep bass, wide, clean sound at volume and a removable 28 hour battery. At 6.4 lbs (2.9 kg) it weighs much less than the JBL Boombox 4 at 13.2 lbs (5.98 kg). Watch for: High priced.
The JBL Boombox 4 is the louder option. An extremely loud boombox for its size with fully waterproof, dustproof build, a long battery and a flexible app EQ. Alan Ross Reviews measured it at 115dB at full volume, against 110dB for the JBL Xtreme 5. The catch: Pretty overpriced for the category.
Buy the JBL Xtreme 5 at $399.95 if you want a large speaker. Buy the JBL Boombox 4 at $549.95 if you want a boombox speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 7, 2026 at 7:34 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| JBL Xtreme 5 | JBL Boombox 4 | |
|---|---|---|
| Price | $399.95 | $549.95 |
| Ranked | #2 of 120 in Large Size Portable Bluetooth Speakers | #20 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Battery Life | 28 hours (Manufacturer specified) | 28 hours (Manufacturer specified) |
| EQ | Yes (7 band) | Yes (7 band) |
| IP Rating | IP68 | IP68 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 115dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | Yes (USB-C, 5V/3A) | Yes (USB-C, up to 30W) |
| Power Input | USB-C | AC Power cord |
| Removable Battery | Yes | Yes |
| TWS | Yes | Yes |
| Weight | 6.4 lbs (2.9 kg) | 13.2 lbs (5.98 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LC3 | SBC, LC3, AAC |
| Built-in Microphone | No | No |
| Stereo | Partially (1 woofer) | Yes |
| Omnidirectional | No | No |
| Bluetooth Version | 6.0 | 5.4 |
| Dimensions | 13.6” x 6.5” x 6.1” (346 x 165 x 155 mm) | 20.1” x 10.2” x 8.3” (510 x 260 x 210 mm) |
| Drivers | 98x145mm woofer, 2x 20mm tweeters + 2x passive radiators | 2x 123mm woofers + 2x 20mm tweeters with passive radiators |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 1 x 90W RMS Woofer + 2 x 20W RMS Tweeter (AC power mode) 1 x 60W RMS Woofer + 2 x 15W RMS Tweeter (Battery mode) | 210W AC / 200W battery |
| Digital Aux Input | Yes (USB-C) | Yes (USB-C) |
| Strap | Yes (detachable shoulder strap) | No |
| Bass Extension (-10dB) | 43Hz (measured by Alan Ross Reviews) | 41Hz |
| Bluetooth Latency | - | AAC 144ms, SBC 48ms |
| USB Playback | - | No |
| FM Tuner | - | No |
| Microphone Input | - | No |
| MicroSD Playback | - | No |
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