Short answer: the Brane X. It ranks #4 of 115 large speakers by sound quality, rated 4.6/5, at $549. The JBL Xtreme 3 ranks #18, rated 4.3/5, at $269.95, $279.05 cheaper, not enough of a saving to outweigh the sound-quality gap.
The JBL Xtreme 3 is the lighter pick. A loud, waterproof stereo speaker with deep bass, balanced sound and a power bank for charging devices. At 4 lbs (1.83 kg) it weighs much less than the Brane X at 7.7 lbs (3.5 kg). The tradeoff: Boosted bass.
The Brane X is the deeper-bass option. A portable speaker with extraordinarily deep bass for its size, plus Wi-Fi, AirPlay, Alexa and a low latency aux input. Its bass reaches about 31Hz before falling 10dB, against 53Hz for the JBL Xtreme 3. It supports aptX HD Bluetooth, which the JBL Xtreme 3 lacks. It has an adjustable EQ, which the JBL Xtreme 3 lacks. The tradeoff: The front-facing design has only moderate dispersion, so sound changes noticeably off to the sides or behind it.
Buy the Brane X. It is rated higher for sound quality, and the $279.05 you would save on the JBL Xtreme 3 does not close the gap.
Want more options? Browse the full Portable Bluetooth rankings.
A loud, waterproof stereo speaker with deep bass, balanced sound and a power bank for charging devices.
A portable speaker with extraordinarily deep bass for its size, plus Wi-Fi, AirPlay, Alexa and a low latency aux input.
Prices on this page were last checked October 31, 2026 at 7:11 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 3 | Brane X | |
|---|---|---|
| Price | $269.95 | $549.00 |
| Ranked | #18 of 115 in Large Size Portable Bluetooth Speakers | #4 of 115 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 53Hz | 31Hz |
| Battery Life | 15 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth Latency | 133ms | 100ms |
| Maximum SPL | 105dB (measured by Alan Ross Reviews) | 106dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (PartyBoost up to 100 speakers) | Yes (Brane app, up to 8 speakers) |
| Power Bank | Yes (USB-A + USB-C) | No |
| Power Input | USB-C | AC Power brick |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 4 lbs (1.83 kg) | 7.7 lbs (3.5 kg) |
| App | No | Yes (Brane app) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | aptX HD, aptX, AAC, SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | Yes (5 band) |
| IP Rating | IPX7 | IP57 |
| Bluetooth Version | 4.1 | 5.1 |
| Dimensions | 11.7” x 5.4” x 5.3” (298 x 136 x 134 mm) | 9.3” x 7” x 6.1” (236 x 178 x 155 mm) |
| Drivers | 2x 70mm woofers, 2x 20mm tweeters | 2x 2.5” midrange, 2x 0.75” tweeters + 6.5”x9” subwoofer |
| Frequency Response | 53.5Hz - 20kHz (Manufacturer specified) | 30Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 100W | 200W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | No |
| Aux Latency | - | 295ms default, 33ms with aux pass-through |
| Wi-Fi | - | Yes |
| Voice Assistants | - | Amazon Alexa |
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