These sit in different size classes, so this is not a straight ranking comparison. The JBL Xtreme 3 ranks #18 of 120 large speakers by sound quality at $269.95; the Turtlebox Gen 3 ranks #105 of 113 boombox speakers by sound quality at $430.
The JBL Xtreme 3 is the deeper-bass, lighter pick. A loud, waterproof stereo speaker with deep bass, balanced sound and a power bank for charging devices. Its bass reaches about 53Hz before falling 10dB, against 65Hz for the Turtlebox Gen 3. At 4 lbs (1.83 kg) it weighs much less than the Turtlebox Gen 3 at 10 lbs (4.54 kg). The catch: Boosted bass.
The Turtlebox Gen 3 is the longer-running choice. A loud, waterproof and crushproof outdoor speaker with a big battery, device charging and party mode linking. It is rated for 25 hours of battery against 15 for the JBL Xtreme 3. Watch for: Sounds basically identical to the original and the Turtlebox Gen 2: each generation mainly added features, not sound quality.
Buy the JBL Xtreme 3 ($269.95) for a large speaker; the Turtlebox Gen 3 ($430) suits a boombox speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 11, 2026 at 3:26 AM 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 | Turtlebox Gen 3 | |
|---|---|---|
| Price | $269.95 | $430.00 |
| Ranked | #18 of 120 in Large Size Portable Bluetooth Speakers | #105 of 113 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 53Hz | ~65Hz |
| Battery Life | 15 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| Bluetooth Latency | 133ms | - |
| Maximum SPL | 105dB (measured by Alan Ross Reviews) | 102dB (measured by Williston Audio Labs) |
| Party Mode | Yes (PartyBoost up to 100 speakers) | Yes (Turtlebox Party Mode) |
| Power Bank | Yes (USB-A + USB-C) | Yes (USB-C) |
| Power Input | USB-C | DC Barrel Connector (15V/3A) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 4 lbs (1.83 kg) | 10 lbs (4.54 kg) |
| App | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | No |
| EQ | No | No |
| IP Rating | IPX7 | IP67 |
| Bluetooth Version | 4.1 | 5.4 |
| Dimensions | 11.7” x 5.4” x 5.3” (298 x 136 x 134 mm) | 12” x 7” x 8.7” (305 x 178 x 222 mm) |
| Drivers | 2x 70mm woofers, 2x 20mm tweeters | 1x 6x9” (152x228mm) woofer + 1x 1” (25mm) tweeter |
| Frequency Response | 53.5Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 100W | 50W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | No |
| MicroSD Playback | - | Yes |
| USB Playback | - | No |
| Microphone Input | - | Yes (3.5mm) |
| Battery Capacity | - | 85Wh |
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