Short answer: the JBL Xtreme 3 is the larger, higher-performing speaker, the Soundcore Boom 3i the value play. A full size class up, the Xtreme 3 has better treble and deeper bass than the Xtreme 2 and is more balanced than the Xtreme 4. The Boom 3i echoes the JBL Charge 5’s warm, bass-forward sound at better value, just update the firmware to avoid early bass distortion.
Buy the JBL Xtreme 3 at $269.95 if you want a large speaker. Buy the Soundcore Boom 3i at $118.99 if you want a medium speaker instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| JBL Xtreme 3 | Soundcore Boom 3i | |
|---|---|---|
| Price | $269.95 | $118.99 |
| Ranked | #18 of 120 in Large Size Portable Bluetooth Speakers | #31 of 179 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 53Hz | 56Hz |
| Battery Life | 15 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Bluetooth Latency | 133ms | - |
| Maximum SPL | 105dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (PartyBoost up to 100 speakers) | No |
| Power Bank | Yes (USB-A + USB-C) | - |
| Power Input | USB-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 4 lbs (1.83 kg) | 1.7 lbs (783 g) |
| App | No | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC |
| Built-in Microphone | Yes | Yes |
| EQ | No | Yes |
| IP Rating | IPX7 | IP68 |
| Bluetooth Version | 4.1 | 5.3 |
| Dimensions | 11.7” x 5.4” x 5.3” (298 x 136 x 134 mm) | 8.3” x 3.3” x 3.1” (210 x 85 x 78.5 mm) |
| Drivers | 2x 70mm woofers, 2x 20mm tweeters | 94mm woofer + tweeter |
| Frequency Response | 53.5Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 100W | 50W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | Yes (detachable strap) |
| Lights | - | Yes |
Related Speaker Comparisons
How JBL Xtreme 3 compares with other leading options: