Short answer: the JBL Boombox 3, if you are buying new. The EarFun Uboom X ranks higher than it (#1 vs #27 of 113 boombox speakers, 4.7/5 vs 3.8/5) but is discontinued, so only consider it used; the JBL Boombox 3 is still sold new at $349.95.
Buy the JBL Boombox 3 new; the EarFun Uboom X is no longer sold new, so it only makes sense as a used find.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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
| EarFun Uboom X | JBL Boombox 3 | |
|---|---|---|
| Price | $159.99 Discontinued | $349.95 |
| Ranked | #1 of 113 in Boombox Size Portable Bluetooth Speakers | #27 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (Earfun Audio app) | No |
| Aux Input | Yes | Yes |
| Aux Latency | 16ms | 25ms |
| Bass Extension (-10dB) | ~38Hz | 43Hz |
| Battery Life | 30 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | SBC |
| Built-in Microphone | Yes | No |
| EQ | Yes (App EQ) | No |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | SBC Video mode 48ms, AAC Video mode 128ms, SBC 112ms, AAC 176ms | 100ms |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 110dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (Party Connect mode, up to 50 speakers) | Yes (PartyBoost up to 100 speakers) |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| Power Input | USB-C | AC Power cable |
| TWS | Yes | Yes |
| Weight | 9 lbs (4.1 kg) | 14.8 lbs (6.7 kg) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| USB Playback | No | No |
| FM Tuner | No | No |
| Bluetooth Version | 5.3 | 5.3 |
| Amplifier Power | 80W | 180W AC / 136W battery |
| Dimensions | 15.7” x 5.9” x 8.5” (400 x 150 x 215 mm) | 19” x 10.1” x 7.9” (482 x 257 x 200 mm) |
| Drivers | 2x 102mm (4”) woofers + 2x 20mm tweeters | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | Yes (detachable shoulder strap) | No |
| Microphone Input | - | No |
| MicroSD Playback | - | No |
Watch Them Compared
Videos and reviews that test both speakers side by side.
- Oluv Patreon: Earfun UBoom X vs JBL Boombox 3 - outdoor
- Oluv Patreon: Earfun UBoom X vs JBL Boombox 3 - outdoor test
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