Short answer: the Yeahbox Sonic Boom Max 3. It ranks #59 of 112 boombox speakers by sound quality, rated 3.2/5, at $228.99. The W-King X10 ranks #93, rated 2.3/5, at $80, $148.99 cheaper, a saving that is not big enough to make up the sound-quality gap.
The Sonic Boom Max 3 is the bigger three-way party box. Five drivers on 200W give powerful bass and strong output, with a 111Wh battery, USB-C fast charging, an app EQ and aux, USB and microSD playback. It is less clear than stronger boomboxes, and at 16.8 lbs (7.64 kg) it is a lot heavier.
The W-King X10 is the cheap, long-running option. It claims 42 hours of battery, doubles as a power bank, and Alan Ross measured 106dB. Its treble is heavily rolled off, its bass stops around 52Hz (-10dB), and its EQ has only Indoor and Outdoor modes.
Buy the Yeahbox Sonic Boom Max 3. It is rated higher for sound quality, and the $148.99 you would save on the W-King X10 does not close the gap.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A cheap, waterproof stereo boombox with a very long battery, loud output and a power bank for charging your phone.
A large party speaker with powerful bass, a big fast charging battery and app EQ for outdoor parties.
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
| W-King X10 | Yeahbox Sonic Boom Max 3 | |
|---|---|---|
| Price | $80 | $228.99 |
| Ranked | #93 of 112 in Boombox Size Portable Bluetooth Speakers | #59 of 112 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 52Hz | - |
| Battery Life | 42 hours (Manufacturer specified) | 111Wh (14.8V/7,500mAh) (Manufacturer specified) |
| IP Rating | IPX6 | IPX6 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | Yes |
| Power Bank | Yes (USB-A) | - |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 6.5 lbs (2.95 kg) | 16.8 lbs (7.64 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| App | No | Yes |
| EQ | Yes (2 modes - Indoor/Outdoor) | Yes |
| Party Mode | No | - |
| USB Playback | Yes | Yes |
| Built-in Microphone | Yes | - |
| Power Input | USB-C | USB-C |
| FM Tuner | No | - |
| Bluetooth Version | 5.0 | 5.3 |
| Amplifier Power | 70W RMS (120W peak) | 200W RMS / 300W Peak |
| Dimensions | 12.4” x 5.5” x 5.3” (315 x 140 x 135 mm) | 20.7” x 8.3” x 10.6” (525 x 210 x 268 mm) |
| Drivers | 2x 3.66” (93mm) subwoofers + 2x 1.2” (31mm) neodymium tweeters + 3x passive radiators | 189x114mm woofer, 2x 89mm midrange, 2x 38mm tweeters |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | No |
| Lights | - | Yes |
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