Short answer: the Ultimate Ears Megaboom 3 if sound quality matters most, the W-King D8 Mini if price matters most. The Ultimate Ears Megaboom 3 ranks #83 of 136 medium speakers at $163. The W-King D8 Mini ranks #106 at $38.93, $124.07 cheaper.
What the Ultimate Ears Megaboom 3 offers: IP67 rated, floats, and survives drops from up to 1 meter. 20 hour battery life - about double most speakers this size. Watch for: Not stereo, barely any bass. You can tell from the micro USB that they are just feeding you the same crap hardware over and over, this is inexcusable for a product released in 2018. Not technically a 360 speaker, only front and rear.
What the W-King D8 Mini offers: 30W output with switchable indoor/outdoor EQ modes. IPX6 rated with a 5000mAh battery. Watch for: Recessed midrange, harsh treble. Bass doesn’t go as deep as others.
Buy the Ultimate Ears Megaboom 3 if sound quality matters more than the price. Buy the W-King D8 Mini if the price matters more than sound quality.
Skip the W-King D8 Mini if sound quality matters to you. It ranks near the bottom of the 136 medium speakers.
Specifications Side By Side
| Ultimate Ears Megaboom 3 | W-King D8 Mini | |
|---|---|---|
| Price | $163 | $38.93 |
| Ranked | #83 of 136 in Medium Size Portable Bluetooth Speakers | #106 of 136 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 70Hz | 63Hz |
| Battery Life | 20 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Max Volume | 98dB | 100dB |
| Party Mode | Yes (PartyUp up to 50 speakers) | - |
| Power Input | Micro USB | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| Weight | 2 lbs / 925 g | 2.8 lbs / 1260 g |
| Bluetooth Version | 4.2 | 5.0 |
| Drivers | 2x 50mm fullrange | 2x 70mm woofers, 2x 30mm tweeters |
| Dimensions | 3.4" x 8.9" x 3.4" (87 x 225 x 87 mm) | 9.9" x 3.7" x 3.7" (251 x 94 x 94 mm) |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX7 | IPX6 |
| Digital Aux Input | No | No |
| Aux Input | - | Yes |
| MicroSD Playback | - | Yes |
| TWS | - | No |
| Built in Microphone | - | Yes |
| Output Power | - | 30W |
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Prices on this page were last checked August 27, 2026 at 10:09 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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The Two Speakers In Full
Ultimate Ears Megaboom 3: $163 Amazon eBay
Pros: IP67 rated, floats, and survives drops from up to 1 meter. 20 hour battery life - about double most speakers this size.
Cons: Not stereo, barely any bass. You can tell from the micro USB that they are just feeding you the same crap hardware over and over, this is inexcusable for a product released in 2018. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Megaboom 3 review and specifications →
| Bass Extension (-10dB) | 70Hz |
|---|---|
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 3.4" x 8.9" x 3.4" (87 x 225 x 87 mm) |
| Drivers | 2x 50mm fullrange |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Max Volume | 98dB |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | Micro USB |
| Stereo | No |
| Weight | 2 lbs / 925 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- Ultimate Ears Megaboom 3 vs Soundcore 2
- Ultimate Ears Megaboom 3 vs Ultimate Ears Wonderboom 2
- Ultimate Ears Megaboom 3 vs Tribit Stormbox 2
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W-King D8 Mini: $38.93 Aliexpress eBay
Pros: 30W output with switchable indoor/outdoor EQ modes. IPX6 rated with a 5000mAh battery.
Cons: Recessed midrange, harsh treble. Bass doesn’t go as deep as others.
Full W-King D8 Mini review and specifications →
| Aux Input | Yes |
|---|---|
| Bass Extension (-10dB) | 63Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Version | 5.0 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.9" x 3.7" x 3.7" (251 x 94 x 94 mm) |
| Drivers | 2x 70mm woofers, 2x 30mm tweeters |
| IP Rating | IPX6 |
| Max Volume | 100dB |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Output Power | 30W |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | No |
| Weight | 2.8 lbs / 1260 g |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- W-King D8 Mini vs Soundcore Flare 2
- W-King D8 Mini vs Sony SRS-XB30
- W-King D8 Mini vs Tribit Stormbox Mini+
- W-King D8 Mini vs Sony SRS-XE200
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