Short answer: the W-King D8 Mini, though neither ranks well in its class. It ranks #135 of 175 medium speakers by sound quality, rated 2.6/5, at $49.99; the Ultimate Ears Megaboom 4 ranks #170, rated 2.1/5, and costs $200, so there is little reason to consider the other one. Both are rated below 3.0/5 among the 175 medium speakers, and the EarFun Uboom L, ranked #2 at $49.79, is a better place to start if sound quality matters.
The W-King D8 Mini is the better-sounding choice. 30W output with switchable indoor/outdoor EQ modes. It keeps a wired aux input, which the Ultimate Ears Megaboom 4 lacks. It plays in stereo from a single unit, unlike the Ultimate Ears Megaboom 4. The tradeoff: Recessed midrange, harsh treble.
Why pick the Ultimate Ears Megaboom 4: IP67 rated, floats, and finally uses USB-C charging. The tradeoff: A lot of distortion at higher volumes.
Buy the W-King D8 Mini. It is rated higher for sound quality than the Ultimate Ears Megaboom 4 and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| W-King D8 Mini | Ultimate Ears Megaboom 4 | |
|---|---|---|
| Price | $49.99 | $200 |
| Ranked | #135 of 175 in Medium Size Portable Bluetooth Speakers | #170 of 175 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 63Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) | 91dB (Manufacturer specified) |
| MicroSD Playback | Yes | - |
| TWS | No | Yes |
| Weight | 2.8 lbs (1260 g) | 2.4 lbs (1.1 kg) |
| IP Rating | IPX6 | IP67 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.1 |
| Dimensions | 9.9” x 3.7” x 3.7” (251 x 94 x 94 mm) | 3.4” x 3.4” x 8.9” (87 x 87 x 225 mm) |
| Drivers | 2x 70mm woofers, 2x 30mm tweeters | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| Built-in Microphone | Yes | No |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| Power Input | USB-C | USB-C |
| Amplifier Power | 30W | - |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| App | No | Yes |
| EQ | Yes (2 modes - Indoor/Outdoor) | Yes (via app) |
| Party Mode | - | Yes (PartyUp up to 50 speakers) |
| Strap | - | Yes (built-in loop) |
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Prices on this page were last checked October 12, 2026 at 4:13 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
W-King D8 Mini: $49.99 W-King $49.99 eBay
Pros: 30W output with switchable indoor/outdoor EQ modes. IPX6 rated with a 5000mAh battery. Measured bass extension of 63Hz (-10dB).
Cons: Recessed midrange, harsh treble. Bass doesn’t go as deep as others.
Full W-King D8 Mini review and specifications →
| Released | Feb 2020 (6 years ago) |
|---|---|
| Amplifier Power | 30W |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 63Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| 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 |
| EQ | Yes (2 modes - Indoor/Outdoor) |
| IP Rating | IPX6 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | No |
| Weight | 2.8 lbs (1260 g) |
- Links
- Reviews, Comparisons and Sound Samples
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Ultimate Ears Megaboom 4: $200 Amazon $200 eBay
Older model: the Ultimate Ears Megaboom 3 (ranked higher, rated 3/5). See every Ultimate Ears Wonderboom, Boom and Megaboom generation.
Same family: the Ultimate Ears Wonderboom 4 (smaller model, ranked higher, rated 2.9/5) and the Ultimate Ears Boom 4 (smaller model, ranked higher, rated 2.9/5).
Pros: IP67 rated, floats, and finally uses USB-C charging. 20 hour battery life. ‘PartyUp’ feature syncs multiple UE speakers together.
Cons: A lot of distortion at higher volumes. Rolled off treble. Not very loud. They really screwed this up
Full Ultimate Ears Megaboom 4 review and specifications →
| Released | Jun 2024 (2 years ago) |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 3.4” x 3.4” x 8.9” (87 x 87 x 225 mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 91dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 2.4 lbs (1.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: Ultimate Ears MegaBoom 4 vs Sony ULT Field 1 😧 $200 vs $128 Cylinder Bluetooth Speaker Matchup More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Ultimate Ears MegaBoom 4 vs W-King D320 🔋Does Paying More Get You Less? 😧
- Smart Home Sounds: UE Everboom Review PLUS All-New Wonderboom 4, Boom 4 & Megaboom 4 More from Smart Home Sounds →
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