Short answer: the Ultimate Ears Wonderboom 4 on measured sound quality, the W-King D8 Mini on price. The Ultimate Ears Wonderboom 4 ranks #84 of 136 medium speakers at $59.99. The W-King D8 Mini ranks #106 at $38.93, $21.06 cheaper.
What the Ultimate Ears Wonderboom 4 offers: Small size. Watch for: Bass isn’t as deep as the top-ranked speakers and is a little thuddy. Not much improvement over the previous Ultimate Ears Wonderboom 3 besides the USB-C charging port.
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 Wonderboom 4 if sound quality is the priority over the price, or the W-King D8 Mini if the price is the priority over sound quality.
If sound quality matters at all to you, skip the W-King D8 Mini. It ranks near the bottom of the 136 medium speakers, so look higher up the list instead.
There is a real battery-life gap here: the W-King D8 Mini is rated for 24 hours, the Ultimate Ears Wonderboom 4 only 14 hours.
Specifications Side By Side
| Ultimate Ears Wonderboom 4 | W-King D8 Mini | |
|---|---|---|
| Price | $59.99 | $38.93 |
| Ranked | #84 of 136 in Medium Size Portable Bluetooth Speakers | #106 of 136 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | - | 63Hz |
| Battery Life | 14 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth Latency | - | - |
| Max Volume | 87dB | 100dB |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| Weight | 0.9 lbs / 420 g | 2.8 lbs / 1260 g |
| IP Rating | IP67 | IPX6 |
| Bluetooth Version | 5.2 | 5.0 |
| Dimensions | 4.1" x 3.8" (104 x 95.3 mm) | 9.9" x 3.7" x 3.7" (251 x 94 x 94 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) | 2x 70mm woofers, 2x 30mm tweeters |
| TWS | Yes | No |
| Party Mode | No | - |
| App | No | - |
| EQ | No | - |
| Built in Microphone | No | Yes |
| Power Bank | No | - |
| Aux Input | No | Yes |
| Digital Aux Input | No | No |
| MicroSD Playback | - | Yes |
| Output Power | - | 30W |
Related Speaker Comparisons
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- Ultimate Ears Wonderboom 3 vs Zealot S61
- Soundcore Flare 2 vs Zealot S61
- Ultimate Ears Wonderboom 3 vs Tribit Stormbox Mini
- Soundcore Boost “upgraded” 2021 vs W-King D8 Mini
- Soundcore Boost “original model” pre-2021 vs W-King D8 Mini
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 Wonderboom 4: $59.99 Amazon eBay
Pros: Small size.
Cons: Bass isn’t as deep as the top-ranked speakers and is a little thuddy. Not much improvement over the previous Ultimate Ears Wonderboom 3 besides the USB-C charging port.
Full Ultimate Ears Wonderboom 4 review and specifications →
| App | No |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth Latency | |
| Bluetooth Version | 5.2 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4.1" x 3.8" (104 x 95.3 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| EQ | No |
| IP Rating | IP67 |
| Max Volume | 87dB |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 0.9 lbs / 420 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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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+
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