Short answer: the W-King D320. It ranks #44 of 134 medium speakers at $52.92; the Ultimate Ears Megaboom 4 ranks #130 and costs $200, so there is not much of a tradeoff to weigh.
What the Ultimate Ears Megaboom 4 gets right: IP67 rated, floats, and finally uses USB-C charging. The catch: A lot of distortion at higher volumes.
On the W-King D320 side: 40W output power, IP67 waterproof, 24-hour battery life, customizable EQ app with 6 preset modes, Bluetooth 5.3, AUX and MicroSD support. The catch: Not stereo.
Buy the Ultimate Ears Megaboom 4 if the price matters more than the ranking. Buy the W-King D320 if the ranking matters more than the price.
Specifications Side By Side
| Ultimate Ears Megaboom 4 | W-King D320 | |
|---|---|---|
| Price | $200 | $52.92 |
| Ranked | #130 of 134 in Medium Size Portable Bluetooth Speakers | #44 of 134 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Battery Life | 20 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes | - |
| Stereo | No | No |
| Bluetooth Version | 5.1 | 5.3 |
| Dimensions | 3.43" x 3.43" x 8.86" (87 x 87 x 225 mm) | 3.3" diameter x 8.4" H (83 x 214mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators | 52mm x 91mm woofer, 2x 25mm tweeters + 2x passive radiators |
| TWS | Yes | No |
| EQ | Yes (via app) | Yes |
| Power Input | USB-C | USB-C |
| Built in Microphone | No | Yes |
| Weight | 2.4 lbs / 1.1 kg | 3.1 lbs / 1.4 kg |
| Max Volume | 91dB | - |
| Aux Input | - | Yes |
| MicroSD Playback | - | Yes |
| Frequency Response | - | 100Hz - 18kHz (Manufacturer specified) |
| Output Power | - | 40W |
The Two Speakers In Full
Ultimate Ears Megaboom 4: $200 Amazon
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
| App | Yes |
|---|---|
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Version | 5.1 |
| Built in Microphone | No |
| Dimensions | 3.43" x 3.43" x 8.86" (87 x 87 x 225 mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Max Volume | 91dB |
| Party Mode | Yes |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 2.4 lbs / 1.1 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Links
W-King D320: $52.92 Aliexpress Amazon
Pros: 40W output power, IP67 waterproof, 24-hour battery life, customizable EQ app with 6 preset modes, Bluetooth 5.3, AUX and MicroSD support, dual tweeters with passive radiators, USB-C charging
Cons: Not stereo. Warm tuning. Lacking some detail. Rolled off treble
| App | Yes |
|---|---|
| Aux Input | Yes |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Dimensions | 3.3" diameter x 8.4" H (83 x 214mm) |
| Drivers | 52mm x 91mm woofer, 2x 25mm tweeters + 2x passive radiators |
| EQ | Yes |
| Frequency Response | 100Hz - 18kHz (Manufacturer specified) |
| IP Rating | IP67 |
| MicroSD Playback | Yes |
| Output Power | 40W |
| Power Input | USB-C |
| Stereo | No |
| TWS | No |
| Weight | 3.1 lbs / 1.4 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.