Short answer: the W-King D320. It ranks #51 of 175 medium speakers by sound quality, rated 3.6/5, at $52.92; the Ultimate Ears Wonderboom 2 ranks #111, rated 2.9/5, and costs $80, so there is not much of a tradeoff to weigh.
The W-King D320 is the better-sounding, longer-running choice. A 3.1 lbs (1.4 kg), IP67-rated travel speaker with claimed 40W output, USB-C charging, aux and microSD playback, speakerphone capability and an app with adjustable EQ. It is rated for 24 hours of battery against 12 for the Ultimate Ears Wonderboom 2. It keeps a wired aux input, which the Ultimate Ears Wonderboom 2 lacks. It has an adjustable EQ, which the Ultimate Ears Wonderboom 2 lacks. The tradeoff: A single D320 is not stereo, and its warm balance trades away some detail and upper-treble air.
The Ultimate Ears Wonderboom 2 is the lighter choice. IP67 rated and floats. At 0.9 lbs (420 g) it weighs much less than the W-King D320 at 3.1 lbs (1.4 kg). The catch: Not stereo, barely any bass, recessed treble.
Buy the W-King D320. It is rated higher for sound quality than the Ultimate Ears Wonderboom 2 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| W-King D320 | Ultimate Ears Wonderboom 2 | |
|---|---|---|
| Price | $52.92 | $80 |
| Ranked | #51 of 175 in Medium Size Portable Bluetooth Speakers | #111 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | No |
| Battery Life | 24 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| EQ | Yes | No |
| IP Rating | IP67 | IP67 |
| MicroSD Playback | Yes | - |
| Stereo | No | No |
| Omnidirectional | No | Yes |
| TWS | No | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.1 |
| Dimensions | 3.3” x 8.4” (83 x 214 mm) (diameter x height) | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 52mm x 91mm woofer, 2x 25mm tweeters + 2x passive radiators | 2x 40mm active drivers + 2x passive radiators |
| Frequency Response | 100Hz - 18kHz (Manufacturer specified) | - |
| Power Input | USB-C | Micro USB |
| Amplifier Power | 40W | - |
| Weight | 3.1 lbs (1.4 kg) | 0.9 lbs (420 g) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Bass Extension (-10dB) | - | 82Hz |
| Maximum SPL | - | 88dB (measured by Alan Ross Reviews) |
| Party Mode | - | No |
| Strap | - | Yes (built-in loop) |
Related Speaker Comparisons
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- EarFun Uboom L vs W-King D320
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- Soundcore Boost “upgraded” 2021 vs W-King D320
- Minirig 4 vs W-King D320
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 D320: $52.92 AliExpress $52.92 eBay
Pros: A 1.4kg, IP67-rated travel speaker with claimed 40W output, USB-C charging, aux and microSD playback, speakerphone capability and an app with adjustable EQ. Owner reports praise its loud, deep-for-size bass and long runtime, while its two tweeters and passive radiators make it a capable choice for casual outdoor listening.
Cons: A single D320 is not stereo, and its warm balance trades away some detail and upper-treble air. The claimed 100Hz low-frequency specification suggests that its perceived bass should not be mistaken for true sub-bass; evaluate its tuning with the app rather than expecting a neutral default.
Full W-King D320 review and specifications →
| Released | Aug 2023 (3 years ago) |
|---|---|
| Amplifier Power | 40W |
| App | Yes |
| Aux Input | Yes |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 3.3” x 8.4” (83 x 214 mm) (diameter x height) |
| 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 |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | No |
| Weight | 3.1 lbs (1.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Techder Audios: W-king D320 VS Mifa Wildrod "DUAL VS SINGLE TWEETERS!" More from techderaudios →
- Jay’s Straight Up Reviews & More: Ultimate Ears MegaBoom 4 vs W-King D320 🔋Does Paying More Get You Less? 😧 More from JaysStraightUpReviews →
- Audio y Mas 🔊: Altavoces JBL Flip 6 vs W-King D320: ¿Cuál es el mejor en calidad de sonido? 🔊
- Head-to-Head Comparisons
Ultimate Ears Wonderboom 2: $80 Amazon $80 eBay
Newer model: the Ultimate Ears Wonderboom 4, ranked higher, rated 2.9/5, released Jun 2024.
Older model: the Ultimate Ears Wonderboom (ranked lower, rated 2.9/5). See every Ultimate Ears Wonderboom, Boom and Megaboom generation.
Pros: IP67 rated and floats. Compact and light enough to toss in a bag. Measured bass extension of 82Hz (-10dB).
Cons: Not stereo, barely any bass, recessed treble. Slightly boosted 93Hz upper bass Dip at 9kHz. 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 2019. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Wonderboom 2 review and specifications →
| Released | Jun 2019 (7 years ago) |
|---|---|
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 82Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| 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 |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 88dB (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Input | Micro USB |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: The biggest upgrade since time began! 💪 More from alanrossreviews →
- Alan Ross Reviews: UE Wonderboom 2 review and sound test - vs Flip 5 - Flip 4
- Alan Ross Reviews: Soundcore Flare 2 - mega 360 degree speaker shootout!
- Danny Pops: MICRO SPEAKERS - my take on JBL Clip 4 VS Wonderboom 2 VS Bose Micro More from DannyPops →
- Head-to-Head Comparisons
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- Ultimate Ears Wonderboom 2 vs Ultimate Ears Wonderboom
- Ultimate Ears Wonderboom 2 vs Ultimate Ears Boom 4
- Ultimate Ears Wonderboom 2 vs Ultimate Ears Wonderboom 4
- Ultimate Ears Wonderboom 2 vs Ultimate Ears Boom 3
- Ultimate Ears Wonderboom 2 vs Ultimate Ears Megaboom 3
- Ultimate Ears Wonderboom 2 vs LG Xboom Grab
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- See all 89 comparisons