Short answer: the W-King D320. It ranks #51 of 175 medium speakers by sound quality (rated 3.6/5) at $52.92 and is still sold new; the JBL Flip 4 ranks #83 (rated 3.3/5) and is discontinued, so it is only an option used. The JBL Flip 4’s replacement, the JBL Flip 7, is rated 4.2/5 at $89.95.
The W-King D320 is the better-sounding, longer-running pick. 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 JBL Flip 4. It has an adjustable EQ, which the JBL Flip 4 lacks. It charges over USB-C rather than Micro USB. The catch: A single D320 is not stereo, and its warm balance trades away some detail and upper-treble air.
The JBL Flip 4 is the lighter choice. At 1.1 lbs (510 g), JBL Flip 4 combines 2x 40mm fullrange with Bluetooth and aux. At 1.1 lbs (510 g) it weighs much less than the W-King D320 at 3.1 lbs (1.4 kg). It plays in stereo from a single unit, unlike the W-King D320. The catch: Battery failures are common.
Buy the W-King D320. It is rated higher for sound quality and still sold new, while the JBL Flip 4 is discontinued.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| W-King D320 | JBL Flip 4 | |
|---|---|---|
| Price | $52.92 | $70 Discontinued |
| Ranked | #51 of 175 in Medium Size Portable Bluetooth Speakers | #83 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Battery Life | 24 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Built-in Microphone | Yes | - |
| EQ | Yes | No |
| IP Rating | IP67 | IPX7 |
| MicroSD Playback | Yes | - |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 4.2 |
| Dimensions | 3.3” x 8.4” (83 x 214 mm) (diameter x height) | 6.9” x 2.8” x 2.6” (175 x 70 x 65 mm) |
| Drivers | 52mm x 91mm woofer, 2x 25mm tweeters + 2x passive radiators | 2x 40mm fullrange |
| Frequency Response | 100Hz - 18kHz (Manufacturer specified) | 70Hz - 20kHz (Manufacturer specified) |
| Power Input | USB-C | Micro USB |
| Amplifier Power | 40W | 16W RMS |
| Weight | 3.1 lbs (1.4 kg) | 1.1 lbs (510 g) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Bass Extension (-10dB) | - | 66Hz |
| Bluetooth Latency | - | 300ms |
| Party Mode | - | Yes (Connect+ up to 100 speakers) |
| Maximum SPL | - | 92dB (Manufacturer specified) |
| Strap | - | Yes (lanyard) |
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More worthwhile head-to-heads for W-King D320:
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- Soundcore Motion 300 vs W-King D320
- Soundcore Motion+ vs W-King D320
- 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
JBL Flip 4: $70 Discontinued Amazon $70 eBay
Newer model: the JBL Flip 7, ranked higher, rated 4.2/5, released Mar 2025. See every JBL Flip generation.
Pros: At 510 g, JBL Flip 4 combines 2x 40mm fullrange with Bluetooth and aux. Claimed 12 hours (manufacturer specified) battery life, ipx7 protection, up to 92db and single-box playback make its feature set practical for its intended room or portable use. Measured bass extension of 66Hz (-10dB).
Cons: Bass is limited by its 66Hz specification. There is no companion app. No EQ adjustment. Battery failures are common. Discontinued.
Full JBL Flip 4 review and specifications →
| Released | Feb 2017 (9 years ago) |
|---|---|
| Amplifier Power | 16W RMS |
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 66Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 300ms |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 6.9” x 2.8” x 2.6” (175 x 70 x 65 mm) |
| Drivers | 2x 40mm fullrange |
| EQ | No |
| Frequency Response | 70Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 92dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Input | Micro USB |
| Stereo | Yes |
| Strap | Yes (lanyard) |
| TWS | No |
| Weight | 1.1 lbs (510 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons