Short answer: the Minirig 4 if sound quality matters most, the W-King D320 if price matters most. The Minirig 4 ranks #7 of 177 medium speakers, rated 4.3/5, at $229.95. The W-King D320 ranks #49, rated 3.6/5, at $52.92, $177.03 cheaper.
The Minirig 4 is the better-sounding, lighter option. A small, long lasting speaker that gets loud and can add a matching subwoofer, with a 30 hour battery. At 1.2 lbs (550 g) it weighs much less than the W-King D320 at 3.1 lbs (1.4 kg). Watch for: Calls itself splash resistant and has no official water rating.
The W-King D320 is the tougher pick. An affordable waterproof travel speaker with loud, punchy bass, long battery life, an aux input, microSD playback and app EQ. It is rated IP67 against Splash resistant for the Minirig 4. The catch: A single D320 is not stereo, and its warm balance trades away some detail and upper-treble air.
Buy the Minirig 4 if sound quality is the priority over the price, or the W-King D320 if the price is the priority over sound quality.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A small, long lasting speaker that gets loud and can add a matching subwoofer, with a 30 hour battery.
An affordable waterproof travel speaker with loud, punchy bass, long battery life, an aux input, microSD playback and app EQ.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| Minirig 4 | W-King D320 | |
|---|---|---|
| Price | $229.95 | $52.92 |
| Ranked | #7 of 177 in Medium Size Portable Bluetooth Speakers | #49 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | Yes |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 56Hz | - |
| Battery Life | 30 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | SBC (inferred; additional codecs unverified) |
| EQ | Yes | Yes |
| IP Rating | Splash resistant | IP67 |
| Bluetooth Latency | 60ms | - |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | - |
| Power Bank | Yes (USB-C) | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | No |
| TWS | Yes (Bluetooth or cable) | No |
| Weight | 1.2 lbs (550 g) | 3.1 lbs (1.4 kg) |
| Bluetooth Version | 5.0 | 5.3 |
| Dimensions | 4” x 2.9” (101.6 x 73 mm) (diameter x height) | 3.3” x 8.4” (83 x 214 mm) (diameter x height) |
| Drivers | 70mm custom driver | 52mm x 91mm woofer, 2x 25mm tweeters + 2x passive radiators |
| Frequency Response | 60Hz - 18kHz (Manufacturer specified) | 100Hz - 18kHz (Manufacturer specified) |
| Amplifier Power | 50W | 40W |
| Built-in Microphone | Yes | Yes |
| Digital Aux Input | No | No |
| MicroSD Playback | - | Yes |
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