Short answer: the B&O Beosound A1 2nd gen on measured sound quality, the W-King D320 on price. The B&O Beosound A1 2nd gen ranks #11 of 177 medium speakers, rated 4.3/5, at $395. The W-King D320 ranks #49, rated 3.6/5, at $52.92, $342.08 cheaper.
The B&O Beosound A1 2nd gen is the better-sounding, lighter choice. A premium waterproof puck speaker with balanced sound, a built in strap, and a long battery for travel. At 1.2 lbs (558 g) it weighs much less than the W-King D320 at 3.1 lbs (1.4 kg).
The W-King D320 is the longer-running option. An affordable waterproof travel speaker with loud, punchy bass, long battery life, an aux input, microSD playback and app EQ. It is rated for 24 hours of battery against 18 for the B&O Beosound A1 2nd gen. It keeps a wired aux input, which the B&O Beosound A1 2nd gen lacks. Watch for: A single D320 is not stereo, and its warm balance trades away some detail and upper-treble air.
Buy the B&O Beosound A1 2nd gen when sound quality outweighs the price for you, and the W-King D320 when the price outweighs sound quality instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A premium waterproof puck speaker with balanced sound, a built in strap, and a long battery for travel.
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
| B&O Beosound A1 2nd gen | W-King D320 | |
|---|---|---|
| Price | $395.00 | $52.92 |
| Ranked | #11 of 177 in Medium Size Portable Bluetooth Speakers | #49 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 58Hz | - |
| Battery Life | 18 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes | Yes |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 90ms | - |
| Maximum SPL | 93dB (measured by Alan Ross Reviews) | - |
| Power Bank | No | - |
| Stereo | No | No |
| Omnidirectional | Pointing up | No |
| TWS | Yes | No |
| Digital Aux Input | Yes (USB-C) | No |
| Weight | 1.2 lbs (558 g) | 3.1 lbs (1.4 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive | SBC (inferred; additional codecs unverified) |
| Power Input | USB-C | USB-C |
| Drivers | 3.5mm aluminium driver + 0.75 inch silk dome tweeter | 52mm x 91mm woofer, 2x 25mm tweeters + 2x passive radiators |
| Dimensions | 5.2”W x 5.2”D x 1.8”H (133 x 133 x 46 mm) | 3.3” x 8.4” (83 x 214 mm) (diameter x height) |
| Amplifier Power | 60W total (2x 30W Class D) | 40W |
| Bluetooth Version | 5.1 | 5.3 |
| Strap | Yes (built-in strap) | - |
| MicroSD Playback | - | Yes |
| Frequency Response | - | 100Hz - 18kHz (Manufacturer specified) |
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