Short answer: the Bose SoundLink Plus. It ranks #25 of 105 large speakers by sound quality, rated 4.2/5, at $179.99. The W-King D9 ranks #91, rated 2.5/5, at $71.24, $108.75 cheaper, which does not close the gap in sound quality.
The Bose SoundLink Plus is the better-sounding, lighter pick. IP67 rated, IP67 water/dustproof. At 3.3 lbs (1.5 kg) it weighs noticeably less than the W-King D9 at 4.4 lbs (2 kg). It links with other speakers (Bose Party mode), which the W-King D9 cannot. Watch for: Boosted thuddy bass, but not as deep as the SoundLink Flex and you should probably just buy one of those instead if you want a Bose.
The W-King D9 is the longer-running choice. A compact 4.4 lbs (2 kg) boombox with 60W RMS output, a claimed 106dB maximum level, a measured 47Hz -10dB bass point, IPX6 protection, power-bank output, USB-C charging, aux and microSD playback. It is rated for 40 hours of battery against 20 for the Bose SoundLink Plus. It keeps a wired aux input, which the Bose SoundLink Plus lacks. Watch for: Treble rolls off early, limiting air and fine detail, while owner reports note Bluetooth interference and some noise at maximum speaker volume.
Buy the Bose SoundLink Plus. It is rated higher for sound quality, and the $108.75 saving on the W-King D9 is not enough to make up the difference.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Bose SoundLink Plus | W-King D9 | |
|---|---|---|
| Price | $179.99 | $71.24 |
| Ranked | #25 of 105 in Large Size Portable Bluetooth Speakers | #91 of 105 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Battery Life | 20 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| Built-in Microphone | No | Yes |
| IP Rating | IP67 | IPX6 |
| Party Mode | Yes (Bose Party mode) | No |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| Power Input | USB-C | USB-C |
| TWS | Yes | No |
| Weight | 3.3 lbs (1.5 kg) | 4.4 lbs (2.0 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| EQ | No | No |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Bluetooth Version | 5.4 | 5.3 |
| Dimensions | 9.1” x 3.9” x 3.4” (231 x 99 x 86 mm) | 4.7” x 12.4” x 4.7” (120 x 315 x 120 mm) |
| Drivers | 1x 2.5” (63.5mm) woofer + 1x ~0.78” (20mm) tweeter + 4x passive radiators | 2x 40mm drivers + passive radiators |
| Digital Aux Input | No | No |
| Strap | Yes (built-in loop) | No |
| Bass Extension (-10dB) | - | 47Hz |
| Maximum SPL | - | 106dB (measured by Alan Ross Reviews) |
| MicroSD Playback | - | Yes |
| Frequency Response | - | 80Hz - 16kHz (Manufacturer specified) |
| Amplifier Power | - | 60W RMS |
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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
Bose SoundLink Plus: $179.99 Amazon $179.99 eBay
Same family: the Bose Soundlink Flex 2nd gen (smaller model, rated 3.8/5), the Bose SoundLink Max (smaller model, ranked higher, rated 4.3/5) and the Bose Soundlink Micro 2 (smaller model, rated 3.6/5). See every Bose SoundLink Flex, Micro, Max and Plus generation.
Pros: IP67 rated, IP67 water/dustproof. Close to 20 hour battery life. Vibrant sound with booming bass, clean mids. Bluetooth 5.4 with good range. Premium tactile grille, smooth silicone. Quality build at $180.
Cons: Boosted thuddy bass, but not as deep as the SoundLink Flex and you should probably just buy one of those instead if you want a Bose.
Full Bose SoundLink Plus review and specifications →
| Released | Jun 2025 (1 year ago) |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 9.1” x 3.9” x 3.4” (231 x 99 x 86 mm) |
| Drivers | 1x 2.5” (63.5mm) woofer + 1x ~0.78” (20mm) tweeter + 4x passive radiators |
| EQ | No |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Bose Party mode) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 3.3 lbs (1.5 kg) |
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- Reviews, Comparisons and Sound Samples
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W-King D9: $71.24 Amazon $71.24 eBay
Pros: A compact 2kg boombox with 60W RMS output, a claimed 106dB maximum level, a measured 47Hz -10dB bass point, IPX6 protection, power-bank output, USB-C charging, aux and microSD playback. Long-term owners praise its loud, punchy character and useful indoor/outdoor voicing for casual outdoor listening. Measured bass extension of 47Hz (-10dB).
Cons: Treble rolls off early, limiting air and fine detail, while owner reports note Bluetooth interference and some noise at maximum speaker volume. There is no app or adjustable EQ, and its bass does not reach as deep as larger rivals, so it is better suited to energetic background music than neutral listening.
Full W-King D9 review and specifications →
| Released | Dec 2020 (5 years ago) |
|---|---|
| Amplifier Power | 60W RMS |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 4.7” x 12.4” x 4.7” (120 x 315 x 120 mm) |
| Drivers | 2x 40mm drivers + passive radiators |
| EQ | No |
| Frequency Response | 80Hz - 16kHz (Manufacturer specified) |
| IP Rating | IPX6 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | No |
| Weight | 4.4 lbs (2.0 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons