Short answer: the Motion Boom, despite the higher price. It ranks #14 of 120 large speakers at $109.99; the D8 ranks #61 at $69.98, $40.01 less. The Soundcore Motion Boom is discontinued; its replacement is the Soundcore Boom 2. If you are buying new, get the Soundcore Boom 2.
The D8’s cons are short but real: slightly recessed mids and distortion at high volumes, which our notes summarize as merely decent sounding overall.
The Motion Boom is described as excellent budget-friendly value, with a genuine 24-hour battery and a buoyant waterproof design, its only real knock being less neutral and detailed than the top of the class.
Buy the Motion Boom for the meaningfully better ranking. Buy the D8 if the $40.01 saved matters more to you.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A great value waterproof boombox that floats, with loud, bass rich sound, a long battery and a phone charging port.
An affordable stereo boombox with four drivers, waterproofing, and a long battery for backyard and beach playlists.
Prices on this page were last checked November 7, 2026 at 7:34 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Soundcore Motion Boom | W-King D8 | |
|---|---|---|
| Price | $109.99 Discontinued | $69.98 |
| Ranked | #14 of 120 in Large Size Portable Bluetooth Speakers | #61 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 53Hz | 49Hz |
| Battery Life | 24 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| EQ | Yes | No |
| IP Rating | IPX7 | IPX7 |
| Bluetooth Latency | 170ms | - |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | 101dB (measured by Alan Ross Reviews) |
| Party Mode | No | No |
| Power Bank | Yes (USB-A) | Yes (USB-A) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Weight | 3.3 lbs (1.5 kg) | 5.4 lbs (2.43 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| Bluetooth Version | 5.0 | 5.0 |
| Dimensions | 13.6” x 7.9” x 5.8” (346 x 200 x 148 mm) | 12.6” x 4.8” x 4.7” (320 x 121.9 x 119.4 mm) |
| Drivers | 2x 63.5mm titanium fullrange drivers + 2x passive radiators | 2x 70mm woofers + 2x 31mm tweeters + passive radiators |
| Amplifier Power | 30W | 90W max / 50W RMS |
| Digital Aux Input | No | No |
| MicroSD Playback | - | Yes |
Watch Them Compared
Videos and reviews that test both speakers side by side.
Related Speaker Comparisons
More top alternatives to Soundcore Motion Boom: