Short answer: the W-King D8. It ranks #57 of 105 large speakers by sound quality (rated 3.5/5) at $69.99 and is still sold new; the Ultimate Ears Megablast ranks #87 (rated 2.8/5) and is discontinued, so it is only an option used.
The W-King D8 is the better-sounding, deeper-bass pick. Claimed 24 hours (manufacturer specified) battery life, ipx7 protection, up to 101db and stereo playback make its feature set practical for its intended room or portable use. Its bass reaches about 49Hz before falling 10dB, against 64Hz for the Ultimate Ears Megablast. It is rated for 24 hours of battery against 16 for the Ultimate Ears Megablast.
The Ultimate Ears Megablast is the lighter option. Alexa integration (Wi-Fi + Bluetooth). At 2.4 lbs (1.1 kg) it weighs much less than the W-King D8 at 5.4 lbs (2.43 kg). The tradeoff: Bass is not very deep compared to the competition.
Buy the W-King D8. It is rated higher for sound quality and still sold new, while the Ultimate Ears Megablast is discontinued.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| W-King D8 | Ultimate Ears Megablast | |
|---|---|---|
| Price | $69.99 | $240 Discontinued |
| Ranked | #57 of 105 in Large Size Portable Bluetooth Speakers | #87 of 105 in Large Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 49Hz | 64Hz |
| Battery Life | 24 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Maximum SPL | 101dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | - |
| Power Bank | Yes (USB-A) | No |
| TWS | No | Yes |
| Weight | 5.4 lbs (2.43 kg) | 2.4 lbs (1.1 kg) |
| App | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | No |
| IP Rating | IPX7 | IPX7 |
| Party Mode | No | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Amplifier Power | 90W max / 50W RMS | - |
| Dimensions | 12.6” x 4.8” x 4.7” (320 x 121.9 x 119.4 mm) | 9.3” x 3.5” (236.2 x 88.9 mm) (height x diameter) |
| Drivers | 2x 70mm woofers + 2x 31mm tweeters + passive radiators | 2x 55mm fullrange, 2x 25mm tweeters |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.0 | 4.2 |
| Wi-Fi | - | Yes |
| Voice Assistants | - | Amazon Alexa |
| Frequency Response | - | 60Hz - 20kHz (Manufacturer specified) |
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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
W-King D8: $69.99 Amazon $69.99 eBay
Pros: At 2.43 kg, W-King D8 combines 2x 70mm woofers + 2x 31mm tweeters + passive radiators with Bluetooth and aux. Claimed 24 hours (manufacturer specified) battery life, ipx7 protection, up to 101db and stereo playback make its feature set practical for its intended room or portable use. Measured bass extension of 49Hz (-10dB).
Cons: Bass is limited by its 49Hz specification. There is no companion app. No EQ adjustment.
Full W-King D8 review and specifications →
| Released | Jan 2020 (6 years ago) |
|---|---|
| Amplifier Power | 90W max / 50W RMS |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 49Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.6” x 4.8” x 4.7” (320 x 121.9 x 119.4 mm) |
| Drivers | 2x 70mm woofers + 2x 31mm tweeters + passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Maximum SPL | 101dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | No |
| Weight | 5.4 lbs (2.43 kg) |
- Links
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- Head-to-Head Comparisons
Ultimate Ears Megablast: $240 Discontinued eBay
Pros: Alexa integration (Wi-Fi + Bluetooth). 93dB loudest in UE lineup, 40% louder than Megaboom. IP67 waterproof and drop-proof. 16 hour battery. Party mode connects up to 8 speakers. Can use while charging to keep Alexa on 24/7. Measured bass extension of 64Hz (-10dB).
Cons: Bass is not very deep compared to the competition. Discontinued.
Full Ultimate Ears Megablast review and specifications →
| Released | Oct 2017 (9 years ago) |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 64Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.3” x 3.5” (236.2 x 88.9 mm) (height x diameter) |
| Drivers | 2x 55mm fullrange, 2x 25mm tweeters |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Voice Assistants | Amazon Alexa |
| Weight | 2.4 lbs (1.1 kg) |
| Wi-Fi | Yes |
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