Short answer: the Ultimate Ears Megablast for better sound quality, the W-King D9 for the lower price. The Ultimate Ears Megablast ranks #61 of 77 large speakers at $240. The W-King D9 ranks #65 at $71.24, $168.76 cheaper.
What the Ultimate Ears Megablast offers: 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. Watch for: Bass is not very deep compared to the competition
What the W-King D9 offers: 60W RMS output, 106dB max volume, exceptional 40-hour battery life, power bank function, IPX6 waterproof, MicroSD and AUX support, dual drivers with passive radiators, Bluetooth 5.3, USB-C charging, EQ button, shockproof design Watch for: Very rolled off treble.
Buy the Ultimate Ears Megablast when sound quality outweighs the price for you, and the W-King D9 when the price outweighs sound quality instead.
If sound quality matters at all to you, skip both of these and look higher up the 77 large speakers instead.
If battery life is a priority, the W-King D9 is rated for 40 hours versus 16 hours for the Ultimate Ears Megablast.
Specifications Side By Side
| Ultimate Ears Megablast | W-King D9 | |
|---|---|---|
| Price | $240 Discontinued | $71.24 |
| Ranked | #61 of 77 in Large Size Portable Bluetooth Speakers | #65 of 77 in Large Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 64Hz | 47Hz |
| Battery Life | 16 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| Weight | 2.4 lbs / 1.1 kg | 4.4 lbs / 2.0 kg |
| App | No | No |
| Aux Input | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built in Microphone | Yes | Yes |
| EQ | No | No |
| IP Rating | IPX7 | IPX6 |
| Party Mode | No | No |
| Power Bank | No | Yes (USB-A) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Bluetooth Version | 4.2 | 5.3 |
| Drivers | 2x 55mm fullrange, 2x 25mm tweeters | 2x 40mm drivers + passive radiators |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 80Hz - 16kHz (Manufacturer specified) |
| Output Power | Specs not published by manufacturer | 60W RMS |
| Dimensions | 9.3" x 3.5" (236.2 x 88.9 mm) (height x diameter) | 4.7" x 12.4" x 4.7" (120 x 315 x 120 mm) |
| Discontinued | Yes | - |
| Digital Aux Input | No | No |
| Max Volume | - | 106dB |
| MicroSD Playback | - | Yes |
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Prices on this page were last checked August 27, 2026 at 10:09 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
Ultimate Ears Megablast: $240 Discontinued Ultimate Ears Megablast 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.
Cons: Bass is not very deep compared to the competition. Discontinued.
Full Ultimate Ears Megablast review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 64Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| 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) |
| Discontinued | Yes |
| Drivers | 2x 55mm fullrange, 2x 25mm tweeters |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Output Power | Specs not published by manufacturer |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.4 lbs / 1.1 kg |
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W-King D9: $71.24 Amazon eBay
Pros: 60W RMS output, 106dB max volume, exceptional 40-hour battery life, power bank function, IPX6 waterproof, MicroSD and AUX support, dual drivers with passive radiators, Bluetooth 5.3, USB-C charging, EQ button, shockproof design
Cons: Very rolled off treble.
Full W-King D9 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| 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 |
| Max Volume | 106dB |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Output Power | 60W RMS |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | No |
| Weight | 4.4 lbs / 2.0 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons