Short answer: the Ultimate Ears Everboom on measured sound quality, the W-King D9 on price. The Ultimate Ears Everboom ranks #32 of 77 large speakers at $149.99. The W-King D9 ranks #65 at $71.24, $78.75 cheaper.
What the Ultimate Ears Everboom offers: This speaker may move around as we get better sound samples Watch for: Has an upper bass boost and is tuned warm with rolled off treble. Not very deep bass.
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 Everboom if sound quality matters more than the price. Buy the W-King D9 if the price matters more than sound quality.
Skip the W-King D9 if sound quality matters to you. It ranks near the bottom of the 77 large speakers.
If battery life is a priority, the W-King D9 is rated for 40 hours versus 20 hours for the Ultimate Ears Everboom.
Specifications Side By Side
| Ultimate Ears Everboom | W-King D9 | |
|---|---|---|
| Price | $149.99 | $71.24 |
| Ranked | #32 of 77 in Large Size Portable Bluetooth Speakers | #65 of 77 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Battery Life | 20 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| EQ | Yes | No |
| IP Rating | IP67 | IPX6 |
| Party Mode | Yes (PartyUp up to 50 speakers) | No |
| Power Bank | No | Yes (USB-A) |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| TWS | No | No |
| Weight | 2.1 lbs / 949 g | 4.4 lbs / 2.0 kg |
| Aux Input | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built in Microphone | Yes | Yes |
| Bluetooth Version | 5.1 | 5.3 |
| Dimensions | 8.1" x 3.3" x 4.3" (205 x 85 x 110 mm) | 4.7" x 12.4" x 4.7" (120 x 315 x 120 mm) |
| Drivers | 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators | 2x 40mm drivers + passive radiators |
| Output Power | 14W | 60W RMS |
| Digital Aux Input | No | No |
| Bass Extension (-10dB) | - | 47Hz |
| Max Volume | - | 106dB |
| MicroSD Playback | - | Yes |
| Frequency Response | - | 80Hz - 16kHz (Manufacturer specified) |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- JBL Xtreme 2 vs Soundcore Rave Neo
- Soundcore Motion X600 vs Soundcore Rave Neo
- Sony SRS-XB43 vs Soundcore Rave Neo
- JBL Xtreme 2 vs W-King D9
- Soundcore Motion X600 vs W-King D9
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Ultimate Ears Everboom: $149.99 Amazon eBay
Pros: This speaker may move around as we get better sound samples
Cons: Has an upper bass boost and is tuned warm with rolled off treble. Not very deep bass.
Full Ultimate Ears Everboom review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.1" x 3.3" x 4.3" (205 x 85 x 110 mm) |
| Drivers | 2x 56.6mm x 56.2mm fullrange transducers + 2x passive radiators |
| EQ | Yes |
| IP Rating | IP67 |
| Omnidirectional | Yes |
| Output Power | 14W |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | No |
| Weight | 2.1 lbs / 949 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Everboom vs Marshall Middleton
- Ultimate Ears Everboom vs LG Xboom Bounce
- Ultimate Ears Everboom vs Marshall Kilburn II
- Ultimate Ears Everboom vs Marshall Middleton II
- Ultimate Ears Everboom vs Sonos Move
- Ultimate Ears Everboom vs JBL Xtreme 4
- Ultimate Ears Everboom vs W-King T9
- Ultimate Ears Everboom vs Sonos Move 2
- See all 38 comparisons
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