Short answer: the W-King D10, though neither ranks well in its class. It ranks #76 of 98 boombox speakers by sound quality, rated 2.7/5, at $119.98; the Zealot S78 ranks #97, rated 2.0/5, and costs $159.68, which makes this an easy call rather than a real tradeoff. Both are rated below 3.0/5 among the 98 boombox speakers; for better sound, the Tribit Stormbox Blast ranks #2 at $179.99.
The W-King D10 is the better-sounding choice. 70W RMS output with 120W peak power, exceptional 42-hour battery life, power bank function, IPX6 waterproof, 106dB max volume, EQ and bass boost, microphone input for karaoke, MicroSD card support, USB playback, TWS pairing. The tradeoff: Upper bass boost, bass not that deep.
Why pick the Zealot S78: A robust 9.7 lbs (4.4 kg) party speaker with claimed 120W RMS output, IP67 protection, USB-C charging, a power-bank function, aux, USB and microSD playback, TWS pairing and multiple EQ modes. The catch: At high volume, reviews report distortion and fluctuating level, so its headline power is more useful below its maximum setting.
Buy the W-King D10. It is rated higher for sound quality than the Zealot S78 and costs less, which makes it the one to get unless you need something the other one does better.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| W-King D10 | Zealot S78 | |
|---|---|---|
| Price | $119.98 | $159.68 |
| Ranked | #76 of 98 in Boombox Size Portable Bluetooth Speakers | #97 of 98 in Boombox Size Portable Bluetooth Speakers |
| Bluetooth Version | 5.4 | 5.3 |
| Aux Input | Yes | Yes |
| Aux Latency | 50ms | - |
| Bass Extension (-10dB) | 60Hz | - |
| Battery Life | 42 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| IP Rating | IPX6 | IP67 |
| Bluetooth Latency | 133ms | - |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | Yes |
| Power Bank | Yes | Yes (USB-A) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 7.9 lbs (3.6 kg) | 9.7 lbs (4.4 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | Yes (bass boost + DSP) | Yes (multiple modes) |
| Party Mode | No | No |
| USB Playback | Yes | Yes |
| Built-in Microphone | No | No |
| Power Input | USB-C | USB-C |
| FM Tuner | No | - |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Amplifier Power | 120W max / 70W RMS | 120W RMS / 150W peak |
| Drivers | 2x 40mm drivers + passive radiator | 2x ~120mm (4.72”) woofers + 2x ~42mm tweeters + 2x passive radiators |
| Digital Aux Input | No | No |
| Dimensions | 14.5” x 7.6” x 6.1” (369 x 194 x 154 mm) | 16.1” x 6.6” x 7.3” (410 x 167 x 185 mm) |
| Strap | - | Yes (detachable shoulder strap) |
Related Speaker Comparisons
More worthwhile head-to-heads for W-King D10:
- EarFun Uboom X vs W-King D10
- Tribit Stormbox Blast vs W-King D10
- Harman Kardon Go + Play 3 vs W-King D10
- JBL Partybox Encore 2 vs W-King D10
- JBL PartyBox On-The-Go 2 Plus vs W-King D10
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 D10: $119.98 Amazon $119.98 eBay
Pros: 70W RMS output with 120W peak power, exceptional 42-hour battery life, power bank function, IPX6 waterproof, 106dB max volume, EQ and bass boost, microphone input for karaoke, MicroSD card support, USB playback, TWS pairing. Measured bass extension of 60Hz (-10dB).
Cons: Upper bass boost, bass not that deep.
Full W-King D10 review and specifications →
| Released | Jan 2022 (4 years ago) |
|---|---|
| Amplifier Power | 120W max / 70W RMS |
| App | No |
| Aux Input | Yes |
| Aux Latency | 50ms |
| Bass Extension (-10dB) | 60Hz |
| Battery Life | 42 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 133ms |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 14.5” x 7.6” x 6.1” (369 x 194 x 154 mm) |
| Drivers | 2x 40mm drivers + passive radiator |
| EQ | Yes (bass boost + DSP) |
| FM Tuner | No |
| IP Rating | IPX6 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 7.9 lbs (3.6 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Zealot S78: $159.68 Amazon $159.68 AliExpress $91.38 eBay
Pros: A robust 4.4kg party speaker with claimed 120W RMS output, IP67 protection, USB-C charging, a power-bank function, aux, USB and microSD playback, TWS pairing and multiple EQ modes. Reviews find it very loud with useful bass and long claimed battery life, making it a credible choice for outdoor gatherings.
Cons: At high volume, reviews report distortion and fluctuating level, so its headline power is more useful below its maximum setting. It has no app-based EQ, and the bass and midrange refinement do not match better-established boombox speakers; assess its sound in person if tonal accuracy matters.
Full Zealot S78 review and specifications →
| Released | May 2023 (3 years ago) |
|---|---|
| Amplifier Power | 120W RMS / 150W peak |
| App | No |
| Aux Input | Yes |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 16.1” x 6.6” x 7.3” (410 x 167 x 185 mm) |
| Drivers | 2x ~120mm (4.72”) woofers + 2x ~42mm tweeters + 2x passive radiators |
| EQ | Yes (multiple modes) |
| IP Rating | IP67 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 9.7 lbs (4.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: DBSOARS F29 Max vs Zealot S78 🛜 (5B) Budget Bluetooth Boombox Basement Battle 🔊 Bass Modes Enabled More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: W-King X20 vs Zealot S78 Bluetooth Boombox Battle Outdoor Tailgater Special 🚗 Let the Whoopin’ Begin
- Head-to-Head Comparisons