Short answer: the Zealot S89. It ranks #19 of 98 boombox speakers by sound quality, rated 4.0/5, at $246.99. The W-King X10 ranks #86, rated 2.3/5, at $80, $166.99 cheaper, which does not close the gap in sound quality.
The Zealot S89 is the better-sounding, deeper-bass choice. A 16.1 lbs (7.3 kg) boombox with a claimed 36Hz bass extension, 40-hour battery life, IPX6 protection, USB-C charging, aux, USB and microSD playback, TWS and multi-speaker PartyAdd. Its bass reaches about 36Hz before falling 10dB, against 52Hz for the W-King X10. It links with other speakers (PartyAdd up to 100 speakers), which the W-King X10 cannot. Watch for: At high volume, listener reports describe the bass as loose or muddy and the overall balance as less clear than better boombox speakers.
The W-King X10 is the lighter pick. At 6.5 lbs (2.95 kg) it weighs much less than the Zealot S89 at 16.1 lbs (7.3 kg). Watch for: Heavily rolled off treble, less bass than the top ranked.
Buy the Zealot S89. It is rated higher for sound quality, and the $166.99 you would save on the W-King X10 does not close the gap.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Zealot S89 | W-King X10 | |
|---|---|---|
| Price | $246.99 | $80 |
| Ranked | #19 of 98 in Boombox Size Portable Bluetooth Speakers | #86 of 98 in Boombox Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 36Hz | 52Hz |
| Battery Life | 40 hours (Manufacturer specified) | 42 hours (Manufacturer specified) |
| EQ | Yes (multiple modes) | Yes (2 modes - Indoor/Outdoor) |
| IP Rating | IPX6 | IPX6 |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| MicroSD Playback | Yes | Yes |
| Party Mode | Yes (PartyAdd up to 100 speakers) | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 16.1 lbs (7.3 kg) | 6.5 lbs (2.95 kg) |
| Power Bank | Yes (USB-A + USB-C) | Yes (USB-A) |
| USB Playback | Yes | Yes |
| Built-in Microphone | No | Yes |
| Amplifier Power | 250W | 70W RMS (120W peak) |
| Dimensions | 21.2” x 10.4” x 9.4” (538 x 265 x 240 mm) | 12.4” x 5.5” x 5.3” (315 x 140 x 135 mm) |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters | 2x 3.66” (93mm) subwoofers + 2x 1.2” (31mm) neodymium tweeters + 3x passive radiators |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.3 | 5.0 |
| Strap | No | Yes (detachable shoulder strap) |
| Maximum SPL | - | 106dB (measured by Alan Ross Reviews) |
| FM Tuner | - | No |
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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
Zealot S89: $246.99 Amazon $246.99 AliExpress $193.58 eBay
Pros: A 7.3kg boombox with a claimed 36Hz bass extension, 40-hour battery life, IPX6 protection, USB-C charging, aux, USB and microSD playback, TWS and multi-speaker PartyAdd. Listener comparisons find it capable of very high output and substantial bass for outdoor use. A great value for its bass, battery life and maximum volume. Measured bass extension of 36Hz (-10dB).
Cons: At high volume, listener reports describe the bass as loose or muddy and the overall balance as less clear than better boombox speakers. The heavy cabinet and basic finish also make it less polished for daily portability, while its multiple EQ modes cannot substitute for a genuinely neutral tuning.
Full Zealot S89 review and specifications →
| Released | Mar 2025 (1 year ago) |
|---|---|
| Amplifier Power | 250W |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 36Hz |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 21.2” x 10.4” x 9.4” (538 x 265 x 240 mm) |
| Drivers | 130W subwoofer + 2x 40mm drivers + 2x tweeters |
| EQ | Yes (multiple modes) |
| IP Rating | IPX6 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-A + USB-C) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 16.1 lbs (7.3 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Zealot S89 vs Yeahbox Sonic Boom Max 3 - indoor listening fun More from Oluv’Sone →
- Joy & Oluv’Sone: Zealot S89 vs Yeahbox Sonic Boom Max3 - outdoor test
- Oluv Patreon: Zealot S89 vs Yeahbox Sonic Boom Max3 - outdoor test
- Oluv Patreon: Zealot S89 vs Yeahbox Sonic Boom Max 3
- Oluv Patreon: Zealot S89 vs Yeahbox Sonic Boom Max 3
- Oluv Patreon: Zealot S89 vs Yeahbox Boom Max3 - indoor listening test
- Dominik Reviews: Zealot S89 vs JBL Boombox 4 - JBL Alternative? Sound Test More from Dominik Reviews →
- Techder Audios: ZEALOT S89 VS ZEALOT ZE01 EXTREME POWERFULL VS COMPACTER BASS PERFORMANCE! More from techderaudios →
- Jagist reviews: Jbl Boombox 4 Vs Zealot S89!!! More from Jagistreviews →
- Jagist reviews: Zealot PT21 Vs Zealot S89!!! 😈😈😈
- YARNZO Tech: Zealot s89 vs zealot s98 Full sound comparison (with DB sound meter App) More from YARNZO Tech →
- YARNZO Tech: Zealot s98 vs zealot s89 and zealot s95 outdoor sound battle 🔊
- J_Strat Battles: Zealot S89 (Revised Version) vs PT11
- UFO SoYLX: Zealot S98 Vs Zealot S89 Deep Bass speaker 2025 📟
- Head-to-Head Comparisons
W-King X10: $80 Amazon $80 AliExpress $80.37 eBay
Pros: 70W RMS output with 120W peak power, exceptional 42-hour battery life, power bank function, IPX6 waterproof, 106dB max volume, EQ with indoor/outdoor modes, dual woofers with tweeters and passive radiators, Bluetooth 5.0 with 100ft range, MicroSD and USB playback, AUX input, TWS stereo pairing. Measured bass extension of 52Hz (-10dB).
Cons: Heavily rolled off treble, less bass than the top ranked.
Full W-King X10 review and specifications →
| Released | May 2021 (5 years ago) |
|---|---|
| Amplifier Power | 70W RMS (120W peak) |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 52Hz |
| Battery Life | 42 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 12.4” x 5.5” x 5.3” (315 x 140 x 135 mm) |
| Drivers | 2x 3.66” (93mm) subwoofers + 2x 1.2” (31mm) neodymium tweeters + 3x passive radiators |
| EQ | Yes (2 modes - Indoor/Outdoor) |
| FM Tuner | No |
| IP Rating | IPX6 |
| Maximum SPL | 106dB (measured by Alan Ross Reviews) |
| 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 | 6.5 lbs (2.95 kg) |
- Links
- Reviews, Comparisons and Sound Samples
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- Head-to-Head Comparisons