Short answer: the W-King X10-1, though neither ranks well in its class. It ranks #90 of 113 boombox speakers by sound quality, rated 2.4/5, at $139.99. The Zealot S78 ranks #111, rated 2.0/5, at $91.38, $48.61 cheaper, not enough of a saving to outweigh the sound-quality gap. Both are rated below 3.0/5 among the 113 boombox speakers, and the Zealot S98, ranked #25 at $146.99, is a better place to start if sound quality matters.
The W-King X10-1 is the better-sounding, lighter pick. An affordable stereo boombox with a very long battery, loud output, waterproofing and a power bank for charging phones. At 6.5 lbs (2.95 kg) it weighs noticeably less than the Zealot S78 at 9.7 lbs (4.4 kg). Watch for: Rolled off treble, not much bass.
What the Zealot S78 does well: A loud, rugged party speaker with full waterproofing, a power bank and wireless pairing for outdoor parties. 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 X10-1. It is rated higher for sound quality, and the $48.61 you would save on the Zealot S78 does not close the gap.
Want more options? Browse the full Portable Bluetooth rankings.
Prices on this page were last checked November 14, 2026 at 6:17 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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Specifications Side By Side
| W-King X10-1 | Zealot S78 | |
|---|---|---|
| Price | $139.99 | $91.38 |
| Ranked | #90 of 113 in Boombox Size Portable Bluetooth Speakers | #111 of 113 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 63Hz | - |
| Battery Life | 42 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| IP Rating | IPX6 | IP67 |
| Maximum SPL | 108dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | Yes |
| Power Bank | Yes (USB-A) | Yes (USB-A) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Weight | 6.5 lbs (2.95 kg) | 9.7 lbs (4.4 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | No | No |
| EQ | Yes (2 modes - Indoor/Outdoor) | Yes (multiple modes) |
| TWS | Yes | Yes |
| Party Mode | No | No |
| USB Playback | Yes | Yes |
| Built-in Microphone | Yes | No |
| Power Input | USB-C | USB-C |
| Bluetooth Version | 5.0 | 5.3 |
| Amplifier Power | 70W RMS (120W peak) | 120W RMS / 150W peak |
| Dimensions | 12.4” x 5.5” x 5.3” (315 x 140 x 135 mm) | 16.1” x 6.6” x 7.3” (410 x 167 x 185 mm) |
| Drivers | 2x 3.66” (93mm) subwoofers + 2x 1.2” (31mm) neodymium tweeters + 3x passive radiators | 2x ~120mm (4.72”) woofers + 2x ~42mm tweeters + 2x passive radiators |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | Yes (detachable shoulder strap) |
Where the Ratings Come From
- W-King X10-1: reviews by Alan Ross.
- Zealot S78: reviews by Jay’s Straight Up Reviews & More.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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