Short answer: the W-King X20S. Both are rated 3.8/5 for sound quality (#30 and #26 of 113 boombox speakers), and the W-King X20S costs $150.99 against $389.95 for the JBL Boombox 3 Wifi, with sound quality a draw, the lower price decides it.
Why pick the JBL Boombox 3 Wifi: A big, waterproof stereo boombox with Wi-Fi, a long battery and enough volume for any outdoor party. Watch for: Bass boosted.
What the W-King X20S does well: A lighter, waterproof boombox with clear mids, plenty of volume, FM radio and a handle plus shoulder strap. It has an adjustable EQ, which the JBL Boombox 3 Wifi lacks. Watch for: Less bass and depth than the W-King X20 and about 3dB quieter, and at maximum volume its mids and highs start to drown out the bass.
Buy the W-King X20S. Both are rated the same for sound quality, and it costs $238.96 less than the JBL Boombox 3 Wifi.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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
| JBL Boombox 3 Wifi | W-King X20S | |
|---|---|---|
| Price | $389.95 | $150.99 |
| Ranked | #26 of 113 in Boombox Size Portable Bluetooth Speakers | #30 of 113 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 43Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX7 |
| Maximum SPL | 111dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | - |
| Power Bank | Yes (USB-A, 5V/2A) | - |
| Power Input | AC Power cable | USB-C |
| Stereo | Yes | Partially |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 14.6 lbs (6.6 kg) | 13.8 lbs (6.25 kg) |
| Wi-Fi | Yes | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | - |
| App | No | Yes (W-KING) |
| EQ | No | Yes |
| USB Playback | No | Yes |
| Built-in Microphone | No | Yes |
| Amplifier Power | 200W AC / 140W battery | 140W RMS (180W peak) |
| Dimensions | 19.1” x 10.1” x 7.9” (484 x 256 x 200 mm) | 7.6”H x 17.4”W x 9.4”D (192 x 442 x 240 mm) |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters | 1x 6.5” subwoofer, 2x 1.1” tweeters, 2x passive radiator |
| Digital Aux Input | No | - |
| Bluetooth Version | 5.3 | 5.4 |
| Strap | No | Yes (detachable shoulder strap) |
| MicroSD Playback | - | Yes |
| FM Tuner | - | Yes |
Where the Ratings Come From
- JBL Boombox 3 Wifi: reviews by Alan Ross, Dominik and Mateusz Cholewa.
- W-King X20S: reviews by Mateusz Cholewa and Jagist.
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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