Short answer: the W-King X20S. Both are rated 3.8/5 for sound quality (#29 and #25 of 89 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: Loudest speaker in the category. Watch for: Bass boosted.
What the W-King X20S does well: Clearer and smoother than the larger W-King X20 at about half its size and weight, and in side by side tests it held its own against the Harman Kardon Go + Play 3, with nicer, more exposed mids and more volume. Watch for: Less bass and depth than the 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.
Specifications Side By Side
| JBL Boombox 3 Wifi | W-King X20S | |
|---|---|---|
| Price | $389.95 | $150.99 |
| Ranked | #25 of 89 in Boombox Size Portable Bluetooth Speakers | #29 of 89 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 43Hz | - |
| Battery Life | 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 | - |
| Stereo | Yes | - |
| 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 | - |
| EQ | No | - |
| 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) | - |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters | - |
| Digital Aux Input | No | - |
| Bluetooth Version | 5.3 | 5.4 |
| Strap | No | Yes (detachable shoulder strap) |
| MicroSD Playback | - | Yes |
| FM Tuner | - | Yes |
Related Speaker Comparisons
More worthwhile head-to-heads for JBL Boombox 3 Wifi:
- Earfun Uboom X vs JBL Boombox 3 Wifi
- JBL Boombox 3 Wifi vs Tribit Stormbox Blast
- Harman Kardon Go + Play 3 vs JBL Boombox 3 Wifi
- JBL Boombox 3 Wifi vs JBL Partybox Encore 2
- JBL PartyBox On-The-Go 2 Plus vs JBL Boombox 3 Wifi
Prices on this page were last checked September 30, 2026 at 2:57 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
JBL Boombox 3 Wifi: $389.95 Amazon eBay
Pros: Loudest speaker in the category. Slightly better frequency response than the non-wifi version. Measured bass extension of 43Hz (-10dB).
Cons: Bass boosted. Dip at 160Hz
Full JBL Boombox 3 Wifi review and specifications →
| Amplifier Power | 200W AC / 140W battery |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 43Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 19.1” x 10.1” x 7.9” (484 x 256 x 200 mm) |
| Drivers | 1x 189mm subwoofer + 2x 81mm woofers + 2x 20mm tweeters |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 111dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A, 5V/2A) |
| Power Input | AC Power cable |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 14.6 lbs (6.6 kg) |
| Wi-Fi | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Dominik Reviews: JBL Partybox Encore 2 vs JBL Boombox 3 WiFi - Sound Test - Wide vs Narrow Soundstage! More from Dominik Reviews →
- Mateusz Cholewa: JBL Encore 2 Partybox Deep Bass 🆚 Jbl Boombox 3 WiFi 🎶 More from Mateusz Cholewa →
- Alan Ross Reviews: Not quite! JBL Authentics 300 review and sound test vs Boombox 3, Encore and Stormbox Blast More from alanrossreviews →
- Alan Ross Reviews: WiFi Edition: JBL Boombox 3 ultimate review! vs Boombox 3 Bluetooth edition
- Mateusz Cholewa: Soundcore Rave 3🧐 🆚 Jbl Boombox 3 WiFi
- Head-to-Head Comparisons
- JBL Boombox 3 Wifi vs JBL Boombox 3
- JBL Boombox 3 Wifi vs Harman Kardon Onyx Studio 5
- JBL Boombox 3 Wifi vs Harman Kardon Go + Play 2
- JBL Boombox 3 Wifi vs Ruimatech RM-10
- JBL Boombox 3 Wifi vs Hopestar A90
- JBL Boombox 3 Wifi vs JBL Boombox 4
- JBL Boombox 3 Wifi vs Tribit Stormbox Blast 2
- JBL Boombox 3 Wifi vs Zealot S89
- See all 80 comparisons
W-King X20S: $150.99 AliExpress W-King eBay
Pros: Clearer and smoother than the larger W-King X20 at about half its size and weight, and in side by side tests it held its own against the Harman Kardon Go + Play 3, with nicer, more exposed mids and more volume. 140W RMS (180W peak), IPX7, Bluetooth 5.4, a built-in microphone, TF card, USB and aux playback, FM radio, a carry handle and a shoulder strap.
Cons: Less bass and depth than the X20 and about 3dB quieter, and at maximum volume its mids and highs start to drown out the bass. With a flat EQ the bass is cut off, so it needs the bass boost. The JBL PartyBox Encore Essential 2 sounded better in a direct comparison. Sold direct from W-King in the US.
Full W-King X20S review and specifications →
| Amplifier Power | 140W RMS (180W peak) |
|---|---|
| Aux Input | Yes |
| Bluetooth | Yes |
| Bluetooth Version | 5.4 |
| Built-in Microphone | Yes |
| FM Tuner | Yes |
| IP Rating | IPX7 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13.8 lbs (6.25 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Jagist reviews: W-king X20 Vs W-king X20S!!! More from Jagistreviews →
- Jagist reviews: W-king X20s Vs Harman Kardon Go Plus Play 3!!!
- Mateusz Cholewa: 140W W-KING X20S vs 160W HK Go Plus Play 3 More from Mateusz Cholewa →
- Jagist reviews: Jbl Encore Essential 2 Vs W-king X20s!!!
- Jagist reviews: W-king X20s Vs Tribit Stormbox Blast!!!
- Head-to-Head Comparisons