JBL Boombox 4 vs W-King X20S

Last updated: September 30, 2026

Short answer: the JBL Boombox 4 for better sound quality, the W-King X20S for the lower price. The JBL Boombox 4 ranks #20 of 89 boombox speakers, rated 4.0/5, at $549.95. The W-King X20S ranks #29, rated 3.8/5, at $150.99, $398.96 cheaper.

JBL Boombox 4 vs W-King X20S

Why pick the JBL Boombox 4: Pretty insane output capability for the size. The catch: Pretty overpriced for the category.

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. The catch: 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 JBL Boombox 4 if sound quality matters more than the price. Buy the W-King X20S if the price matters more than sound quality.

Still deciding? The full Portable Bluetooth rankings cover every ranked option.

Buy the JBL Boombox 4 at Amazon ($549.95) →Buy the W-King X20S at AliExpress ($150.99) →

Specifications Side By Side

JBL Boombox 4 W-King X20S
Price$549.95$150.99
Ranked#20 of 89 in Boombox Size Portable Bluetooth Speakers#29 of 89 in Boombox Size Portable Bluetooth Speakers
AppYes-
Aux InputNoYes
Bass Extension (-10dB)41Hz-
Battery Life28 hours (Manufacturer specified)-
EQYes (7 band)-
IP RatingIP68IPX7
Bluetooth LatencyAAC 144ms, SBC 48ms-
Maximum SPL115dB (measured by Alan Ross Reviews)-
Party ModeYes (Auracast)-
Power InputAC Power cord-
Removable BatteryYes-
StereoYes-
OmnidirectionalNoNo
Weight13.2 lbs (5.98 kg)13.8 lbs (6.25 kg)
BluetoothYesYes
Bluetooth CodecsSBC, LC3, AAC-
Bluetooth Version5.45.4
Built-in MicrophoneNoYes
Power BankYes (USB-C, up to 30W)-
TWSYesYes
Digital Aux InputYes (USB-C)-
USB PlaybackNoYes
FM TunerNoYes
Microphone InputNo-
MicroSD PlaybackNoYes
Amplifier Power210W AC / 200W battery140W RMS (180W peak)
Dimensions20.1” x 10.2” x 8.3” (510 x 260 x 210 mm)-
Drivers2x 123mm woofers + 2x 20mm tweeters with passive radiators-
StrapNoYes (detachable shoulder strap)
Buy the JBL Boombox 4 at Amazon ($549.95) →Buy the W-King X20S at AliExpress ($150.99) →

More top alternatives to JBL Boombox 4:

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.

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The Two Speakers In Full

JBL Boombox 4: $549.95 Amazon B&H Photo Video eBay

JBL Boombox 4 ranking card

Older models: the JBL Boombox 3 (ranked lower, rated 3.8/5), the JBL Boombox 2 (ranked lower, rated 3.5/5) and the JBL Boombox (ranked lower, rated 2.9/5).

Pros: Pretty insane output capability for the size. IP68 protection and Auracast pairing with other current JBL speakers. Measured bass extension of 41Hz (-10dB).

Cons: Pretty overpriced for the category. Better than the Boombox 3 mostly because there are more 7 EQ bands instead of just 3 and it can be better tuned. Try Oluv’s EQ for it. Out of the box sounds worse than the Boombox 3. No Aux input.

Full JBL Boombox 4 review and specifications →

Amplifier Power210W AC / 200W battery
AppYes
Aux InputNo
Bass Extension (-10dB)41Hz
Battery Life28 hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC, LC3, AAC
Bluetooth LatencyAAC 144ms, SBC 48ms
Bluetooth Version5.4
Built-in MicrophoneNo
Digital Aux InputYes (USB-C)
Dimensions20.1” x 10.2” x 8.3” (510 x 260 x 210 mm)
Drivers2x 123mm woofers + 2x 20mm tweeters with passive radiators
EQYes (7 band)
FM TunerNo
IP RatingIP68
Maximum SPL115dB (measured by Alan Ross Reviews)
MicroSD PlaybackNo
Microphone InputNo
OmnidirectionalNo
Party ModeYes (Auracast)
Power BankYes (USB-C, up to 30W)
Power InputAC Power cord
Removable BatteryYes
StereoYes
StrapNo
TWSYes
USB PlaybackNo
Weight13.2 lbs (5.98 kg)
Check current price at Amazon ($549.95) →Check current price at B&H Photo Video →Search eBay for JBL Boombox 4 →

W-King X20S: $150.99 AliExpress W-King eBay

W-King X20S ranking card

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 Power140W RMS (180W peak)
Aux InputYes
BluetoothYes
Bluetooth Version5.4
Built-in MicrophoneYes
FM TunerYes
IP RatingIPX7
MicroSD PlaybackYes
OmnidirectionalNo
StrapYes (detachable shoulder strap)
TWSYes
USB PlaybackYes
Weight13.8 lbs (6.25 kg)
Check current price at AliExpress ($150.99) →Check current price at W-King ($199.99) →Search eBay for W-King X20S →