Short answer: the W-King X20. It ranks #37 of 89 boombox speakers by sound quality (rated 3.5/5); the Teufel Boomster 4 ranks #44 (rated 3.4/5).
Why pick the W-King X20: 200W RMS output with 330W peak power, 112dB max volume, exceptional 24-hour battery life with power bank, IPX6 waterproof, EQ with app control and button modes, 7.5-inch subwoofer, Bluetooth 5.3, dual pairing, MicroSD and USB playback, AUX input, TWS stereo mode with 240W combined. The tradeoff: Rising frequency response but upper treble rolled off, 700Hz and 1.2kHz peaks.
Why pick the Teufel Boomster 4: Warmer and more open than the Boomster 2021 it replaces, with nicer, less harsh highs, a wide stereo image from its three-way layout (two 20mm tweeters, two 65mm midrange drivers and a 110mm woofer with passive radiators) and good detail. The tradeoff: Side by side with the Boomster 2021 the sound barely changed, and it has a little less deep bass.
Buy the W-King X20. It is rated higher for sound quality than the Teufel Boomster 4.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| W-King X20 | Teufel Boomster 4 | |
|---|---|---|
| Price | $219.98 after coupon | €249.99 |
| Ranked | #37 of 89 in Boombox Size Portable Bluetooth Speakers | #44 of 89 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (W-King app) | No |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | ~42Hz | - |
| EQ | Yes (App + button modes) | Yes (treble control) |
| IP Rating | IPX6 | IPX5 |
| Maximum SPL | 112dB (measured by Alan Ross Reviews) | - |
| MicroSD Playback | Yes | - |
| Power Bank | Yes (USB-A) | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | aptX HD, AAC, SBC |
| Party Mode | No | - |
| Built-in Microphone | No | - |
| Amplifier Power | 330W peak / 200W RMS | 42W RMS |
| Dimensions | 19.9” x 8.5” x 10.6” (506 x 217 x 270 mm) | 7.1”H x 14.6”W x 5.8”D (180 x 370 x 148 mm) |
| Drivers | 7.5” subwoofer + drivers | 2x 20mm tweeters + 2x 65mm midrange drivers + 1x 110mm (4.3”) woofer, passive bass radiators |
| Weight | 15.9 lbs (7200 g) | 8.3 lbs (3.75 kg) |
| Digital Aux Input | No | - |
| Battery Life | 24 hours (Manufacturer specified) | 23 hours (Manufacturer specified) |
| Bluetooth Version | 5.4 | 5.0 |
| FM Tuner | - | Yes (plus DAB+) |
| Strap | - | No |
Related Speaker Comparisons
How W-King X20 compares with other leading options:
- Earfun Uboom X vs W-King X20
- Tribit Stormbox Blast vs W-King X20
- Harman Kardon Go + Play 3 vs W-King X20
- JBL Partybox Encore 2 vs W-King X20
- JBL PartyBox On-The-Go 2 Plus vs W-King X20
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
W-King X20: $219.98 after coupon Amazon eBay
Pros: 200W RMS output with 330W peak power, 112dB max volume, exceptional 24-hour battery life with power bank, IPX6 waterproof, EQ with app control and button modes, 7.5-inch subwoofer, Bluetooth 5.3, dual pairing, MicroSD and USB playback, AUX input, TWS stereo mode with 240W combined. Measured bass extension of ~42Hz (-10dB).
Cons: Rising frequency response but upper treble rolled off, 700Hz and 1.2kHz peaks
Full W-King X20 review and specifications →
| Amplifier Power | 330W peak / 200W RMS |
|---|---|
| App | Yes (W-King app) |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~42Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 19.9” x 8.5” x 10.6” (506 x 217 x 270 mm) |
| Drivers | 7.5” subwoofer + drivers |
| EQ | Yes (App + button modes) |
| IP Rating | IPX6 |
| Maximum SPL | 112dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 15.9 lbs (7200 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Soundcore Boom 2 Plus Review - worst boombox speaker under $400? More from alanrossreviews →
- Alan Ross Reviews: pound for pound battle! WKing X20 D20 vs Stormbox Blast! OMG its a shocker!
- Alan Ross Reviews: W-King X20 JBL Boombox 3 killer! this should be illegal! - I was shocked!
- Jagist reviews: W-king X20 Vs Jbl Encore!!! 😁😁😁 More from Jagistreviews →
- Jagist reviews: W-king X20 Vs Skullcandy Barrel XT!!! 🤔😋
- Mateusz Cholewa: Soundcore RAVE 3 🤗v🆚s W- KING X20🎶 More from Mateusz Cholewa →
- Jay’s Straight Up Reviews & More: New! W-King X20 vs JBL Boombox 3 🛜 Head to Head 🔋Battery Powered 📊Custom EQ - Links In Description More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: W-King X20 vs Tribit Stormbox Blast 🍿 Garage Battle of Boombox Speakers 🍻Custom & Standard EQ’s
- Jagist reviews: LG xboom Stage 301 Vs W-king X20!!!
- Techder Audios: W-king X20 VS Zealot S95 DEEP BASS VS DEEPER & LOUDER BASS?! More from techderaudios →
- Jagist reviews: LG xboom Stage 301 Vs W-king X20!!!
- Jagist reviews: W-king X20 Vs Gemini GRV-650L!!! 😍😍😍
- Jagist reviews: Bugani Boost Max Vs W-king X20!!! 😍😍😍
- Jay’s Straight Up Reviews & More: W-King X20 vs Zealot S78 Bluetooth Boombox Battle Outdoor Tailgater Special 🚗 Let the Whoopin’ Begin
- Head-to-Head Comparisons
Teufel Boomster 4: €249.99 Teufel eBay
Older models: the Teufel Boomster 2021 (ranked lower, rated 3.4/5) and the Teufel Boomster NG (2017) (ranked lower, rated 3.2/5).
Pros: Warmer and more open than the Boomster 2021 it replaces, with nicer, less harsh highs, a wide stereo image from its three-way layout (two 20mm tweeters, two 65mm midrange drivers and a 110mm woofer with passive radiators) and good detail. Its new treble control and remote let you tame the top end. DAB+ and FM radio, a claimed 23 hours of battery at medium volume, IPX5, Bluetooth 5.0 with AAC and aptX HD, multipoint, an aux input, USB-C charging and stereo pairing.
Cons: Side by side with the Boomster 2021 the sound barely changed, and it has a little less deep bass. Against the Harman Kardon Go + Play 3 it sounds sharper and thinner, with weaker bass and a less natural stereo image, and its bass drops off at full volume. At 3.75 kg it is heavy for its size, it has no power bank output, and IPX5 is a step down from the older model’s IPX7.
Full Teufel Boomster 4 review and specifications →
| Amplifier Power | 42W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 23 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | aptX HD, AAC, SBC |
| Bluetooth Version | 5.0 |
| Dimensions | 7.1”H x 14.6”W x 5.8”D (180 x 370 x 148 mm) |
| Drivers | 2x 20mm tweeters + 2x 65mm midrange drivers + 1x 110mm (4.3”) woofer, passive bass radiators |
| EQ | Yes (treble control) |
| FM Tuner | Yes (plus DAB+) |
| IP Rating | IPX5 |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 8.3 lbs (3.75 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Mateusz Cholewa: Nowy TEUFEL Boomster 4 UNBOXING vs Boomster 3 Review in subtitles More from Mateusz Cholewa →
- Mateusz Cholewa: TEUFEL Boomster 4 vs HK Go Plus Play 3 & Opinion in Subtitles
- Dominik Reviews: Teufel BOOMSTER 4 vs BOOMSTER 2021 - No difference? Sound Battle! More from Dominik Reviews →
- Dominik Reviews: Teufel BOOMSTER 4 vs JBL Xtreme 4 - Not great for the size? Sound Test
- Dominik Reviews: Teufel BOOMSTER 4 vs Earfun UBOOM X - BASS!! - Sound Test
- Dominik Reviews: Teufel BOOMSTER 4 vs Bugani Brief Pro - Cheaper and Better! Sound Test
- Head-to-Head Comparisons
- Teufel Boomster 4 vs Teufel Boomster 2021
- Teufel Boomster 4 vs JBL Authentics 300
- Teufel Boomster 4 vs Soundcore Boom 2 Plus
- Teufel Boomster 4 vs Onn Medium Party Speaker Gen 2
- Teufel Boomster 4 vs Tribit Stormbox Blast 2
- Teufel Boomster 4 vs JBL Partybox On the Go
- Teufel Boomster 4 vs Bugani Brief Pro
- Teufel Boomster 4 vs JBL Boombox 3
- See all 26 comparisons