Short answer: the Teufel Boomster 4, if you are buying new. The Teufel Boomster 2021 measures as well as it (#43 vs #42 of 85 boombox speakers, 3.4/5 vs 3.4/5) but is discontinued, so only consider it used; the Teufel Boomster 4 is still sold new.
The sound barely changed. Side by side, reviewers found the two very similar. The Boomster 4 is a little warmer and more open, with nicer, less harsh highs, but slightly less deep bass. Both use the same three-way layout of two tweeters, two midrange drivers and a woofer.
What is new: a treble control with a remote, USB-C charging, DAB+ alongside FM, and a claimed 23 hours of battery against 18. It also adds AAC and aptX HD.
What went backwards: water protection drops from IPX7 to IPX5. Both weigh 3.75 kg and neither has a power bank output. The Boomster 2021 is discontinued.
Buy the Teufel Boomster 4, since the Teufel Boomster 2021 is discontinued and only worth hunting down used.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Teufel Boomster 4 | Teufel Boomster 2021 | |
|---|---|---|
| Price | €249.99 | €250 Discontinued |
| Ranked | #42 of 85 in Boombox Size Portable Bluetooth Speakers | #43 of 85 in Boombox Size Portable Bluetooth Speakers |
| Drivers | 2x 20mm tweeters + 2x 65mm midrange drivers + 1x 110mm (4.3”) woofer, passive bass radiators | 1x 110mm (4.3”) woofer + 2x 65mm midrange drivers + 2x 20mm tweeters |
| Amplifier Power | 42W RMS | 42W RMS |
| Battery Life | 23 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| IP Rating | IPX5 | IPX7 |
| Bluetooth Version | 5.0 | 5.0 |
| Bluetooth Codecs | aptX HD, AAC, SBC | SBC |
| FM Tuner | Yes (plus DAB+) | Yes |
| Aux Input | Yes | Yes |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Power Bank | No | No |
| Power Input | USB-C | USB-C |
| Dimensions | 7.1”H x 14.6”W x 5.8”D (180 x 370 x 148 mm) | 14.6” x 7.1” x 5.8” (370 x 180 x 148 mm) |
| Weight | 8.3 lbs (3.75 kg) | 8.3 lbs (3.75 kg) |
| EQ | Yes (treble control) | No |
| App | No | No |
| Strap | No | No |
| Party Mode | - | No |
| USB Playback | - | No |
| Built-in Microphone | - | No |
| Discontinued | - | Yes |
| Digital Aux Input | - | No |
Related Speaker Comparisons
More top alternatives to Teufel Boomster 4:
- Earfun Uboom X vs Teufel Boomster 4
- Harman Kardon Go + Play 3 vs Teufel Boomster 4
- Bugani Brief Pro vs Teufel Boomster 4
- Harman Kardon Onyx Studio 7 vs Teufel Boomster 2021
- Harman Kardon Onyx Studio 9 vs Teufel Boomster 2021
Prices on this page were last checked September 26, 2026 at 11:14 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
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 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 2021: €250 Discontinued eBay
Newer model: the Teufel Boomster 4, ranked higher, rated 3.4/5.
Pros: Teufel Boomster 2021 uses 1x 110mm (4.3”) woofer + 2x 65mm midrange drivers + 2x 20mm tweeters. Its 3.75 kg, claimed 18 hours (Manufacturer specified) battery life, IPX7 protection, aux input and stereo playback make it a practical option for its intended room or portable use.
Cons: There is no companion app. No EQ adjustment. Discontinued.
Full Teufel Boomster 2021 review and specifications →
| Amplifier Power | 42W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 14.6” x 7.1” x 5.8” (370 x 180 x 148 mm) |
| Discontinued | Yes |
| Drivers | 1x 110mm (4.3”) woofer + 2x 65mm midrange drivers + 2x 20mm tweeters |
| EQ | No |
| FM Tuner | Yes |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 8.3 lbs (3.75 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- Teufel Boomster 2021 vs Teufel Boomster NG (2017)
- Teufel Boomster 2021 vs Soundcore Boom 2 Plus
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