Short answer: the Teufel Boomster Go on sound quality, the JBL Go 4 on size and price. The Boomster Go ranks #7 of 54 with pretty deep, quite balanced bass for its size, though distortion is audible above roughly 75% volume and it turns unclear and tinny at max volume up close. The Go 4 ranks #28 and has not much bass past about 50% volume.
Buy the JBL Go 4 if you want one new; the Teufel Boomster Go is discontinued, so only look for it used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| JBL Go 4 | Teufel Boomster Go | |
|---|---|---|
| Price | $49.95 | €80 Discontinued |
| Ranked | #28 of 54 in Small Size Portable Bluetooth Speakers | #7 of 54 in Small Size Portable Bluetooth Speakers |
| App | Yes | No |
| Bass Extension (-10dB) | ~82Hz | - |
| Battery Life | 7 hours (Manufacturer specified) | 10 hours (Manufacturer specified) |
| EQ | Yes | No |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (Auracast) | No |
| Power Bank | No | No |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | Pointing up |
| TWS | Yes | Yes |
| Weight | 0.4 lbs (190 g) | 0.8 lbs (355 g) |
| Aux Input | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| Bluetooth Version | 5.3 | 4.0 |
| Frequency Response | 90Hz - 20kHz (Manufacturer specified) | 65Hz - 20kHz (Manufacturer specified) |
| Dimensions | 3.7” x 3” x 1.7” (94.3 x 75.7 x 42.2 mm) | 4.2” x 4” x 1.8” (107 x 102 x 46 mm) |
| Charging Time | 3 hours | 2.5 hours |
| Drivers | 45mm | 50mm woofer + 20mm tweeter |
| Amplifier Power | 4.2W | 10W |
| Digital Aux Input | No | No |
| Strap | Yes (built-in loop) | - |
Related Speaker Comparisons
More worthwhile head-to-heads for Teufel Boomster Go:
- Tribit Stormbox Micro 2 vs Teufel Boomster Go
- Soundcore Boom Go 3i vs Teufel Boomster Go
- Tribit Stormbox Micro vs Teufel Boomster Go
- Tribit Stormbox Micro 3 vs Teufel Boomster Go
- Teufel Boomster Go vs Soundcore Mini 3 Pro
Prices on this page were last checked October 4, 2026 at 9:58 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 Go 4: $49.95 Amazon B&H Photo Video eBay
Newer model: the JBL Go 5, ranked higher, rated 3.2/5.
Pros: A little more bass than the Go 3 and they fixed the strange mids peak. Measured bass extension of ~82Hz (-10dB).
Cons: Not much bass at all, especially with electronic/bass-heavy tracks pushed past ~50% volume. Midrange can sound grainy and treble a bit sizzly; loses clarity at higher volumes.
Full JBL Go 4 review and specifications →
| Amplifier Power | 4.2W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | ~82Hz |
| Battery Life | 7 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Charging Time | 3 hours |
| Digital Aux Input | No |
| Dimensions | 3.7” x 3” x 1.7” (94.3 x 75.7 x 42.2 mm) |
| Drivers | 45mm |
| EQ | Yes |
| Frequency Response | 90Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Omnidirectional | Pointing up |
| Party Mode | Yes (Auracast) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.4 lbs (190 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Stereo Specs: JBL GO 4 vs JBL GO 3 : Is there more bass or not?Unboxing,Features,Specs,Sound Test & Comparison !
- StereoSpecs: JBL GO 4 vs JBL GO 3 : Worth the upgrade?
- Oluv Patreon: JBL Go 4 - first impressions (how to waste your money) More from Oluv’Sone →
- Storytripper HD: JBL GO 4 vs TRIBIT MICRO 2 vs KLIPSCH AUSTIN vs SONY SRS-XB100 More from storytripperhd →
- GYMCADDY: Soundcore Select 4 Go Vs JBL Clip 5 And JBL Go 4 More from GYMCADDY →
- M1MTechChannel: Welche JBL Partybox ist die BESTE ? Alle Partyboxen im Vergleich | 2026 More from M1MTechChannel →
- Head-to-Head Comparisons
Teufel Boomster Go: €80 Discontinued eBay
Pros: Pretty deep bass and quite balanced overall for the size.
Cons: Distortion becomes audible above roughly 75% volume; at max volume up close it gets unclear and tinny. Discontinued.
Full Teufel Boomster Go review and specifications →
| Amplifier Power | 10W |
|---|---|
| App | No |
| Aux Input | No |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.0 |
| Built-in Microphone | Yes |
| Charging Time | 2.5 hours |
| Digital Aux Input | No |
| Dimensions | 4.2” x 4” x 1.8” (107 x 102 x 46 mm) |
| Drivers | 50mm woofer + 20mm tweeter |
| EQ | No |
| Frequency Response | 65Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | Pointing up |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 0.8 lbs (355 g) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
- Teufel Boomster Go vs Tribit Stormbox Micro 3
- Teufel Boomster Go vs Soundcore Mini 3 Pro
- Teufel Boomster Go vs Tribit Stormbox Micro
- Teufel Boomster Go vs Soundcore Mini 3
- Teufel Boomster Go vs Marshall Willen II
- Teufel Boomster Go vs Soundcore Boom Go 3i
- Teufel Boomster Go vs Ultimate Ears Miniroll
- Teufel Boomster Go vs Tribit Stormbox Micro 2
- See all 22 comparisons