Short answer: the Ultimate Ears Wonderboom 3 if it will get dropped, otherwise the Teufel Rockster Go, though neither ranks well in its class. The Wonderboom 3 is IP67 rated, floats and is rated to survive a 5 ft drop onto hard surfaces, but it is not stereo and has barely any bass. The Go matches the waterproofing and adds Dynamore width, yet reviewers found it muffled with rolled off treble. Both are rated below 3.0/5 among the 164 medium speakers; for better sound, the Earfun Uboom L ranks #2 at $49.79.
Buy the Ultimate Ears Wonderboom 3. It is rated higher for sound quality, and the Teufel Rockster Go is discontinued, so it is only available used.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Teufel Rockster Go | Ultimate Ears Wonderboom 3 | |
|---|---|---|
| Price | €83.00 Discontinued | $85.99 |
| Ranked | #126 of 164 in Medium Size Portable Bluetooth Speakers | #107 of 164 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Battery Life | 12 hours (Manufacturer specified) | 14 hours (Manufacturer specified) |
| IP Rating | IPX7 | IP67 |
| Weight | 1.5 lbs (700 g) | 0.9 lbs (420 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.0 | 5.2 |
| Bluetooth Codecs | aptX, SBC | SBC |
| Dimensions | 8.3” x 3.9” x 3.9” (210 x 100 x 100 mm) | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 2x 45mm full-range drivers + 1x passive radiator | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| TWS | Yes | Yes |
| Party Mode | Yes (Party Link, 2 devices) | No |
| Built-in Microphone | Yes | No |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| Digital Aux Input | No | No |
| App | No | No |
| EQ | No | No |
| Power Input | Micro USB | Micro USB |
| Bass Extension (-10dB) | - | 76Hz |
| Bluetooth Latency | - | 166ms |
| Maximum SPL | - | 87dB (measured by Alan Ross Reviews) |
| Power Bank | - | No |
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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
Teufel Rockster Go: €83.00 Discontinued eBay
Newer model: the Teufel Rockster Go 2, ranked higher, rated 3.2/5.
Pros: Clear mid-range with bright treble, wide soundstage via Dynamore processing, IP67 waterproof and durable, solid battery life, compact design with carrying strap
Cons: Rolled off treble, muffled sound, mids sound strange. Bass not very deep. Only available in Europe. Discontinued.
Full Teufel Rockster Go review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | aptX, SBC |
| Bluetooth Version | 4.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.3” x 3.9” x 3.9” (210 x 100 x 100 mm) |
| Drivers | 2x 45mm full-range drivers + 1x passive radiator |
| EQ | No |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | Yes (Party Link, 2 devices) |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.5 lbs (700 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 Rockster Go vs Sony SRS-XB30
- Teufel Rockster Go vs Soundcore Flare 2
- Teufel Rockster Go vs Marshall Emberton II
- Teufel Rockster Go vs Marshall Emberton III
- Teufel Rockster Go vs TDK A33
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- Teufel Rockster Go vs Tribit Stormbox Mini+
- See all 20 comparisons
Ultimate Ears Wonderboom 3: $85.99 Amazon eBay
Newer model: the Ultimate Ears Wonderboom 4, ranked higher, rated 2.9/5.
Pros: IP67 rated, floats, and is rated to survive a 5 ft drop onto hard surfaces. 14 hour battery: longer than the Wonderboom 2. Measured bass extension of 76Hz (-10dB).
Cons: Not stereo, barely any bass. Boosted 93Hz upper bass. Cuts bass heavily at high volume. You can tell from the micro USB that they are just feeding you the same crap hardware over and over, this is inexcusable for a product released in 2022. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Wonderboom 3 review and specifications →
| App | No |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 76Hz |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 166ms |
| Bluetooth Version | 5.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 87dB (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Bank | No |
| Power Input | Micro USB |
| Stereo | No |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: The biggest upgrade since time began! 💪 More from alanrossreviews →
- Jay’s Straight Up Reviews & More: JBL Flip 6 vs Ultimate Ears Wonderboom 3 (Indoor Mode)⚔️ Battle of the Handheld Bluetooth Speakers. More from JaysStraightUpReviews →
- Alan Ross Reviews: Tribit Stormbox Flow has deeper bass than the Bose Flex but………..
- Danny Pops: Best Outdoor Bluetooth Speaker? Wonderboom 3 VS Sony XB-13 More from DannyPops →
- Head-to-Head Comparisons
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