Short answer: the Bogasing M5. It ranks #55 of 142 medium speakers by sound quality at $45.59; the Ultimate Ears Wonderboom 2 ranks #89 and costs $80, so there is not much of a tradeoff to weigh.
What the Ultimate Ears Wonderboom 2 offers: IP67 rated and floats. Compact and light enough to toss in a bag. Watch for: Not stereo, barely any bass, recessed treble. Slightly boosted 93hz upper bass Dip at 9khz. 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 2019. Not technically a 360 speaker, only front and rear.
What the Bogasing M5 offers: Compact enough for a backpack side pocket at under 1.7 lb. Up to 30 hours of battery life. USB-C charging - no proprietary cable to lose. Watch for: Front/rear driver configuration. Use bass mode for the flattest response. Sounds thin in the midrange. Hot treble and rolled off bass in default mode. Treble a bit rolled off in bass mode.
Buy the Bogasing M5. It ranks higher for sound quality than the Ultimate Ears Wonderboom 2 and costs less, so the other one has nothing left to offer.
Battery life favors the Bogasing M5: rated for 30 hours against 12 hours for the Ultimate Ears Wonderboom 2.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Ultimate Ears Wonderboom 2 | Bogasing M5 | |
|---|---|---|
| Price | $80 | $45.59 |
| Ranked | #89 of 142 in Medium Size Portable Bluetooth Speakers | #55 of 142 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 82Hz | 61Hz |
| Battery Life | 12 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Maximum SPL | 88dB (measured by Alan Ross Reviews) | 96dB (measured by Alan Ross Reviews) |
| Power Input | Micro USB | - |
| Stereo | No | No (front/rear drivers) |
| Omnidirectional | Yes | Yes |
| Weight | 0.9 lbs (420 g) | 1.7 lbs (757 g) |
| IP Rating | IP67 | IPX7 |
| Bluetooth Version | 5.1 | 5.3 |
| Dimensions | 4.1" x 3.8" (104 x 95.3 mm) | 6.3" x 3" x 2.8" (160 x 76 x 71 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators | 30W system |
| TWS | Yes | Yes |
| Party Mode | No | - |
| App | No | - |
| EQ | No | - |
| Built-in Microphone | No | - |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Aux Input | - | Yes |
| MicroSD Playback | - | Yes |
| Power Bank | - | Yes (USB-A) |
| USB Playback | - | Yes |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | - | 40W |
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Prices on this page were last checked September 16, 2026 at 12:41 AM 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
Ultimate Ears Wonderboom 2: $80 Amazon eBay
Pros: IP67 rated and floats. Compact and light enough to toss in a bag. Measured bass extension of 82Hz (-10dB).
Cons: Not stereo, barely any bass, recessed treble. Slightly boosted 93hz upper bass Dip at 9khz. 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 2019. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Wonderboom 2 review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | 82Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| 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 |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 88dB (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Input | Micro USB |
| Stereo | No |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
- Reviews, Comparisons and Sound Samples
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Bogasing M5: $45.59 Amazon eBay
Pros: Compact enough for a backpack side pocket at under 1.7 lb. Up to 30 hours of battery life. USB-C charging - no proprietary cable to lose. Measured bass extension of 61Hz (-10dB).
Cons: Front/rear driver configuration. Use bass mode for the flattest response. Sounds thin in the midrange. Hot treble and rolled off bass in default mode. Treble a bit rolled off in bass mode.
Full Bogasing M5 review and specifications →
| Amplifier Power | 40W |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 61Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 6.3" x 3" x 2.8" (160 x 76 x 71 mm) |
| Drivers | 30W system |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) |
| MicroSD Playback | Yes |
| Omnidirectional | Yes |
| Power Bank | Yes (USB-A) |
| Stereo | No (front/rear drivers) |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 1.7 lbs (757 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons