Short answer: the Xiaomi Sound Outdoor. It ranks #43 of 142 medium speakers by sound quality at $54.99; the Ultimate Ears Megaboom 3 ranks #86 and costs $191.99, so there is not much of a tradeoff to weigh.
What the Xiaomi Sound Outdoor offers: Xiaomi Sound Outdoor uses 20W woofer, 10W tweeter + 2x passive radiators. Its 597 g, claimed 12 hours (Manufacturer specified) battery life, IP67 protection and mono playback make it a practical option for its intended room or portable use. Watch for: Its 60Hz - 20kHz (Manufacturer specified) specification points to limited deep-bass reach for the cabinet size. There is no companion app. No EQ adjustment.
What the Ultimate Ears Megaboom 3 offers: IP67 rated, floats, and survives drops from up to 1 meter. 20 hour battery life - about double most speakers this size. Watch for: Not stereo, barely any bass. 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 2018. Not technically a 360 speaker, only front and rear.
Buy the Xiaomi Sound Outdoor. It ranks higher for sound quality than the Ultimate Ears Megaboom 3 and costs less, so the other one has nothing left to offer.
If battery life is a priority, the Ultimate Ears Megaboom 3 is rated for 20 hours versus 12 hours for the Xiaomi Sound Outdoor.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Xiaomi Sound Outdoor | Ultimate Ears Megaboom 3 | |
|---|---|---|
| Price | $54.99 | $191.99 |
| Ranked | #43 of 142 in Medium Size Portable Bluetooth Speakers | #86 of 142 in Medium Size Portable Bluetooth Speakers |
| App | No | - |
| Battery Life | 12 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Built-in Microphone | Yes | - |
| EQ | No | - |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (Speakersync, up to 100 speakers) | Yes (PartyUp up to 50 speakers) |
| Power Input | USB-C | Micro USB |
| Stereo | No | No |
| Omnidirectional | No | Yes |
| TWS | Yes | - |
| Weight | 1.3 lbs (597 g) | 2 lbs (925 g) |
| Bluetooth Version | 5.4 | 4.2 |
| Dimensions | 7.7" x 2.7" x 2.6" (196.6 x 68 x 66 mm) | 3.4" x 8.9" x 3.4" (87 x 225 x 87 mm) |
| Drivers | 20W woofer, 10W tweeter + 2x passive radiators | 2x 50mm fullrange |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 60Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 30W | - |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Bass Extension (-10dB) | - | 70Hz |
| Maximum SPL | - | 98dB (measured by Alan Ross Reviews) |
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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
Xiaomi Sound Outdoor: $54.99 Amazon eBay
Pros: Xiaomi Sound Outdoor uses 20W woofer, 10W tweeter + 2x passive radiators. Its 597 g, claimed 12 hours (Manufacturer specified) battery life, IP67 protection and mono playback make it a practical option for its intended room or portable use.
Cons: Its 60Hz - 20kHz (Manufacturer specified) specification points to limited deep-bass reach for the cabinet size. There is no companion app. No EQ adjustment.
Full Xiaomi Sound Outdoor review and specifications →
| Amplifier Power | 30W |
|---|---|
| App | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.4 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.7" x 2.7" x 2.6" (196.6 x 68 x 66 mm) |
| Drivers | 20W woofer, 10W tweeter + 2x passive radiators |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Speakersync, up to 100 speakers) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.3 lbs (597 g) |
- Links
- Reviews, Comparisons and Sound Samples
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Ultimate Ears Megaboom 3: $191.99 Amazon eBay
Pros: IP67 rated, floats, and survives drops from up to 1 meter. 20 hour battery life - about double most speakers this size. Measured bass extension of 70Hz (-10dB).
Cons: Not stereo, barely any bass. 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 2018. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Megaboom 3 review and specifications →
| Bass Extension (-10dB) | 70Hz |
|---|---|
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 3.4" x 8.9" x 3.4" (87 x 225 x 87 mm) |
| Drivers | 2x 50mm fullrange |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 98dB (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | Micro USB |
| Stereo | No |
| Weight | 2 lbs (925 g) |
- Links
- Reviews, Comparisons and Sound Samples
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