Short answer: the Ultimate Ears Megaboom 4, if you are buying new. The Xiaomi Mi Portable ranks higher than it (#75 vs #159 of 164 medium speakers, 3.4/5 vs 2.1/5) but is discontinued, so only consider it used; the Ultimate Ears Megaboom 4 is still sold new at $200.
The Xiaomi Mi Portable is the better-sounding, lighter choice. Good battery life for a 16W speaker: around 12 hours at moderate volume. At 0.8 lbs (373 g) it weighs much less than the Ultimate Ears Megaboom 4 at 2.4 lbs (1.1 kg). It keeps a wired aux input, which the Ultimate Ears Megaboom 4 lacks. It plays in stereo from a single unit, unlike the Ultimate Ears Megaboom 4. Watch for: A bit of a sharp treble.
The Ultimate Ears Megaboom 4 is the longer-running option. IP67 rated, floats, and finally uses USB-C charging. It is rated for 20 hours of battery against 13 for the Xiaomi Mi Portable. The tradeoff: A lot of distortion at higher volumes.
Buy the Ultimate Ears Megaboom 4 if you want one new; the Xiaomi Mi Portable is discontinued, so only look for it used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Xiaomi Mi Portable | Ultimate Ears Megaboom 4 | |
|---|---|---|
| Price | $55 Discontinued | $200 |
| Ranked | #75 of 164 in Medium Size Portable Bluetooth Speakers | #159 of 164 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 13 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Weight | 0.8 lbs (373 g) | 2.4 lbs (1.1 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.1 |
| Dimensions | 8.4” x 2.9” x 2.9” (213 x 74 x 74 mm) | 3.4” x 3.4” x 8.9” (87 x 87 x 225 mm) |
| Frequency Response | 80Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 16W | - |
| Aux Input | Yes (3.5mm) | No |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | No |
| Power Input | USB-C (5V/1A) | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| TWS | Yes | Yes |
| Drivers | 2x 57mm full-range drivers + 2x passive radiators | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| IP Rating | IPX7 | IP67 |
| Digital Aux Input | No | No |
| EQ | Yes | Yes (via app) |
| App | No | Yes |
| Party Mode | - | Yes (PartyUp up to 50 speakers) |
| Maximum SPL | - | 91dB (Manufacturer specified) |
| Strap | - | Yes (built-in loop) |
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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
Xiaomi Mi Portable: $55 Discontinued Amazon eBay
Pros: Good battery life for a 16W speaker: around 12 hours at moderate volume. USB-C charging, stereo pairing support.
Cons: A bit of a sharp treble. Discontinued.
Full Xiaomi Mi Portable review and specifications →
| Amplifier Power | 16W |
|---|---|
| App | No |
| Aux Input | Yes (3.5mm) |
| Battery Life | 13 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.4” x 2.9” x 2.9” (213 x 74 x 74 mm) |
| Drivers | 2x 57mm full-range drivers + 2x passive radiators |
| EQ | Yes |
| Frequency Response | 80Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Power Input | USB-C (5V/1A) |
| Stereo | Yes |
| TWS | Yes |
| Weight | 0.8 lbs (373 g) |
- Links
- Reviews, Comparisons and Sound Samples
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Ultimate Ears Megaboom 4: $200 Amazon eBay
Older model: the Ultimate Ears Megaboom 3 (ranked higher, rated 3/5).
Pros: IP67 rated, floats, and finally uses USB-C charging. 20 hour battery life. ‘PartyUp’ feature syncs multiple UE speakers together.
Cons: A lot of distortion at higher volumes. Rolled off treble. Not very loud. They really screwed this up
Full Ultimate Ears Megaboom 4 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 3.4” x 3.4” x 8.9” (87 x 87 x 225 mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 91dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 2.4 lbs (1.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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