Short answer: the Harman Kardon Luna. It ranks #26 of 164 medium speakers by sound quality (rated 4.0/5) at $290.99 and is still sold new; the Xiaomi Mi Portable ranks #75 (rated 3.4/5) and is discontinued, so it is only an option used.
The Harman Kardon Luna is the better-sounding choice. The sound is fairly balanced apart from the boosted bass. The catch: Boosted bass, and less detailed than higher-ranked speakers.
The Xiaomi Mi Portable is the 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 Harman Kardon Luna at 2.5 lbs (1.13 kg). It keeps a wired aux input, which the Harman Kardon Luna lacks. It has an adjustable EQ, which the Harman Kardon Luna lacks. Watch for: A bit of a sharp treble.
Buy the Harman Kardon Luna. It is rated higher for sound quality and still sold new, while the Xiaomi Mi Portable is discontinued.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Harman Kardon Luna | Xiaomi Mi Portable | |
|---|---|---|
| Price | $290.99 | $55 Discontinued |
| Ranked | #26 of 164 in Medium Size Portable Bluetooth Speakers | #75 of 164 in Medium Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | No | Yes (3.5mm) |
| Bass Extension (-10dB) | 57Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 13 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| EQ | No | Yes |
| IP Rating | IP67 | IPX7 |
| MicroSD Playback | No | - |
| Power Input | USB-C | USB-C (5V/1A) |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 2.5 lbs (1.13 kg) | 0.8 lbs (373 g) |
| Bluetooth Version | 5.3 | 5.0 |
| Dimensions | 8.3” x 3.1” x 3.1” (210 x 78 x 80 mm) | 8.4” x 2.9” x 2.9” (213 x 74 x 74 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter | 2x 57mm full-range drivers + 2x passive radiators |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 80Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 40W | 16W |
| Digital Aux Input | No | No |
| Built-in Microphone | - | Yes |
Related Speaker Comparisons
How Harman Kardon Luna compares with other leading options:
- Harman Kardon Luna vs Earfun Uboom L
- Soundcore Motion 300 vs Harman Kardon Luna
- Soundcore Motion+ vs Harman Kardon Luna
- Soundcore Boost “upgraded” 2021 vs Harman Kardon Luna
- Harman Kardon Luna vs Minirig 4
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
Harman Kardon Luna: $290.99 Amazon eBay
Newer model: the Harman Kardon Luna 2, ranked higher, rated 4.1/5.
Pros: Harman Kardon Luna uses 48mm x 90mm woofer, 20mm tweeter. Its 1.13 kg, claimed 12 hours (Manufacturer specified) battery life, IP67 protection and mono playback make it a practical option for its intended room or portable use. The sound is fairly balanced apart from the boosted bass. Measured bass extension of 57Hz (-10dB).
Cons: Bass is limited by its 57Hz specification. There is no companion app. No EQ adjustment. Boosted bass, and less detailed than higher-ranked speakers.
Full Harman Kardon Luna review and specifications →
| Amplifier Power | 40W |
|---|---|
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 57Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 8.3” x 3.1” x 3.1” (210 x 78 x 80 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| MicroSD Playback | No |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 2.5 lbs (1.13 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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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
- Head-to-Head Comparisons
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