Short answer: the Miatone Boompro. It ranks #16 of 179 medium speakers by sound quality, rated 4.2/5, at $35.99; the Harman Kardon Luna 2 ranks #25, rated 4.1/5, and costs $199.95, so there is little reason to consider the other one.
The Miatone Boompro is the longer-running, lighter option. A cheap waterproof speaker with very well balanced sound, even at full volume, and a 16 hour battery. It is rated for 16 hours of battery against 12 for the Harman Kardon Luna 2. At 1.1 lbs (500 g) it weighs noticeably less than the Harman Kardon Luna 2 at 1.6 lbs (735 g). Watch for: Slightly less bass extension than higher ranked speakers.
Why pick the Harman Kardon Luna 2: A stylish waterproof speaker with clear, spacious mids, tight bass that stays clean at volume, and stereo pairing with a second unit. It has an adjustable EQ, which the Miatone Boompro lacks. Watch for: Treble can sound bright and edgy, and it loses more output off-axis than some rivals.
Buy the Miatone Boompro. It is rated higher for sound quality than the Harman Kardon Luna 2 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Miatone Boompro | Harman Kardon Luna 2 | |
|---|---|---|
| Price | $35.99 | $199.95 |
| Ranked | #16 of 179 in Medium Size Portable Bluetooth Speakers | #25 of 179 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes |
| Aux Input | No | No |
| Battery Life | 16 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| EQ | No | Yes (4 presets + custom) |
| IP Rating | IPX7 | IP67 |
| Power Bank | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.1 lbs (500 g) | 1.6 lbs (735 g) |
| Drivers | Dual drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter |
| Digital Aux Input | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Lights | Yes | - |
| Dimensions | 7.3”H x 2.8”W x 2.8”D (185 x 71 x 71 mm) | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) |
| Amplifier Power | 36W | 40W (25W woofer + 15W tweeter) |
| Bluetooth Version | 5.3 | 5.4 |
| MicroSD Playback | - | No |
| USB Playback | - | No |
| Frequency Response | - | 58Hz - 20kHz (-6dB) (Manufacturer specified) |
| Strap | - | No |
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