Short answer: the Harman Kardon Luna 2 for better sound quality, the Soundcore 2 for the lower price. The Harman Kardon Luna 2 ranks #25 of 177 medium speakers, rated 4.1/5, at $199.95. The Soundcore 2 ranks #105, rated 3.0/5, at $29.98, $169.97 cheaper.
The Harman Kardon Luna 2 is the better-sounding option. 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 Soundcore 2 lacks. It charges over USB-C rather than Micro USB. Watch for: Treble can sound bright and edgy, and it loses more output off-axis than some rivals.
The Soundcore 2 is the longer-running, lighter choice. A cheap, light waterproof stereo speaker with a long rated battery, an aux input and pairing with a second unit. It is rated for 24 hours of battery against 12 for the Harman Kardon Luna 2. At 0.7 lbs (318 g) it weighs much less than the Harman Kardon Luna 2 at 1.6 lbs (735 g). It keeps a wired aux input, which the Harman Kardon Luna 2 lacks. Watch for: Bass is specified only down to 70Hz, so the low end is limited.
Buy the Harman Kardon Luna 2 when sound quality outweighs the price for you, and the Soundcore 2 when the price outweighs sound quality instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A stylish waterproof speaker with clear, spacious mids, tight bass that stays clean at volume, and stereo pairing with a second unit.
A cheap, light waterproof stereo speaker with a long rated battery, an aux input and pairing with a second unit.
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Specifications Side By Side
| Harman Kardon Luna 2 | Soundcore 2 | |
|---|---|---|
| Price | $199.95 | $29.98 |
| Ranked | #25 of 177 in Medium Size Portable Bluetooth Speakers | #105 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| EQ | Yes (4 presets + custom) | No |
| IP Rating | IP67 | IPX7 |
| MicroSD Playback | No | - |
| Power Input | USB-C | Micro USB |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | No | - |
| Weight | 1.6 lbs (735 g) | 0.7 lbs (318 g) |
| Bluetooth Version | 5.4 | 5.0 |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) | 6.6” x 1.9” x 2.2” (168 x 47 x 56 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter | 2x 38mm fullrange |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) | 70Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 40W (25W woofer + 15W tweeter) | 12W |
| Digital Aux Input | No | No |
| Strap | No | No |
| Built-in Microphone | - | No |
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