Short answer: the Harman Kardon Luna 2. It ranks #25 of 177 medium speakers by sound quality, rated 4.1/5, at $199.95. The Walla Sound ranks #163, rated 2.2/5, at $49.99, $149.96 cheaper, not enough of a saving to outweigh the sound-quality gap.
The Harman Kardon Luna 2 is the better-sounding, longer-running choice. A stylish waterproof speaker with clear, spacious mids, tight bass that stays clean at volume, and stereo pairing with a second unit. It is rated for 12 hours of battery against 8 for the Walla Sound. It is rated IP67 against IPX5 for the Walla Sound. It has an adjustable EQ, which the Walla Sound lacks. The tradeoff: Treble can sound bright and edgy, and it loses more output off-axis than some rivals.
The Walla Sound is the lighter choice. A small shockproof speaker with an aux input, microSD playback and a built in microphone. At 0.7 lbs (300 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: No bass, gets distorted when turned up.
Buy the Harman Kardon Luna 2. It is rated higher for sound quality, and the $149.96 saving on the Walla Sound is not enough to make up the difference.
Want more options? Browse the full 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 small shockproof speaker with an aux input, microSD playback and a built in microphone.
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Specifications Side By Side
| Harman Kardon Luna 2 | Walla Sound | |
|---|---|---|
| Price | $199.95 | $49.99 |
| Ranked | #25 of 177 in Medium Size Portable Bluetooth Speakers | #163 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| EQ | Yes (4 presets + custom) | No |
| IP Rating | IP67 | IPX5 |
| MicroSD Playback | No | Yes |
| Power Input | USB-C | Micro USB |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | No | - |
| Weight | 1.6 lbs (735 g) | 0.7 lbs (300 g) |
| Bluetooth Version | 5.4 | 5.0 |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) | 2.7” x 2.7” x 6.3” (68 x 68 x 160 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter | 30mm metal diaphragm driver |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) | - |
| Amplifier Power | 40W (25W woofer + 15W tweeter) | 10W (2 x 5W) |
| Digital Aux Input | No | No |
| Strap | No | - |
| Bass Extension (-10dB) | - | ~90Hz |
| Built-in Microphone | - | Yes |
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