Short answer: the Harman Kardon Luna 2 if sound quality matters most, the Tribit Xsound Go if price matters most. The Harman Kardon Luna 2 ranks #25 of 177 medium speakers, rated 4.1/5, at $199.95. The Tribit Xsound Go ranks #101, rated 3.1/5, at $34.99, $164.96 cheaper.
The Harman Kardon Luna 2 is the better-sounding choice. A stylish waterproof speaker with clear, spacious mids, tight bass that stays clean at volume, and stereo pairing with a second unit. The catch: Treble can sound bright and edgy, and it loses more output off-axis than some rivals.
The Tribit Xsound Go is the longer-running, lighter pick. A very light, inexpensive waterproof stereo speaker with long battery life for travel and casual listening. It is rated for 24 hours of battery against 12 for the Harman Kardon Luna 2. At 0.8 lbs (380 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. The tradeoff: Lacking quite a bit of bass compared to bigger speakers.
Buy the Harman Kardon Luna 2 when sound quality outweighs the price for you, and the Tribit Xsound Go when the price outweighs sound quality instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A stylish waterproof speaker with clear, spacious mids, tight bass that stays clean at volume, and stereo pairing with a second unit.
A very light, inexpensive waterproof stereo speaker with long battery life for travel and casual listening.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| Harman Kardon Luna 2 | Tribit Xsound Go | |
|---|---|---|
| Price | $199.95 | $34.99 |
| Ranked | #25 of 177 in Medium Size Portable Bluetooth Speakers | #101 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| 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) | Yes |
| IP Rating | IP67 | IPX7 |
| MicroSD Playback | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | No | - |
| Weight | 1.6 lbs (735 g) | 0.8 lbs (380 g) |
| Bluetooth Version | 5.4 | 5.3 |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) | 6.9” x 2.3” x 2.2” (175 x 59 x 56 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter | 2x 40mm full-range drivers + 1x passive radiator |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) | - |
| Amplifier Power | 40W (25W woofer + 15W tweeter) | 16W |
| Digital Aux Input | No | No |
| Strap | No | Yes (built-in strap) |
| Bass Extension (-10dB) | - | 83Hz |
| Maximum SPL | - | 98dB (measured by Alan Ross Reviews) |
| Built-in Microphone | - | Yes |
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