Short answer: the Harman Kardon Luna 2. It ranks #25 of 177 medium speakers by sound quality (rated 4.1/5) at $199.95 and is still sold new; the Xdobo X8 ranks #158 (rated 2.3/5) and is discontinued, so it is only an option used.
The Harman Kardon Luna 2 is the better-sounding, tougher option. 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 IP67 against IPX5 for the Xdobo X8. The tradeoff: Treble can sound bright and edgy, and it loses more output off-axis than some rivals.
Why pick the Xdobo X8: A cheap splash resistant speaker that plays loud for background music outdoors, with aux and microSD playback. It keeps a wired aux input, which the Harman Kardon Luna 2 lacks. The catch: The single full-range driver is the limitation.
Buy the Harman Kardon Luna 2. It is rated higher for sound quality; the Xdobo X8 is no longer sold new.
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.
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 | Xdobo X8 | |
|---|---|---|
| Price | $199.95 | $35 Discontinued |
| Ranked | #25 of 177 in Medium Size Portable Bluetooth Speakers | #158 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| EQ | Yes (4 presets + custom) | Yes (multiple modes) |
| IP Rating | IP67 | IPX5 |
| MicroSD Playback | No | Yes |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | No | - |
| Weight | 1.6 lbs (735 g) | 1.9 lbs (860 g) |
| Bluetooth Version | 5.4 | 5.0 |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) | 8.7” x 3.7” x 2.8” (220 x 95 x 72 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter | 66mm full-range driver |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) | - |
| Amplifier Power | 40W (25W woofer + 15W tweeter) | 60W |
| Digital Aux Input | No | No |
| Strap | No | - |
| Bass Extension (-10dB) | - | ~65Hz |
| Built-in Microphone | - | Yes |
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