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 LG Xboom Grab ranks #106, rated 3.0/5, at $100.98, $98.97 cheaper, which does not close the gap in sound quality.
The Harman Kardon Luna 2 is the better-sounding pick. 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 LG Xboom Grab is the longer-running option. A rugged waterproof speaker with elastic mounting straps, a long 20 hour battery, multipoint pairing and app room calibration. It is rated for 20 hours of battery against 12 for the Harman Kardon Luna 2. It supports AAC Bluetooth, which the Harman Kardon Luna 2 lacks. Watch for: Bass extension not as deep as the top speakers.
Buy the Harman Kardon Luna 2. It is rated higher for sound quality, and the $98.97 you would save on the LG Xboom Grab does not close the gap.
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 rugged waterproof speaker with elastic mounting straps, a long 20 hour battery, multipoint pairing and app room calibration.
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 | LG Xboom Grab | |
|---|---|---|
| Price | $199.95 | $100.98 |
| Ranked | #25 of 177 in Medium Size Portable Bluetooth Speakers | #106 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Battery Life | 12 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | AAC, SBC |
| EQ | Yes (4 presets + custom) | Yes |
| IP Rating | IP67 | IP67 |
| MicroSD Playback | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | No |
| USB Playback | No | - |
| Weight | 1.6 lbs (735 g) | 1.5 lbs (680 g) |
| Bluetooth Version | 5.4 | 5.3 |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) | 8.3” x 2.8” x 2.8” (211.0 x 71.6 x 70.0 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter | 1x 80x45mm racetrack woofer, 1x 16mm tweeter |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) | - |
| Amplifier Power | 40W (25W woofer + 15W tweeter) | 30W |
| Digital Aux Input | No | No |
| Strap | No | Yes (mounting straps) |
| Bass Extension (-10dB) | - | 75Hz |
| Party Mode | - | Yes (Auracast) |
| Wi-Fi | - | No |
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