Short answer: the Harman Kardon Luna 2 if sound quality matters most, the Tribit Stormbox Mini+ if price matters most. The Harman Kardon Luna 2 ranks #25 of 179 medium speakers, rated 4.1/5, at $199.95. The Tribit Stormbox Mini+ ranks #145, rated 2.5/5, at $39.99, $159.96 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. Watch for: Treble can sound bright and edgy, and it loses more output off-axis than some rivals.
The Tribit Stormbox Mini+ is the lighter option. An inexpensive waterproof speaker packed with features, including app EQ, an aux input, microSD playback and stereo pairing. At 1.2 lbs (544 g) it weighs noticeably less than the Harman Kardon Luna 2 at 1.6 lbs (735 g). It supports AAC Bluetooth, which the Harman Kardon Luna 2 lacks. It keeps a wired aux input, which the Harman Kardon Luna 2 lacks. The catch: Not a great sounding speaker, really weak bass.
Buy the Harman Kardon Luna 2 if sound quality is the priority over the price, or the Tribit Stormbox Mini+ if the price is the priority over sound quality.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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 Stormbox Mini+ | |
|---|---|---|
| Price | $199.95 | $39.99 |
| Ranked | #25 of 179 in Medium Size Portable Bluetooth Speakers | #145 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC |
| EQ | Yes (4 presets + custom) | Yes (App EQ) |
| IP Rating | IP67 | IPX7 |
| MicroSD Playback | No | Yes |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | No | - |
| Weight | 1.6 lbs (735 g) | 1.2 lbs (544 g) |
| Bluetooth Version | 5.4 | 5.4 |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) | 3.6” x 3.6” x 4.7” (91 x 91 x 119 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter | 2x 48mm full-range drivers + 1x passive radiator |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) | - |
| Amplifier Power | 40W (25W woofer + 15W tweeter) | 12W |
| Digital Aux Input | No | No |
| Strap | No | - |
| Charging Time | - | 2.5 hours |
| Lights | - | Yes |
| Built-in Microphone | - | Yes |
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