These are not really the same size class, and that is the honest framing here. The Harman Kardon Luna 2 ranks #25 of 179 medium speakers by sound quality at $199.95; the Bose Soundlink Micro ranks #20 of 62 small speakers by sound quality at $99.99.
The Harman Kardon Luna 2 is the 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 6 for the Bose Soundlink Micro. It has an adjustable EQ, which the Bose Soundlink Micro lacks. It charges over USB-C rather than Micro USB. The tradeoff: Treble can sound bright and edgy, and it loses more output off-axis than some rivals.
The Bose Soundlink Micro is the lighter choice. A rugged waterproof pocket speaker with a built in strap, party pairing, and low Bluetooth delay for video. At 0.6 lbs (289 g) it weighs much less than the Harman Kardon Luna 2 at 1.6 lbs (735 g).
Buy the Harman Kardon Luna 2 at $199.95 if you want a medium speaker. Buy the Bose Soundlink Micro at $99.99 if you want a small speaker instead.
Want more options? Browse the full 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 | Bose Soundlink Micro | |
|---|---|---|
| Price | $199.95 | $99.99 |
| Ranked | #25 of 179 in Medium Size Portable Bluetooth Speakers | #20 of 62 in Small Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Battery Life | 12 hours (Manufacturer specified) | 6 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| EQ | Yes (4 presets + custom) | No |
| IP Rating | IP67 | IP67 |
| MicroSD Playback | No | - |
| Power Input | USB-C | Micro USB |
| Stereo | No | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes |
| USB Playback | No | - |
| Weight | 1.6 lbs (735 g) | 0.6 lbs (289 g) |
| Bluetooth Version | 5.4 | 4.2 |
| Dimensions | 8.5” x 3.3” x 3.2” (216 x 84 x 81 mm) | 3.9” x 3.9” x 1.4” (98 x 98 x 35 mm) |
| Drivers | 62mm x 82mm woofer with passive radiator, 20mm tweeter | 40mm with dual passive radiators |
| Frequency Response | 58Hz - 20kHz (-6dB) (Manufacturer specified) | - |
| Amplifier Power | 40W (25W woofer + 15W tweeter) | 5W |
| Digital Aux Input | No | No |
| Strap | No | Yes (built-in strap) |
| Bass Extension (-10dB) | - | 66Hz |
| Built-in Microphone | - | Yes |
| Bluetooth Latency | - | 50ms |
| Maximum SPL | - | 90dB (measured by Alan Ross Reviews) |
| Party Mode | - | Yes (Bose Party mode) |
| Power Bank | - | No |
| Charging Time | - | 3 hours |
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