Short answer: the Turtlebox Ranger for the smoother response, the Harman Kardon Luna for a more balanced tuning. The Ranger has a smoother frequency response than the other Turtlebox speakers, but its bass sounds thuddy and is not as deep as higher ranked speakers. The Luna is described as pretty balanced apart from boosted bass, though it is not stereo, at $290.99 versus $250.
Buy the Harman Kardon Luna. It is rated higher for sound quality, and the $40.99 you would save on the Turtlebox Ranger does not close the gap.
Want more options? Browse the full Portable Bluetooth rankings.
A fully waterproof speaker with fairly balanced, bass rich sound, a separate tweeter, and stereo pairing with a second unit.
A very tough outdoor speaker with built in magnets for mounting it on metal surfaces.
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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Harman Kardon Luna | Turtlebox Ranger | |
|---|---|---|
| Price | $290.99 | $250.00 |
| Ranked | #26 of 179 in Medium Size Portable Bluetooth Speakers | #62 of 179 in Medium Size Portable Bluetooth Speakers |
| App | No | No |
| Aux Input | No | No |
| Bass Extension (-10dB) | 57Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 12+ hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| EQ | No | No |
| IP Rating | IP67 | IP67 |
| MicroSD Playback | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 2.5 lbs (1.13 kg) | 2.4 lbs (1089 g) |
| Bluetooth Version | 5.3 | 5.4 |
| Dimensions | 8.3” x 3.1” x 3.1” (210 x 78 x 80 mm) | 9.5” x 3.1” x 3.1” (241 x 80 x 80 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter | 2” (51mm) woofers |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 40W | - |
| Digital Aux Input | No | No |
| Party Mode | - | Yes (Turtlebox Party Mode) |
| Power Bank | - | Yes (USB-C) |
| Strap | - | No |
Related Speaker Comparisons
More top alternatives to Harman Kardon Luna: