These are not really the same size class, and that is the honest framing here. The JBL Xtreme 5 ranks #2 of 120 large speakers by sound quality at $399.95; the Harman Kardon Luna ranks #26 of 179 medium speakers by sound quality at $290.99.
The JBL Xtreme 5 is the deeper-bass, longer-running option. A large waterproof speaker with deep bass, wide, clean sound at volume and a removable 28 hour battery. Its bass reaches about 43Hz before falling 10dB, against 57Hz for the Harman Kardon Luna. It is rated for 28 hours of battery against 12 for the Harman Kardon Luna. It supports AAC Bluetooth, which the Harman Kardon Luna lacks. The catch: High priced.
The Harman Kardon Luna is the lighter choice. A fully waterproof speaker with fairly balanced, bass rich sound, a separate tweeter, and stereo pairing with a second unit. At 2.5 lbs (1.13 kg) it weighs much less than the JBL Xtreme 5 at 6.4 lbs (2.9 kg). The catch: Boosted bass, and less detailed than higher-ranked speakers.
Buy the JBL Xtreme 5 ($399.95) for a large speaker; the Harman Kardon Luna ($290.99) suits a medium 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| JBL Xtreme 5 | Harman Kardon Luna | |
|---|---|---|
| Price | $399.95 | $290.99 |
| Ranked | #2 of 120 in Large Size Portable Bluetooth Speakers | #26 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | No |
| Battery Life | 28 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| EQ | Yes (7 band) | No |
| IP Rating | IP68 | IP67 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Auracast) | - |
| Power Bank | Yes (USB-C, 5V/3A) | - |
| Power Input | USB-C | USB-C |
| Removable Battery | Yes | - |
| TWS | Yes | Yes |
| Weight | 6.4 lbs (2.9 kg) | 2.5 lbs (1.13 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LC3 | SBC |
| Built-in Microphone | No | - |
| Stereo | Partially (1 woofer) | No |
| Omnidirectional | No | No |
| Bluetooth Version | 6.0 | 5.3 |
| Dimensions | 13.6” x 6.5” x 6.1” (346 x 165 x 155 mm) | 8.3” x 3.1” x 3.1” (210 x 78 x 80 mm) |
| Drivers | 98x145mm woofer, 2x 20mm tweeters + 2x passive radiators | 48mm x 90mm woofer, 20mm tweeter |
| Frequency Response | 40Hz - 20kHz (Manufacturer specified) | 60Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 1 x 90W RMS Woofer + 2 x 20W RMS Tweeter (AC power mode) 1 x 60W RMS Woofer + 2 x 15W RMS Tweeter (Battery mode) | 40W |
| Digital Aux Input | Yes (USB-C) | No |
| Strap | Yes (detachable shoulder strap) | - |
| Bass Extension (-10dB) | 43Hz (measured by Alan Ross Reviews) | 57Hz |
| MicroSD Playback | - | No |
| USB Playback | - | Yes |
Related Speaker Comparisons
More top alternatives to JBL Xtreme 5: