Short answer: the Harman Kardon Luna on measured sound quality, the Tronsmart T8 on price. The Harman Kardon Luna ranks #26 of 182 medium speakers, rated 4.0/5, at $290.99. The Tronsmart T8 ranks #54, rated 3.6/5, at $49.99, $241 cheaper.
The Harman Kardon Luna is the better-sounding choice. A fully waterproof speaker with fairly balanced, bass rich sound, a separate tweeter, and stereo pairing with a second unit. The tradeoff: Boosted bass, and less detailed than higher-ranked speakers.
The Tronsmart T8 is the longer-running, lighter pick. An affordable waterproof speaker with upward firing drivers that spread sound around, plus lights, app EQ, an aux input and stereo pairing. It is rated for 18 hours of battery against 12 for the Harman Kardon Luna. At 1.8 lbs (800 g) it weighs noticeably less than the Harman Kardon Luna at 2.5 lbs (1.13 kg). It keeps a wired aux input, which the Harman Kardon Luna lacks. The tradeoff: Against the Xiaomi Sound Outdoor, listeners in Mateusz Cholewa’s comparison found the T8 harsh and tiring, and Techder Audios’ test showed the Xiaomi Sound Party with deeper, heavier bass.
Buy the Harman Kardon Luna when sound quality outweighs the price for you, and the Tronsmart T8 when the price outweighs sound quality instead.
Want more options? Browse the full Portable Bluetooth rankings.
Prices on this page were last checked November 14, 2026 at 6:17 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 | Tronsmart T8 | |
|---|---|---|
| Price | $290.99 | $49.99 |
| Ranked | #26 of 182 in Medium Size Portable Bluetooth Speakers | #54 of 182 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes (Tronsmart) |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 57Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 18 hours at 50% volume, lights off (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | - |
| EQ | No | Yes (app) |
| IP Rating | IP67 | IPX7 |
| MicroSD Playback | No | Yes |
| Power Input | USB-C | USB-C |
| Stereo | No | Partially |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 2.5 lbs (1.13 kg) | 1.8 lbs (0.80 kg) |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 8.3” x 3.1” x 3.1” (210 x 78 x 80 mm) | 8.6”H x 3.2”W x 3.2”D (218 x 82 x 82 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter | 2x upward firing full-range drivers + 1x woofer + 2x passive radiators |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 56Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 40W | 40W |
| Digital Aux Input | No | - |
| Charging Time | - | 4.5 hours |
| Lights | - | Yes |
| Strap | - | Yes (lanyard) |
Where the Ratings Come From
- Harman Kardon Luna: reviews by Oluv, Alan Ross and Mateusz Cholewa.
- Tronsmart T8: reviews by Mateusz Cholewa, Techder Audios and Jagist.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
Related Speaker Comparisons
More worthwhile head-to-heads for Harman Kardon Luna: