Short answer: the Harman Kardon Luna for better sound quality, the Tribit Stormbox Flow for the lower price. The Harman Kardon Luna ranks #22 of 136 medium speakers at $290.99. The Tribit Stormbox Flow ranks #49 at $60, $230.99 cheaper.
What the Harman Kardon Luna offers: Pretty balanced sound besides the boosted bass. Watch for: Not stereo. Boosted bass, not as detailed as higher ranked speakers
What the Tribit Stormbox Flow offers: Up to 30 hours of battery life - roughly double most rivals (~20-24 hrs with XBass on). IP67 rated with a loose handle for carrying/hanging. Pairs with a second Flow for stereo; USB-C port charges your phone too. Watch for: Not stereo. Midrange and bass are weirdly recessed about 4db below 700hz. You need xbass mode for it to not sound like a clock radio with missing bass. You also can’t turn up the bass enough in the custom EQ modes to get it neutral, so it will sound bass light. Firmware 1.2.3 fixes the distortion issues with xbass mode on, but bass still sounds wobbly and uncontrolled.
Buy the Harman Kardon Luna if sound quality matters more than the price. Buy the Tribit Stormbox Flow if the price matters more than sound quality.
If battery life is a priority, the Tribit Stormbox Flow is rated for 30 hours versus 12 hours for the Harman Kardon Luna.
Specifications Side By Side
| Harman Kardon Luna | Tribit Stormbox Flow | |
|---|---|---|
| Price | $290.99 | $60 |
| Ranked | #22 of 136 in Medium Size Portable Bluetooth Speakers | #49 of 136 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes |
| Aux Input | No | - |
| Bass Extension (-10dB) | 57Hz | 47Hz |
| Battery Life | 12 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | - |
| EQ | No | Yes |
| IP Rating | IP67 | IPX7 |
| MicroSD Playback | No | - |
| Power Input | USB-C | - |
| Stereo | No | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | - |
| USB Playback | Yes | - |
| Weight | 2.5 lbs / 1.13 kg | 1.4 lbs / 657 g |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 8.3" x 3.1" x 3.1" (210 x 78 x 80 mm) | 7.9" x 3.6" x 2.1" (200 x 91 x 53 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter | 60W: 2x 30mm drivers + passive radiators |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Output Power | 40W | 25W |
| Digital Aux Input | No | No |
| Bluetooth Latency | - | 400ms aac, 200ms sbc |
Related Speaker Comparisons
A few more comparisons worth a look in the same class:
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- Bose Soundlink Revolve+ vs JBL Charge 4
- Bose Soundlink Revolve vs Marshall Emberton II
- Soundcore Boost “upgraded” 2021 vs Harman Kardon Luna
- Soundcore Boost “original model” pre-2021 vs Harman Kardon Luna
Prices on this page were last checked August 27, 2026 at 10:09 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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The Two Speakers In Full
Harman Kardon Luna: $290.99 Amazon eBay
Pros: Pretty balanced sound besides the boosted bass.
Cons: Not stereo. Boosted bass, not as detailed as higher ranked speakers
Full Harman Kardon Luna review and specifications →
| App | No |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 57Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 8.3" x 3.1" x 3.1" (210 x 78 x 80 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| MicroSD Playback | No |
| Omnidirectional | No |
| Output Power | 40W |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 2.5 lbs / 1.13 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: Harman Kardon Luna - sound demo More from Oluv’Sone →
- Alan Ross Reviews: Beats Pill vs Harman Luna vs Bose Flex vs Soundcore Motion Plus More from alanrossreviews →
- Storytripper HD: Klipsch Nashville vs Harman Kardon Luna vs Soundcore Motion 300 More from storytripperhd →
- Reddit Search for Harman Kardon Luna Review
- Head-to-Head Comparisons
- Harman Kardon Luna vs Tribit Maxsound Plus V1/V2/Thunderbox Plus
- Harman Kardon Luna vs Tribit Xsound Mega
- Harman Kardon Luna vs JBL Charge 5 Wifi
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- Harman Kardon Luna vs B&O Beosound A1 3rd gen
- Harman Kardon Luna vs JBL Charge 5
- Harman Kardon Luna vs Soundcore Boom 3i
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Tribit Stormbox Flow: $60 Amazon eBay
Pros: Up to 30 hours of battery life - roughly double most rivals (~20-24 hrs with XBass on). IP67 rated with a loose handle for carrying/hanging. Pairs with a second Flow for stereo; USB-C port charges your phone too.
Cons: Not stereo. Midrange and bass are weirdly recessed about 4db below 700hz. You need xbass mode for it to not sound like a clock radio with missing bass. You also can’t turn up the bass enough in the custom EQ modes to get it neutral, so it will sound bass light. Firmware 1.2.3 fixes the distortion issues with xbass mode on, but bass still sounds wobbly and uncontrolled.
Full Tribit Stormbox Flow review and specifications →
| App | Yes |
|---|---|
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 30 hours (Manufacturer specified) |
| Bluetooth Latency | 400ms aac, 200ms sbc |
| Bluetooth Version | 5.3 |
| Digital Aux Input | No |
| Dimensions | 7.9" x 3.6" x 2.1" (200 x 91 x 53 mm) |
| Drivers | 60W: 2x 30mm drivers + passive radiators |
| EQ | Yes |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | Pointing up |
| Output Power | 25W |
| Stereo | No |
| Weight | 1.4 lbs / 657 g |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: Tribit Stormbox Flow has deeper bass than the Bose Flex but……….. More from alanrossreviews →
- Alan Ross Reviews: Tribit Stormbox Flow firmware update 1.2.3 game changing moment in portable bluetooth history!
- Alan Ross Reviews: Tribit Stormbox Flow firmware update 1.2.5 - stuff gets fixed ✔
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs XSound Mega - Sound Comparison, Stock EQ, Both Mono Sound 😶🌫️ A Family Feud More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex “Inspired” Speakers
- Oluv Patreon: Tribit Stormbox Flow - after firmware update More from Oluv’Sone →
- Oluv Patreon: Tribit Stormbox Flow - sound demo
- Reddit Search for Tribit Stormbox Flow Review
- Head-to-Head Comparisons
- Tribit Stormbox Flow vs JBL Charge 4
- Tribit Stormbox Flow vs Bose Soundlink Revolve
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