Short answer: the Harman Kardon Luna for better sound quality, the Soundcore Boom 3i for the lower price. The Harman Kardon Luna ranks #22 of 136 medium speakers at $290.99. The Soundcore Boom 3i ranks #27 at $110, $180.99 cheaper.
What the Harman Kardon Luna gets right: Pretty balanced sound besides the boosted bass. Watch for: Not stereo. Boosted bass, not as detailed as higher ranked speakers.
What the Soundcore Boom 3i offers: Looks to be designed as a direct competitor to the Charge 5 with a very similar sound profile, warm tuned with boosted bass. The catch: Not quite as good as a Charge 5, doesn’t go quite as loud or sound quite as balanced, but very very close.
Buy the Harman Kardon Luna if sound quality matters more than the price. Buy the Soundcore Boom 3i if the price matters more than sound quality.
Specifications Side By Side
| Harman Kardon Luna | Soundcore Boom 3i | |
|---|---|---|
| Price | $290.99 | $110 |
| Ranked | #22 of 136 in Medium Size Portable Bluetooth Speakers | #27 of 136 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes |
| Aux Input | No | No |
| Bass Extension (-10dB) | 57Hz | 56Hz |
| Battery Life | 12 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC, AAC |
| EQ | No | Yes |
| IP Rating | IP67 | IP68 |
| 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 | 1.7 lbs / 783 g |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 8.3" x 3.1" x 3.1" (210 x 78 x 80 mm) | 8.3" x 3.3" x 3.1" (210 x 85 x 78.5 mm) |
| Drivers | 48mm x 90mm woofer, 20mm tweeter | 94mm woofer + tweeter |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | - |
| Output Power | 40W | 50W |
| Digital Aux Input | No | No |
| Party Mode | - | No |
| Built in Microphone | - | Yes |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- JBL Charge 5 Wifi vs JBL Charge 5
- JBL Charge 5 vs Turtlebox Ranger
- JBL Charge 5 vs KEF Muo gen2
- JBL Flip 6 vs Harman Kardon Luna
- Tribit Xsound Mega vs Harman Kardon Luna
The Two Speakers In Full
Harman Kardon Luna: $290.99 Amazon
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 |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- 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
- Harman Kardon Luna vs Xiaomi Sound Party
- Harman Kardon Luna vs B&O Beosound A1 3rd gen
- Harman Kardon Luna vs JBL Charge 5
- Harman Kardon Luna vs JBL Flip 6
- Harman Kardon Luna vs Bose Soundlink Flex 2nd gen
- See all 12 comparisons
Soundcore Boom 3i: $110 Amazon Bhphotovideo
Pros: Looks to be designed as a direct competitor to the Charge 5 with a very similar sound profile, warm tuned with boosted bass. Better value for the money than the Charge 5.
Cons: Not quite as good as a Charge 5, doesn’t go quite as loud or sound quite as balanced, but very very close. An earlier firmware version had some bass distortion, update your firmware in the Soundcore App
Full Soundcore Boom 3i review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.3" x 3.3" x 3.1" (210 x 85 x 78.5 mm) |
| Drivers | 94mm woofer + tweeter |
| EQ | Yes |
| IP Rating | IP68 |
| Omnidirectional | No |
| Output Power | 50W |
| Party Mode | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.7 lbs / 783 g |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Soundcore Boom 3i vs JBL Charge 5
- Soundcore Boom 3i vs JBL Charge 5 Wifi
- Soundcore Boom 3i vs Teufel Rockster XS
- Soundcore Boom 3i vs Tribit Xsound Plus 2
- Soundcore Boom 3i vs Bose Soundlink Flex 2nd gen
- Soundcore Boom 3i vs Tribit Maxsound Plus V1/V2/Thunderbox Plus
- Soundcore Boom 3i vs Tribit Xsound Mega
- Soundcore Boom 3i vs Bose Soundlink Flex
- See all 11 comparisons


