Short answer: the Harman Kardon Luna for better sound quality, the Bose Soundlink Flex 2nd gen for the lower price. The Harman Kardon Luna ranks #22 of 135 medium speakers at $169.95. The Bose Soundlink Flex 2nd gen ranks #33 at $129.99, $39.96 cheaper.
The case for the Bose Soundlink Flex 2nd gen: it sounds pretty much identical to the 1st gen. The catch: it’s not stereo, sounds warm with overly boosted bass that drowns out midrange detail, and self-drains its battery about 10% a week.
What the Harman Kardon Luna gets right: it sounds pretty balanced besides the boosted bass. Set against that: it’s not stereo, and the boosted bass makes it less detailed than higher ranked speakers.
Buy the Bose Soundlink Flex 2nd gen if the price matters more than sound quality. Buy the Harman Kardon Luna if sound quality matters more than the price.
Specifications Side By Side
| Bose Soundlink Flex 2nd gen | Harman Kardon Luna | |
|---|---|---|
| Price | $129.99 | $169.95 |
| Ranked | #33 of 135 in Medium Size Portable Bluetooth Speakers | #22 of 135 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Battery Life | 12 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Built in Microphone | Yes | - |
| EQ | Yes (3 band) | No |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Bose Party mode) | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| TWS | Yes | Yes |
| Weight | 1.3 lbs / 586 g | 2.5 lbs / 1.13 kg |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) | 8.3" x 3.1" x 3.1" (210 x 78 x 80 mm) |
| Aux Input | No | No |
| Drivers | 60mm full-range driver with passive radiators | 48mm x 90mm woofer, 20mm tweeter |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive | SBC |
| Digital Aux Input | No | No |
| Bass Extension (-10dB) | - | 57Hz |
| MicroSD Playback | - | No |
| USB Playback | - | Yes |
| Frequency Response | - | 60Hz - 20kHz (Manufacturer specified) |
| Output Power | - | 40W |
The Two Speakers In Full
Bose Soundlink Flex 2nd gen: $129.99 Amazon
Pros: Pretty much identical sounding to the 1st gen
Cons: Not stereo. Warm sounding with overly boosted bass which drowns out midrange detail. Self drains the battery about 10% a week.
Full Bose Soundlink Flex 2nd gen review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) |
| Drivers | 60mm full-range driver with passive radiators |
| EQ | Yes (3 band) |
| IP Rating | IP67 |
| Party Mode | Yes (Bose Party mode) |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.3 lbs / 586 g |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen vs Flex
- Oluv Patreon: Bose Soundlink Flex 2nd gen - sound demo
- Tô Thái Trí Hùng: Unbox & Sound Test - Bose Soundlink Flex 2
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen & Soundcore Motion 300 sound test
- Alan Ross: Hall of Fame classic vs latest Bose tech!
- CEONTHEMAKING: Bose Soundlink Flex 2nd Gen VS Marshall Emberton III - What’s NEW??
- Alan Ross - The Anti Shill!: Small speaker, mighty sound, The Flex gen 2 shatters physics!
- Reddit Search for Bose Soundlink Flex 2nd gen Review
- Head-to-Head Comparisons
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- Bose Soundlink Flex 2nd gen vs Tribit Maxsound Plus V1/V2/Thunderbox Plus
- See all 21 comparisons
Harman Kardon Luna: $169.95 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 |
| 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