Short answer: the Bose Soundlink Flex 2nd gen for better sound quality, the W-King D320 for the lower price. The Bose Soundlink Flex 2nd gen ranks #33 of 135 medium speakers at $129.99. The W-King D320 ranks #44 at $52.92, $77.07 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 the battery about 10% a week.
What the W-King D320 gets right: It packs 40W of output power, IP67 waterproofing, 24 hour battery life, a customizable EQ app with 6 preset modes, Bluetooth 5.3, AUX and MicroSD support, dual tweeters with passive radiators, and USB-C charging. Set against that: it’s not stereo, has a warm tuning, is lacking some detail, and has rolled off treble.
Buy the Bose Soundlink Flex 2nd gen if sound quality matters more than the price. Buy the W-King D320 if the price matters more than sound quality.
If battery life is a priority, the W-King D320 is rated for 24 hours versus 12 hours for the Bose Soundlink Flex 2nd gen.
Specifications Side By Side
| Bose Soundlink Flex 2nd gen | W-King D320 | |
|---|---|---|
| Price | $129.99 | $52.92 |
| Ranked | #33 of 135 in Medium Size Portable Bluetooth Speakers | #44 of 135 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built in Microphone | Yes | Yes |
| EQ | Yes (3 band) | Yes |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Bose Party mode) | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| TWS | Yes | No |
| Weight | 1.3 lbs / 586 g | 3.1 lbs / 1.4 kg |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) | 3.3" x 8.4" (83 x 214 mm) (diameter x height) |
| Aux Input | No | Yes |
| Drivers | 60mm full-range driver with passive radiators | 52mm x 91mm woofer, 2x 25mm tweeters + 2x passive radiators |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive | - |
| Digital Aux Input | No | No |
| MicroSD Playback | - | Yes |
| Frequency Response | - | 100Hz - 18kHz (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 Soundcore Boom 3i
- Bose Soundlink Flex 2nd gen vs JBL Charge 5 Wifi
- Bose Soundlink Flex 2nd gen vs Xiaomi Sound Outdoor
- Bose Soundlink Flex 2nd gen vs Bogasing M4
- Bose Soundlink Flex 2nd gen vs Bogasing G4
- Bose Soundlink Flex 2nd gen vs Harman Kardon Luna
- Bose Soundlink Flex 2nd gen vs Tribit Maxsound Plus V1/V2/Thunderbox Plus
- See all 21 comparisons
W-King D320: $52.92 Aliexpress Amazon
Pros: 40W output power, IP67 waterproof, 24-hour battery life, customizable EQ app with 6 preset modes, Bluetooth 5.3, AUX and MicroSD support, dual tweeters with passive radiators, USB-C charging
Cons: Not stereo. Warm tuning. Lacking some detail. Rolled off treble
Full W-King D320 review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 3.3" x 8.4" (83 x 214 mm) (diameter x height) |
| Drivers | 52mm x 91mm woofer, 2x 25mm tweeters + 2x passive radiators |
| EQ | Yes |
| Frequency Response | 100Hz - 18kHz (Manufacturer specified) |
| IP Rating | IP67 |
| MicroSD Playback | Yes |
| Output Power | 40W |
| Power Input | USB-C |
| Stereo | No |
| TWS | No |
| Weight | 3.1 lbs / 1.4 kg |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Techder Audios: W-king D320 VS Mifa Wildrod “DUAL VS SINGLE TWEETERS!”
- Audio y Mas 🔊: Altavoces JBL Flip 6 vs W-King D320: ¿Cuál es el mejor en calidad de sonido? 🔊
- Jay’s Straight Up Reviews & More: Ultimate Ears MegaBoom 4 vs W-King D320 🔋Does Paying More Get You Less? 😧
- Reddit Search for W-King D320 Review
- Head-to-Head Comparisons


