These sit in different size classes, so this is not a straight ranking comparison. The Bose Soundlink Flex 2nd gen ranks #35 of 144 medium speakers by sound quality at $159; the Bose Soundlink Micro 2 ranks #18 of 47 small speakers by sound quality at $129.
The case for the Bose Soundlink Flex 2nd gen: A very portable 586g, IP67-rated speaker with a clear, well-balanced midrange that keeps voices and instruments intelligible. Watch for: One Flex remains mono and cannot deliver genuine low-bass rumble; RTINGS also found the elevated treble can turn hi-hats and other high-frequency detail piercing.
What the Bose Soundlink Micro 2 does well: IP67 rated, survives a 1m dunk for 30 minutes. Watch for: Lack of clarity.
Buy the Bose Soundlink Flex 2nd gen at $159 if you want a medium speaker. Buy the Bose Soundlink Micro 2 at $129 if you want a small speaker instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Bose Soundlink Flex 2nd gen | Bose Soundlink Micro 2 | |
|---|---|---|
| Price | $159.00 | $129.00 |
| Ranked | #35 of 144 in Medium Size Portable Bluetooth Speakers | #18 of 47 in Small Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| EQ | Yes (3 band) | Yes |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Bose Party mode) | Yes (Bose Party mode) |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes |
| Weight | 1.3 lbs (586 g) | 0.7 lbs (329 g) |
| Bluetooth Version | 5.3 | 5.4 |
| Dimensions | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) | 4.1” x 4.1” x 1.7” (104 x 104 x 43 mm) |
| Aux Input | No | No |
| Drivers | 60mm full-range driver with passive radiators | 40mm full-range driver with passive radiator |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive | AAC, aptX, SBC |
| Digital Aux Input | No | No |
| Strap | Yes (built-in loop) | Yes (built-in strap) |
| Power Bank | - | No |
| Charging Time | - | 3 hours |
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Prices on this page were last checked September 26, 2026 at 11:14 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
Bose Soundlink Flex 2nd gen: $159.00 Amazon eBay
Older model: the Bose Soundlink Flex (rated 3.8/5).
Pros: A very portable 586g, IP67-rated speaker with a clear, well-balanced midrange that keeps voices and instruments intelligible. The second generation adds a Bose app with 3-band EQ, better-placed controls and stereo pairing with another Bose Soundlink Flex 2nd gen. It supports AAC and aptX Adaptive in addition to SBC, making it a stronger wireless option than most small rivals.
Cons: One Flex remains mono and cannot deliver genuine low-bass rumble; RTINGS also found the elevated treble can turn hi-hats and other high-frequency detail piercing. The claimed battery life is only 12 hours, and some owners report accelerated standby drain after firmware updates. It is expensive for its size, so the added app and codec support, not a transformational sound upgrade over the original, are the main reasons to choose it.
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 |
| Omnidirectional | No |
| Party Mode | Yes (Bose Party mode) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.3 lbs (586 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen vs Flex More from Oluv’Sone →
- 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! More from alanrossreviews →
- CEONTHEMAKING: Bose Soundlink Flex 2nd Gen VS Marshall Emberton III - What’s NEW?? More from CEONTHEMAKING →
- Alan Ross - The Anti Shill!: Small speaker, mighty sound, The Flex gen 2 shatters physics!
- Head-to-Head Comparisons
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Bose Soundlink Micro 2: $129.00 Amazon eBay
Older model: the Bose Soundlink Micro (rated 3.5/5).
Pros: IP67 rated, survives a 1m dunk for 30 minutes. Compact fabric strap for clipping to bags/bikes - replaces the 1st-gen’s hook clip, which was prone to breaking. USB-C charging. Surprisingly good bass when mounted outdoors, like on a bike.
Cons: Lack of clarity. Overly boosted bass that causes some thudding, and can overdrive/distort at higher volumes - worse in this regard than the 1st-gen model. Overly boosted treble, turn down bass and treble in the EQ. Falls clearly behind the Tribit Stormbox Micro 2 on bass depth, cleanliness, and loudness.
Full Bose Soundlink Micro 2 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, aptX, SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Charging Time | 3 hours |
| Digital Aux Input | No |
| Dimensions | 4.1” x 4.1” x 1.7” (104 x 104 x 43 mm) |
| Drivers | 40mm full-range driver with passive radiator |
| EQ | Yes |
| IP Rating | IP67 |
| Omnidirectional | Pointing up |
| Party Mode | Yes (Bose Party mode) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in strap) |
| TWS | Yes |
| Weight | 0.7 lbs (329 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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