These sit in different size classes, so this is not a straight ranking comparison. The Bose Soundlink Flex 2nd gen ranks #37 of 179 medium speakers by sound quality at $159; the Bose Soundlink Micro 2 ranks #18 of 62 small speakers by sound quality at $129.
The case for the Bose Soundlink Flex 2nd gen: A small, rugged waterproof speaker with clear, well balanced mids, app EQ, aptX Adaptive and stereo pairing with a second unit. It supports aptX Adaptive Bluetooth, which the Bose Soundlink Micro 2 lacks. 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.
The Bose Soundlink Micro 2 is the lighter option. A waterproof mini speaker with a fabric strap for bags and bikes and USB-C charging. At 0.7 lbs (329 g) it weighs much less than the Bose Soundlink Flex 2nd gen at 1.3 lbs (586 g). 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.
Prices on this page were last checked November 11, 2026 at 3:26 AM 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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Specifications Side By Side
| Bose Soundlink Flex 2nd gen | Bose Soundlink Micro 2 | |
|---|---|---|
| Price | $159.00 | $129.00 |
| Ranked | #37 of 179 in Medium Size Portable Bluetooth Speakers | #18 of 62 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 | Yes | Yes |
| 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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