Short answer: the Bose Soundlink Flex 2nd gen. It ranks #35 of 150 medium speakers by sound quality, rated 3.8/5, at $159; the Bose SoundLink Revolve (Series II) ranks #51, rated 3.6/5, and costs $194, so there is little reason to consider the other one.
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. The tradeoff: 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.
Why pick the Bose SoundLink Revolve (Series II): RTINGS measured a fairly neutral sound with a balanced midrange, so vocals and lead instruments come through clearly, and excellent directivity from the 360° design for an open, even sound around the room. Watch for: RTINGS found it lacks low bass, so there’s little deep thump or rumble.
Buy the Bose Soundlink Flex 2nd gen. It is rated higher for sound quality than the Bose SoundLink Revolve (Series II) and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Bose Soundlink Flex 2nd gen | Bose SoundLink Revolve (Series II) | |
|---|---|---|
| Price | $159.00 | $194.00 |
| Ranked | #35 of 150 in Medium Size Portable Bluetooth Speakers | #51 of 150 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Bose Connect |
| Battery Life | 12 hours (Manufacturer specified) | 13 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (3 band) | - |
| IP Rating | IP67 | IP55 |
| Party Mode | Yes (Bose Party mode) | - |
| Power Input | USB-C | - |
| Stereo | No | No |
| Omnidirectional | No | Yes |
| TWS | Yes | - |
| Weight | 1.3 lbs (586 g) | 1.5 lbs (680 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | - |
| Dimensions | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) | - |
| Aux Input | No | Yes |
| Drivers | 60mm full-range driver with passive radiators | - |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive | - |
| Digital Aux Input | No | - |
| Strap | Yes (built-in loop) | - |
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Prices on this page were last checked September 29, 2026 at 3:43 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 (ranked lower, 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 | Yes |
| 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 Revolve (Series II): $194.00 Amazon eBay
Older model: the Bose Soundlink Revolve (ranked lower, rated 3.5/5).
Pros: RTINGS measured a fairly neutral sound with a balanced midrange, so vocals and lead instruments come through clearly, and excellent directivity from the 360° design for an open, even sound around the room. In a side by side test against the Revolve+ II and B&O Beosound A1 2nd gen, several listeners preferred its clearer, less bass heavy tuning to the Revolve+ II. Up to 13 hours of battery, IP55 dust and water resistance, a built-in microphone for calls and voice assistants, and multi-connect for two devices at once.
Cons: RTINGS found it lacks low bass, so there’s little deep thump or rumble. It doesn’t get loud either: DXOMARK measured only about 73 to 74 dBA at maximum volume, against 85 to 89 dBA for speakers like the Sony SRS-XB43 in the same test, and bass compresses and pumps as you turn it up. There is no EQ in the Bose Connect app, a single unit plays mono, and it still charges over micro USB.
Full Bose SoundLink Revolve (Series II) review and specifications →
| App | Bose Connect |
|---|---|
| Aux Input | Yes |
| Battery Life | 13 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Built-in Microphone | Yes |
| IP Rating | IP55 |
| Omnidirectional | Yes |
| Stereo | No |
| Weight | 1.5 lbs (680 g) |
- Links
- Reviews, Comparisons and Sound Samples
- RTINGS: Bose SoundLink Revolve II Review More from Rtings.com →
- DXOMARK: Bose SoundLink Revolve II Speaker review
- SoundGuys: Bose SoundLink Revolve II review More from Soundguys →
- techkiste.net: B&O Beosound A1 (2nd Gen) vs Bose Revolve 2 vs Bose Revolve+ 2 sound-comparison
- Danny Pops: BEST Bose Speaker? Bose is getting lazy. More from DannyPops →
- Head-to-Head Comparisons
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