These sit in different size classes, so this is not a straight ranking comparison. The Bose Soundlink Flex 2nd gen ranks #35 of 145 medium speakers by sound quality at $159; the Bose Lifestyle Ultra Speaker ranks #12 of 19 powered desktop speakers by sound quality at $299.
Why pick 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.
The case for the Bose Lifestyle Ultra Speaker: Three drivers (a 3in woofer and 1in tweeter facing forward, plus a 1.5in driver firing upward) give it a noticeably taller sound than most compact home speakers. The tradeoff: RTINGS lists sub-par directivity as its main weakness, and reviewers agree a single unit sounds narrow from side to side, so it works best as a stereo pair.
Buy the Bose Soundlink Flex 2nd gen at $159 if you want a medium speaker. Buy the Bose Lifestyle Ultra Speaker at $299 if you want a powered desktop speaker instead.
Water resistance is not close: the Bose Soundlink Flex 2nd gen is rated at IP67 (brief submersion), well ahead of the Bose Lifestyle Ultra Speaker at no water resistance.
Want more options? Browse the full Portable Bluetooth rankings and Powered Home rankings.
Specifications Side By Side
| Bose Soundlink Flex 2nd gen | Bose Lifestyle Ultra Speaker | |
|---|---|---|
| Price | $159.00 | $299.00 each |
| Ranked | #35 of 145 in Medium Size Portable Bluetooth Speakers | #12 of 19 in Medium Size Powered Desktop Speakers |
| App | Yes | Yes (Bose) |
| Battery Life | 12 hours (Manufacturer specified) | No Battery |
| Built-in Microphone | Yes | Yes (far-field, mic mute button) |
| EQ | Yes (3 band) | Yes (Bass/Mid/Treble + up-firing driver level) |
| IP Rating | IP67 | None |
| Party Mode | Yes (Bose Party mode) | Yes (Bose app multi-room, AirPlay 2, Google Cast) |
| Power Input | USB-C | AC power cord |
| Stereo | No | No |
| Omnidirectional | No | - |
| TWS | Yes | Yes (stereo pairing via Bose app) |
| Weight | 1.3 lbs (586 g) | 3.7 lbs (1.68 kg) |
| Bluetooth Version | 5.3 | - |
| Dimensions | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) | 7.2” x 4.8” x 6.6” (184 x 121 x 167 mm) (H x W x D) |
| Aux Input | No | Yes |
| Drivers | 60mm full-range driver with passive radiators | 3in woofer, 1in tweeter, 1.5in up-firing mid/high driver |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive | - |
| Digital Aux Input | No | - |
| Strap | Yes (built-in loop) | - |
| Wi-Fi | - | Yes |
| Power Bank | - | No |
| Inputs | - | Wi-Fi, Bluetooth, 3.5mm aux |
| XLR Input | - | No |
| RCA Input | - | No |
| TRS Input | - | Yes (3.5mm) |
| Optical Input | - | No |
| Coaxial Input | - | No |
| USB Input | - | No |
| HDMI Input | - | No |
| AES Input | - | No |
| Bluetooth | - | Yes, 5.3 |
| Voice Assistants | - | Amazon Alexa / Alexa+ |
| Streaming Services | - | AirPlay 2, Google Cast, Spotify Connect |
Related Speaker Comparisons
How Bose Soundlink Flex 2nd gen compares with other leading options:
- Bose Soundlink Flex 2nd gen vs Earfun Uboom L
- Bose Soundlink Flex 2nd gen vs Soundcore Motion 300
- Bose Soundlink Flex 2nd gen vs Soundcore Motion+
- Bose Soundlink Flex 2nd gen vs Soundcore Boost “upgraded” 2021
- Bose Soundlink Flex 2nd gen vs Minirig 4
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 (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 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!
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Bose Lifestyle Ultra Speaker: $299.00 each Amazon eBay
Pros: Three drivers (a 3in woofer and 1in tweeter facing forward, plus a 1.5in driver firing upward) give it a noticeably taller sound than most compact home speakers. Stuff gave it the edge over the Sonos Era 100, and TechRadar called its tonal balance fairly neutral, with tight bass control and high detail. Alexa, including Alexa+, is built in, and RTINGS found its microphones picked up commands easily from across a noisy room. It streams over AirPlay 2, Google Cast, Spotify Connect and Bluetooth 5.3, keeps a 3.5mm aux input that the Era 100 lacks, and two units can be stereo paired or used as rear surrounds with the Lifestyle Ultra Soundbar.
Cons: RTINGS lists sub-par directivity as its main weakness, and reviewers agree a single unit sounds narrow from side to side, so it works best as a stereo pair. Deep bass is limited: Engadget found the low end restrained and preferred the Denon Home 200’s sound, Stuff noted it can’t separate sub-bass from the bassline and that DSP pulls bass back at maximum volume, and TechRadar heard a slight toothiness in the treble that needed EQ to calm. The EQ is only bass, mid and treble with no automatic room calibration. Bose warns the aux and Bluetooth inputs add lip sync delay for TV use, it has no battery or IP rating, and both SoundGuys and Engadget needed several restarts to get stereo pairing working.
Full Bose Lifestyle Ultra Speaker review and specifications →
| AES Input | No |
|---|---|
| App | Yes (Bose) |
| Aux Input | Yes |
| Battery Life | No Battery |
| Bluetooth | Yes, 5.3 |
| Built-in Microphone | Yes (far-field, mic mute button) |
| Coaxial Input | No |
| Dimensions | 7.2” x 4.8” x 6.6” (184 x 121 x 167 mm) (H x W x D) |
| Drivers | 3in woofer, 1in tweeter, 1.5in up-firing mid/high driver |
| EQ | Yes (Bass/Mid/Treble + up-firing driver level) |
| HDMI Input | No |
| IP Rating | None |
| Inputs | Wi-Fi, Bluetooth, 3.5mm aux |
| Optical Input | No |
| Party Mode | Yes (Bose app multi-room, AirPlay 2, Google Cast) |
| Power Bank | No |
| Power Input | AC power cord |
| RCA Input | No |
| Stereo | No |
| Streaming Services | AirPlay 2, Google Cast, Spotify Connect |
| TRS Input | Yes (3.5mm) |
| TWS | Yes (stereo pairing via Bose app) |
| USB Input | No |
| Voice Assistants | Amazon Alexa / Alexa+ |
| Weight | 3.7 lbs (1.68 kg) |
| Wi-Fi | Yes |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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