Short answer: the Bose Soundlink Flex 2nd gen on measured sound quality, the Walla Sound on price. The Bose Soundlink Flex 2nd gen ranks #35 of 142 medium speakers at $159. The Walla Sound ranks #129 at $49.99, $109.01 cheaper.
What the Bose Soundlink Flex 2nd gen offers: 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. 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 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.
What the Walla Sound offers: IPX5 water resistant, 8-hour battery life, shockproof construction, Bluetooth 5.0, MicroSD card support, AUX input, built-in HD microphone, voice assistant compatible, lightweight 300g Watch for: No bass, gets distorted when turned up. Harsh upper mids.
Buy the Bose Soundlink Flex 2nd gen if sound quality matters more than the price. Buy the Walla Sound if the price matters more than sound quality.
If sound quality matters at all to you, skip the Walla Sound. It ranks near the bottom of the 142 medium speakers, so look higher up the list instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Bose Soundlink Flex 2nd gen | Walla Sound | |
|---|---|---|
| Price | $159.00 | $49.99 |
| Ranked | #35 of 142 in Medium Size Portable Bluetooth Speakers | #129 of 142 in Medium Size Portable Bluetooth Speakers |
| App | Yes | - |
| Battery Life | 12 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (3 band) | - |
| IP Rating | IP67 | IPX5 |
| Party Mode | Yes (Bose Party mode) | - |
| Power Input | USB-C | Micro USB |
| Stereo | No | - |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.3 lbs (586 g) | 0.7 lbs (300 g) |
| Bluetooth Version | 5.3 | 5.0 |
| Dimensions | 7.9" x 3.5" x 2" (201 x 90 x 52 mm) | 2.7" x 2.7" x 6.3" (68 x 68 x 160 mm) |
| Aux Input | No | Yes |
| Drivers | 60mm full-range driver with passive radiators | 30mm metal diaphragm driver |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive | SBC (inferred; additional codecs unverified) |
| Digital Aux Input | No | No |
| Bass Extension (-10dB) | - | ~90Hz |
| MicroSD Playback | - | Yes |
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Prices on this page were last checked September 16, 2026 at 12:41 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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The Two Speakers In Full
Bose Soundlink Flex 2nd gen: $159.00 Amazon eBay
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 |
| 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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Walla Sound: $49.99 Walla Sound eBay
Pros: IPX5 water resistant, 8-hour battery life, shockproof construction, Bluetooth 5.0, MicroSD card support, AUX input, built-in HD microphone, voice assistant compatible, lightweight 300g. Measured bass extension of ~90Hz (-10dB).
Cons: No bass, gets distorted when turned up. Harsh upper mids.
Full Walla Sound review and specifications →
| Aux Input | Yes |
|---|---|
| Bass Extension (-10dB) | ~90Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 2.7" x 2.7" x 6.3" (68 x 68 x 160 mm) |
| Drivers | 30mm metal diaphragm driver |
| IP Rating | IPX5 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Power Input | Micro USB |
| TWS | Yes |
| Weight | 0.7 lbs (300 g) |
- Reviews, Comparisons and Sound Samples
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