Short answer: the Bose Soundlink Flex 2nd gen. It ranks #37 of 177 medium speakers by sound quality, rated 3.8/5, at $149. The Walla Sound ranks #163, rated 2.2/5, at $49.99, $99.01 cheaper, which does not close the gap in sound quality.
The Bose Soundlink Flex 2nd gen is the better-sounding, longer-running pick. A small, rugged waterproof speaker with clear, well balanced mids, app EQ, aptX Adaptive and stereo pairing with a second unit. It is rated for 12 hours of battery against 8 for the Walla Sound. It is rated IP67 against IPX5 for the Walla Sound. It has an adjustable EQ, which the Walla Sound lacks. 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 Walla Sound is the lighter choice. A small shockproof speaker with an aux input, microSD playback and a built in microphone. At 0.7 lbs (300 g) it weighs much less than the Bose Soundlink Flex 2nd gen at 1.3 lbs (586 g). It keeps a wired aux input, which the Bose Soundlink Flex 2nd gen lacks. The tradeoff: No bass, gets distorted when turned up.
Buy the Bose Soundlink Flex 2nd gen. It is rated higher for sound quality, and saving $99.01 with the Walla Sound does not make up for the sound-quality gap.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A small, rugged waterproof speaker with clear, well balanced mids, app EQ, aptX Adaptive and stereo pairing with a second unit.
A small shockproof speaker with an aux input, microSD playback and a built in microphone.
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Specifications Side By Side
| Bose Soundlink Flex 2nd gen | Walla Sound | |
|---|---|---|
| Price | $149.00 | $49.99 |
| Ranked | #37 of 177 in Medium Size Portable Bluetooth Speakers | #163 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Battery Life | 12 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (3 band) | No |
| IP Rating | IP67 | IPX5 |
| Party Mode | Yes (Bose Party mode) | - |
| Power Input | USB-C | Micro USB |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.3 lbs (586 g) | 0.7 lbs (300 g) |
| Bluetooth | Yes | Yes |
| 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 |
| Strap | Yes (built-in loop) | - |
| Amplifier Power | - | 10W (2 x 5W) |
| Bass Extension (-10dB) | - | ~90Hz |
| MicroSD Playback | - | Yes |
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