Short answer: the Bose Soundlink Flex. It ranks #38 of 177 medium speakers by sound quality, rated 3.8/5, at $79.99; the LG Xboom Grab ranks #106, rated 3.0/5, and costs $100.98, so there is little reason to consider the other one.
The Bose Soundlink Flex is the better-sounding, deeper-bass pick. A small, rugged waterproof speaker that survives drops and floats, with a warm, bass forward sound for casual outdoor use. Its bass reaches about 56Hz before falling 10dB, against 75Hz for the LG Xboom Grab. The catch: Warm sounding with overly boosted bass which drowns out midrange detail.
The LG Xboom Grab is the longer-running choice. A rugged waterproof speaker with elastic mounting straps, a long 20 hour battery, multipoint pairing and app room calibration. It is rated for 20 hours of battery against 12 for the Bose Soundlink Flex. It supports AAC Bluetooth, which the Bose Soundlink Flex lacks. It has an adjustable EQ, which the Bose Soundlink Flex lacks. The catch: Bass extension not as deep as the top speakers.
Buy the Bose Soundlink Flex. It is rated higher for sound quality than the LG Xboom Grab and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Want more options? Browse the full Portable Bluetooth rankings.
A small, rugged waterproof speaker that survives drops and floats, with a warm, bass forward sound for casual outdoor use.
A rugged waterproof speaker with elastic mounting straps, a long 20 hour battery, multipoint pairing and app room calibration.
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Specifications Side By Side
| Bose Soundlink Flex | LG Xboom Grab | |
|---|---|---|
| Price | $79.99 | $100.98 |
| Ranked | #38 of 177 in Medium Size Portable Bluetooth Speakers | #106 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Bass Extension (-10dB) | 56Hz | 75Hz |
| Battery Life | 12 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Built-in Microphone | Yes | - |
| EQ | No | Yes |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 33ms | - |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Bose Party mode) | Yes (Auracast) |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | No |
| Weight | 1.3 lbs (589 g) | 1.5 lbs (680 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 5.3 |
| Dimensions | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) | 8.3” x 2.8” x 2.8” (211.0 x 71.6 x 70.0 mm) |
| Drivers | 1x 60mm full-range driver + 2x passive radiators | 1x 80x45mm racetrack woofer, 1x 16mm tweeter |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | AAC, SBC |
| Aux Input | No | No |
| Strap | Yes (built-in loop) | Yes (mounting straps) |
| Wi-Fi | - | No |
| Amplifier Power | - | 30W |
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