Short answer: the Bogasing M5. It ranks #61 of 177 medium speakers by sound quality, rated 3.5/5, at $52.99; the KEF Muo gen2 ranks #96, rated 3.1/5, and costs $249.99, which makes this an easy call rather than a real tradeoff.
The Bogasing M5 is the better-sounding option. A compact, backpack friendly speaker with very long battery life and USB-C charging at a budget price. It keeps a wired aux input, which the KEF Muo gen2 lacks. The catch: Front/rear driver configuration.
What the KEF Muo gen2 does well: A stylish waterproof stereo speaker with aptX Adaptive, USB-C audio input, Auracast and long battery life. It plays in stereo from a single unit, unlike the Bogasing M5. The tradeoff: Lacking deeper bass.
Buy the Bogasing M5. It is rated higher for sound quality than the KEF Muo gen2 and costs less, which makes it the one to get unless you need something the other one does better.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A compact, backpack friendly speaker with very long battery life and USB-C charging at a budget price.
A stylish waterproof stereo speaker with aptX Adaptive, USB-C audio input, Auracast and long battery life.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| Bogasing M5 | KEF Muo gen2 | |
|---|---|---|
| Price | $52.99 | $249.99 |
| Ranked | #61 of 177 in Medium Size Portable Bluetooth Speakers | #96 of 177 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 61Hz | - |
| Battery Life | 30 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| IP Rating | IPX7 | IP67 |
| Maximum SPL | 96dB (measured by Alan Ross Reviews) | 90dB (Manufacturer specified) |
| MicroSD Playback | Yes | - |
| Power Bank | Yes (USB-A) | - |
| Stereo | No (front/rear drivers) | Yes |
| Omnidirectional | Yes | No |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 1.7 lbs (757 g) | 1.6 lbs (740 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.4 |
| Dimensions | 6.3” x 3” x 2.8” (160 x 76 x 71 mm) | 8.5” x 3.2” x 2.3” (216 x 82 x 59 mm) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | 43Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 40W | 40W |
| Drivers | 30W system | 1x 58x117mm racetrack woofer, 1x 20mm tweeter |
| Digital Aux Input | No | Yes (USB-C) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC, aptX Adaptive up to 48 kHz 24 bit |
| App | No | Yes |
| EQ | Yes | Yes |
| Power Input | USB-C | USB-C |
| Party Mode | - | Yes (Auracast) |
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