Short answer: the Sony ULT Field 3. It ranks #71 of 179 medium speakers by sound quality, rated 3.4/5, at $208; the KEF Muo gen2 ranks #96, rated 3.1/5, and costs $249.99, so there is not much of a tradeoff to weigh.
Buy the Sony ULT Field 3. It is rated higher for sound quality than the KEF Muo gen2 and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A stylish waterproof stereo speaker with aptX Adaptive, USB-C audio input, Auracast and long battery life.
A rugged waterproof stereo speaker with long battery life, a detailed app EQ, a shoulder strap and a phone charging port.
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Specifications Side By Side
| KEF Muo gen2 | Sony ULT Field 3 | |
|---|---|---|
| Price | $249.99 | $208.00 |
| Ranked | #96 of 179 in Medium Size Portable Bluetooth Speakers | #71 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Battery Life | 24 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, aptX Adaptive up to 48 kHz 24 bit | SBC, AAC, LDAC |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Auracast) | Yes (Party Connect up to 100 speakers) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Digital Aux Input | Yes (USB-C) | No |
| Weight | 1.6 lbs (740 g) | 2.6 lbs (1.2 kg) |
| Bluetooth Version | 5.4 | 5.2 |
| Drivers | 1x 58x117mm racetrack woofer, 1x 20mm tweeter | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| Dimensions | 8.5” x 3.2” x 2.3” (216 x 82 x 59 mm) | 10.1” x 4.4” x 3.1” (256 x 113 x 79 mm) |
| Frequency Response | 43Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 40W | 27W |
| Maximum SPL | 90dB (Manufacturer specified) | - |
| Aux Input | No | No |
| EQ | Yes | Yes (App + ULT button) |
| Power Input | USB-C | USB-C |
| Built-in Microphone | - | Yes |
| Power Bank | - | Yes (USB-C, 5V/1.5A) |
| Strap | - | Yes (detachable shoulder strap) |
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