Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Bose Soundlink Micro 2 ranks #18 of 62 small speakers by sound quality at $129; the Sony ULT Field 3 ranks #71 of 179 medium speakers by sound quality at $208.
The Bose Soundlink Micro 2 is the lighter choice. A waterproof mini speaker with a fabric strap for bags and bikes and USB-C charging. At 0.7 lbs (329 g) it weighs much less than the Sony ULT Field 3 at 2.6 lbs (1.2 kg). The catch: Lack of clarity.
The Sony ULT Field 3 is the longer-running choice. A rugged waterproof stereo speaker with long battery life, a detailed app EQ, a shoulder strap and a phone charging port. It is rated for 24 hours of battery against 12 for the Bose Soundlink Micro 2. It supports LDAC Bluetooth, which the Bose Soundlink Micro 2 lacks. It plays in stereo from a single unit, unlike the Bose Soundlink Micro 2. The tradeoff: Sounds a bit hollow, a bit boosted in the treble.
Buy the Bose Soundlink Micro 2 at $129 for a small speaker, or the Sony ULT Field 3 at $208 for a medium speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
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Specifications Side By Side
| Bose Soundlink Micro 2 | Sony ULT Field 3 | |
|---|---|---|
| Price | $129.00 | $208.00 |
| Ranked | #18 of 62 in Small Size Portable Bluetooth Speakers | #71 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | No | Yes |
| EQ | Yes | Yes (App + ULT button) |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Bose Party mode) | Yes (Party Connect up to 100 speakers) |
| Power Bank | No | Yes (USB-C, 5V/1.5A) |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Pointing up | No |
| TWS | Yes | Yes |
| Weight | 0.7 lbs (329 g) | 2.6 lbs (1.2 kg) |
| Aux Input | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, aptX, SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.4 | 5.2 |
| Dimensions | 4.1” x 4.1” x 1.7” (104 x 104 x 43 mm) | 10.1” x 4.4” x 3.1” (256 x 113 x 79 mm) |
| Charging Time | 3 hours | - |
| Drivers | 40mm full-range driver with passive radiator | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | Yes (detachable shoulder strap) |
| Amplifier Power | - | 27W |
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