These sit in different size classes, so this is not a straight ranking comparison. The Bose Soundlink Micro 2 ranks #18 of 62 small speakers by sound quality at $129; the Sony ULT Field 1 ranks #99 of 179 medium speakers by sound quality at $138.

The Bose Soundlink Micro 2 is the lighter pick. 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 1 at 1.4 lbs (650 g). It supports aptX Bluetooth, which the Sony ULT Field 1 lacks. Watch for: Lack of clarity.
The case for the Sony ULT Field 1: A tough, waterproof small speaker that survives drops, with long real world battery life and stereo pairing. The tradeoff: Upper midrange peak, rolled off treble.
Buy the Bose Soundlink Micro 2 at $129 if you want a small speaker. Buy the Sony ULT Field 1 at $138 if you want a medium speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Bose Soundlink Micro 2 | Sony ULT Field 1 | |
|---|---|---|
| Price | $129.00 | $138.00 |
| Ranked | #18 of 62 in Small Size Portable Bluetooth Speakers | #99 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Built-in Microphone | No | Yes |
| EQ | Yes | Yes |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Bose Party mode) | Yes (Party Connect up to 100 speakers) |
| Power Bank | No | No |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | No |
| TWS | Yes | Yes |
| Weight | 0.7 lbs (329 g) | 1.4 lbs (650 g) |
| Aux Input | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, aptX, SBC | AAC, SBC |
| Bluetooth Version | 5.4 | 5.3 |
| Dimensions | 4.1” x 4.1” x 1.7” (104 x 104 x 43 mm) | 8.1” x 3” x 3” (206 x 77 x 76 mm) |
| Charging Time | 3 hours | - |
| Drivers | 40mm full-range driver with passive radiator | 83mm x 42mm woofer, 16mm tweeter + passive radiator |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | Yes (detachable strap) |
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