These sit in different size classes, so this is not a straight ranking comparison. The Bose SoundLink Plus ranks #25 of 120 large speakers by sound quality at $179; the Sony ULT Field 3 ranks #71 of 179 medium speakers by sound quality at $208.
Why pick the Bose SoundLink Plus: A waterproof mid size speaker with vibrant sound, booming bass, clean mids, a long battery and premium build. Watch for: Boosted thuddy bass, but not as deep as the SoundLink Flex and you should probably just buy one of those instead if you want a Bose.
The Sony ULT Field 3 is the lighter option. A rugged waterproof stereo speaker with long battery life, a detailed app EQ, a shoulder strap and a phone charging port. At 2.6 lbs (1.2 kg) it weighs noticeably less than the Bose SoundLink Plus at 3.3 lbs (1.5 kg). It supports LDAC Bluetooth, which the Bose SoundLink Plus lacks. It has an adjustable EQ, which the Bose SoundLink Plus lacks. The tradeoff: Sounds a bit hollow, a bit boosted in the treble.
Buy the Bose SoundLink Plus at $179 if you want a large speaker. Buy the Sony ULT Field 3 at $208 if you want a medium speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
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Specifications Side By Side
| Bose SoundLink Plus | Sony ULT Field 3 | |
|---|---|---|
| Price | $179.00 | $208.00 |
| Ranked | #25 of 120 in Large Size Portable Bluetooth Speakers | #71 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Battery Life | 20 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | No | Yes |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Bose Party mode) | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C) | Yes (USB-C, 5V/1.5A) |
| Power Input | USB-C | USB-C |
| TWS | Yes | Yes |
| Weight | 3.3 lbs (1.5 kg) | 2.6 lbs (1.2 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LDAC |
| EQ | No | Yes (App + ULT button) |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Bluetooth Version | 5.4 | 5.2 |
| Dimensions | 9.1” x 3.9” x 3.4” (231 x 99 x 86 mm) | 10.1” x 4.4” x 3.1” (256 x 113 x 79 mm) |
| Drivers | 1x 2.5” (63.5mm) woofer + 1x ~0.78” (20mm) tweeter + 4x passive radiators | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| Digital Aux Input | No | No |
| Strap | Yes (built-in loop) | Yes (detachable shoulder strap) |
| Amplifier Power | - | 27W |
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