Short answer: the JBL Flip 6 is the more neutral speaker; the Sony ULT Field 1 is the tougher choice for drops, water, and stereo pairing. JBL ranks #13 of 179; Sony ranks #99 of 179.
Flip 6 has 30W output, 98dB maximum level, and a 56Hz bass specification in a 1.2 lbs (544 g) package. Its sound is balanced, though it remains mono and has only a claimed 12-hour battery.
ULT Field 1 weighs 1.4 lbs (650 g), is IP67, survives drops, and can pair with a second unit for stereo. Its upper-midrange peak and rolled-off treble make it less accurate, but its ruggedness is meaningful.
Buy the JBL Flip 6 at $79.95 if neutral sound is your main requirement.
Buy the Sony ULT Field 1 at $138 if you need stereo pairing and a more abuse-resistant portable.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A small, rugged speaker with very neutral sound for its size, an excellent choice for most people.
A tough, waterproof small speaker that survives drops, with long real world battery life and stereo pairing.
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Specifications Side By Side
| JBL Flip 6 | Sony ULT Field 1 | |
|---|---|---|
| Price | $79.95 | $138.00 |
| Ranked | #13 of 179 in Medium Size Portable Bluetooth Speakers | #99 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Bass Extension (-10dB) | 56Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Built-in Microphone | No | Yes |
| EQ | Yes (3 band) | Yes |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 116ms | - |
| Maximum SPL | 98dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (PartyBoost up to 100 speakers) | Yes (Party Connect up to 100 speakers) |
| Power Bank | No | No |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.2 lbs (544 g) | 1.4 lbs (650 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | AAC, SBC |
| Bluetooth Version | 5.1 | 5.3 |
| Dimensions | 6.9” x 2.7” x 2.8” (176 x 68 x 72 mm) | 8.1” x 3” x 3” (206 x 77 x 76 mm) |
| Drivers | 44mm x 80mm woofer, 16mm tweeter | 83mm x 42mm woofer, 16mm tweeter + passive radiator |
| Power Input | USB-C | USB-C |
| Amplifier Power | 30W | - |
| Digital Aux Input | No | No |
| Strap | Yes (built-in loop) | Yes (detachable strap) |
Watch Them Compared
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