Short answer: these aren’t really competing for the same job. The Flip 7 ranks #15 of 179 medium speakers at $149.95, while the ULT Field 5 ranks #59 of 120 large speakers at $348.
The size difference explains most of the gap. Our notes call the Flip 7 a very neutral speaker, small enough to be almost pocket-sized, with slightly more treble and slightly deeper bass than the well-regarded Flip 6, and it costs a fraction of the much larger ULT Field 5. The ULT Field 5’s own notes are more measured: bass that’s not as deep as others in its own, larger category, and sound quality described as just okay overall. The Flip 7’s only real knock is a small bump around 4kHz that keeps it just a touch less neutral than the Flip 6 it replaced.
The ULT Field 5 earns its size and price with battery life and features: a 25-hour battery against 14 hours on the Flip 7, a built-in microphone, an aux input, stereo sound with true wireless stereo pairing, and LDAC support alongside SBC and AAC. It also has one quirk worth knowing about, a dedicated ULT bass-boost button that our notes say makes a loud tone when pressed.
Buy the JBL Flip 7 if you want a genuinely pocketable speaker with accurate, well-reviewed sound for a fraction of the price.
Buy the Sony ULT Field 5 if you need the size, the longer battery life, and stereo sound, and can accept that its own notes rate the sound quality as just okay.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 11, 2026 at 3:26 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| JBL Flip 7 | Sony ULT Field 5 | |
|---|---|---|
| Price | $149.95 | $348.00 |
| Ranked | #15 of 179 in Medium Size Portable Bluetooth Speakers | #59 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 59Hz | - |
| Battery Life | 14 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| Built-in Microphone | No | Yes |
| EQ | Yes (7 band) | Yes (App + ULT button) |
| IP Rating | IP68 | IP67 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Auracast) | Yes (Party Connect up to 100 speakers) |
| Power Bank | No | Yes (USB-C) |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | No | Yes |
| Digital Aux Input | Yes (USB-C) | No |
| Weight | 1.2 lbs (560 g) | 7.3 lbs (3.3 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC | SBC, AAC, LDAC |
| Drivers | 45x80mm racetrack driver + 16mm tweeter | 2x 46mm tweeters + 1x 79mm x 107mm woofer |
| Amplifier Power | 35W total (25W main + 10W tweeter) | 27W |
| Bluetooth Version | 5.4 | 5.3 |
| Dimensions | 7.2” x 2.7” x 2.8” (182.5 x 69.5 x 71.5 mm) | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) |
| Power Input | USB-C (5V 7.5W-15W) | USB-C |
| Strap | Yes (detachable PushLock accessory) | Yes (detachable shoulder strap) |
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