Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The JBL Flip 6 ranks #13 of 179 medium speakers by sound quality at $79.95; the Sony ULT Field 5 ranks #59 of 120 large speakers by sound quality at $348.
The JBL Flip 6 is the lighter pick. A small, rugged speaker with very neutral sound for its size, an excellent choice for most people. At 1.2 lbs (544 g) it weighs much less than the Sony ULT Field 5 at 7.3 lbs (3.3 kg). The tradeoff: Some slight upper mids emphasis.
The Sony ULT Field 5 is the longer-running pick. A tough, waterproof party speaker with loud, bass focused output, an aux input, a power bank and a long battery. It is rated for 25 hours of battery against 12 for the JBL Flip 6. It supports LDAC Bluetooth, which the JBL Flip 6 lacks. It keeps a wired aux input, which the JBL Flip 6 lacks. Watch for: It prioritizes bass and loudness over fidelity: reviews find the upper mids and highs subdued, with limited stereo separation and soundstage depth.
Buy the JBL Flip 6 at $79.95 for a medium speaker, or the Sony ULT Field 5 at $348 for a large speaker instead.
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 6 | Sony ULT Field 5 | |
|---|---|---|
| Price | $79.95 | $348.00 |
| Ranked | #13 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) | 56Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| Built-in Microphone | No | Yes |
| EQ | Yes (3 band) | Yes (App + ULT button) |
| 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 | Yes (USB-C) |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.2 lbs (544 g) | 7.3 lbs (3.3 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.1 | 5.3 |
| Dimensions | 6.9” x 2.7” x 2.8” (176 x 68 x 72 mm) | 12.6” x 5.7” x 4.9” (320 x 144 x 125 mm) |
| Drivers | 44mm x 80mm woofer, 16mm tweeter | 2x 46mm tweeters + 1x 79mm x 107mm woofer |
| Power Input | USB-C | USB-C |
| Amplifier Power | 30W | 27W |
| Digital Aux Input | No | No |
| Strap | Yes (built-in loop) | Yes (detachable shoulder strap) |
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