Short answer: the JBL Flip 6 is the more neutral small-speaker choice, while Sony’s ULT Field 3 brings longer runtime and more app features. JBL ranks #12 of 142; Sony ranks #60 of 142.
Flip 6 is a compact 30W speaker with a clean, near-neutral balance and 98dB maximum output. It is mono and its claimed 12-hour battery is modest, but it does not need tonal correction to be enjoyable.
ULT Field 3 adds a 24-hour battery, 10-band EQ, Party Connect, LDAC, and USB-C phone charging. Its bass is weak with ULT off, it sounds hollow, and enabling ULT disables custom EQ, leaving its feature advantage clear but its sound tradeoff real.
Buy the JBL Flip 6 at $129.95 if natural sound and a smaller size matter most.
Buy the Sony ULT Field 3 at $138 if runtime, app EQ, and party linking are more important.
What the JBL Flip 6 gets right: A very neutral speaker, very small, almost pocket size, a huge sound quality leap over the Flip 5. The catch: Not stereo.
On the Sony ULT Field 3 side: IP67 rated, dustproof and water resistant. The catch: Sounds a bit hollow, a bit boosted in the treble.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| JBL Flip 6 | Sony ULT Field 3 | |
|---|---|---|
| Price | $129.95 | $138.00 |
| Ranked | #12 of 142 in Medium Size Portable Bluetooth Speakers | #60 of 142 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Bass Extension (-10dB) | 56Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 24 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, 5V/1.5A) |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.2 lbs (544 g) | 2.6 lbs (1.2 kg) |
| Bluetooth Codecs | AAC, SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.1 | 5.2 |
| Dimensions | 6.9" x 2.7" x 2.8" (176 x 68 x 72 mm) | 10.1" x 4.4" x 3.1" (256 x 113 x 79 mm) |
| Drivers | 44mm x 80mm woofer, 16mm tweeter | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| Power Input | USB-C | USB-C |
| Amplifier Power | 30W | 27W |
| Digital Aux Input | No | No |
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How JBL Flip 6 compares with other leading options:
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- JBL Flip 6 vs Soundcore Motion+
- Soundcore Boost “upgraded” 2021 vs JBL Flip 6
- JBL Flip 6 vs Minirig 4
Prices on this page were last checked September 22, 2026 at 5:11 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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The Two Speakers In Full
JBL Flip 6: $129.95 Amazon B&H Photo Video eBay
Pros: A very neutral speaker, very small, almost pocket size, a huge sound quality leap over the Flip 5. Measured bass extension of 56Hz (-10dB).
Cons: Not stereo. Some slight upper mids emphasis. The TL version (made in Vietnam) tweeter can sound somewhat scratchy and doesn’t sound as good as the GG version (made in China)
Full JBL Flip 6 review and specifications →
| Amplifier Power | 30W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Latency | 116ms |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 6.9" x 2.7" x 2.8" (176 x 68 x 72 mm) |
| Drivers | 44mm x 80mm woofer, 16mm tweeter |
| EQ | Yes (3 band) |
| IP Rating | IP67 |
| Maximum SPL | 98dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (PartyBoost up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.2 lbs (544 g) |
- Links
- Reviews, Comparisons and Sound Samples
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- Alan Ross Reviews: Soundcore Motion 300 or JBL Flip 6 or Soundcore Boost v2? we all have issues!
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- Jay’s Straight Up Reviews & More: JBL Flip 6 vs Ultimate Ears Wonderboom 3 (Indoor Mode)⚔️ Battle of the Handheld Bluetooth Speakers. More from JaysStraightUpReviews →
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- Head-to-Head Comparisons
Sony ULT Field 3: $138.00 Amazon eBay
Pros: IP67 rated, dustproof and water resistant. 24 hour battery life. App with 10-band EQ. Party Connect with up to 100 speakers. USB-C in/out for charging your phone.
Cons: Sounds a bit hollow, a bit boosted in the treble. Custom EQ and the ULT bass-boost button can’t be used together - turning on ULT disables the EQ. Bass is very weak with ULT off. Lost to the JBL Charge 6 in a side-by-side comparison despite being the larger speaker.
Full Sony ULT Field 3 review and specifications →
| Amplifier Power | 27W |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 10.1" x 4.4" x 3.1" (256 x 113 x 79 mm) |
| Drivers | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| EQ | Yes (App + ULT button) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C, 5V/1.5A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.6 lbs (1.2 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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