Short answer: the JBL Charge 3. It ranks #67 of 136 medium speakers by sound quality at $80; the Sony ULT Field 1 ranks #76 and costs $98, so there is little reason to consider the other one.
What the JBL Charge 3 offers: Doubles as a 6000mAh power bank for USB devices. ~20 hour battery life. IPX7 rated; built-in noise/echo-cancelling speakerphone. Watch for: Less clarity than the Flip 4. Battery failures are common.
What the Sony ULT Field 1 offers: IP67 rated, survives drops and 1m submersion. Real-world battery around 28+ hours with ULT (bass boost) mode off. Stereo-pairs with a second ULT Field 1. Watch for: Upper midrange peak, rolled off treble
Buy the JBL Charge 3. It ranks higher for sound quality than the Sony ULT Field 1 and costs less, which settles it without a real tradeoff to make.
There is a real battery-life gap here: the JBL Charge 3 is rated for 20 hours, the Sony ULT Field 1 only 12 hours.
Specifications Side By Side
| JBL Charge 3 | Sony ULT Field 1 | |
|---|---|---|
| Price | $80 Discontinued | $98.00 |
| Ranked | #67 of 136 in Medium Size Portable Bluetooth Speakers | #76 of 136 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 63Hz | - |
| Battery Life | 20 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Max Volume | 100dB | - |
| Party Mode | Yes (Connect+ up to 100 speakers) | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/2A) | No |
| Power Input | Micro USB | USB-C |
| Weight | 1.8 lbs / 800 g | 1.4 lbs / 650 g |
| Bluetooth Version | 4.1 | 5.3 |
| Drivers | 2x 50mm fullrange | 83mm x 42mm woofer, 16mm tweeter + passive radiator |
| Dimensions | 8.4" x 3.5" x 3.5" (213 x 88 x 88 mm) | 8.1" x 3" x 3" (206 x 77 x 76 mm) |
| Frequency Response | 65Hz - 20kHz (Manufacturer specified) | - |
| Output Power | 20W RMS | - |
| App | Yes (JBL Connect) | Yes |
| Built in Microphone | Yes | Yes |
| Bluetooth Codecs | SBC | AAC, SBC |
| EQ | No | Yes |
| IP Rating | IPX7 | IP67 |
| Discontinued | Yes | - |
| Digital Aux Input | No | No |
| Omnidirectional | No | No |
| Stereo | - | No |
| TWS | - | Yes |
Related Speaker Comparisons
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- JBL Grip vs Ultimate Ears Wonderboom
- JBL Charge Essential vs Ultimate Ears Boom 4
- Soundcore Motion 100 vs JBL Flip Essential
- Soundcore Glow vs Sony ULT Field 1
- Sony ULT Field 1 vs Ultimate Ears Wonderboom 2
Prices on this page were last checked August 27, 2026 at 10:09 PM 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 Charge 3: $80 Discontinued eBay
Pros: Doubles as a 6000mAh power bank for USB devices. ~20 hour battery life. IPX7 rated; built-in noise/echo-cancelling speakerphone.
Cons: Less clarity than the Flip 4. Battery failures are common. Discontinued.
Full JBL Charge 3 review and specifications →
| App | Yes (JBL Connect) |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 63Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.1 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.4" x 3.5" x 3.5" (213 x 88 x 88 mm) |
| Discontinued | Yes |
| Drivers | 2x 50mm fullrange |
| EQ | No |
| Frequency Response | 65Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Max Volume | 100dB |
| Omnidirectional | No |
| Output Power | 20W RMS |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/2A) |
| Power Input | Micro USB |
| Weight | 1.8 lbs / 800 g |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL Charge 5 vs JBL Charge 4 and Charge 3 - best JBL charge 5 review 2021? More from alanrossreviews →
- Alan Ross Reviews: JBL Flip 6 vs JBL Charge 4 and JBL Charge 3 - small one or a large one? 🤷♂️
- DLX Willington: JBL Flip 5 vs Flip 4 :Sound Battle: Almost to the size of the JBL Charge 3? More from DLXWillington →
- EnforcerMan: JBL CHARGE 3 VS TREBLAB HD77 - FULL REVIEW
- Reddit Search for JBL Charge 3 Review
- Head-to-Head Comparisons
Sony ULT Field 1: $98.00 Amazon eBay
Pros: IP67 rated, survives drops and 1m submersion. Real-world battery around 28+ hours with ULT (bass boost) mode off. Stereo-pairs with a second ULT Field 1.
Cons: Upper midrange peak, rolled off treble
Full Sony ULT Field 1 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Version | 5.3 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.1" x 3" x 3" (206 x 77 x 76 mm) |
| Drivers | 83mm x 42mm woofer, 16mm tweeter + passive radiator |
| EQ | Yes |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.4 lbs / 650 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons