Short answer: the Sony ULT Field 3 for better sound quality, the Ultimate Ears Wonderboom for the lower price. The Sony ULT Field 3 ranks #57 of 136 medium speakers at $148. The Ultimate Ears Wonderboom ranks #87 at $79, $69 cheaper.
What the Sony ULT Field 3 offers: 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. Watch for: 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.
What the Ultimate Ears Wonderboom offers: IP67 rated and floats. Compact, light, and simple to use. Watch for: Not stereo, barely any bass, recessed treble. Dip at 9khz. Low mid bass distortion. Not technically a 360 speaker, only front and rear.
Buy the Sony ULT Field 3 when sound quality outweighs the price for you, and the Ultimate Ears Wonderboom when the price outweighs sound quality instead.
If battery life is a priority, the Sony ULT Field 3 is rated for 24 hours versus 10 hours for the Ultimate Ears Wonderboom.
Specifications Side By Side
| Sony ULT Field 3 | Ultimate Ears Wonderboom | |
|---|---|---|
| Price | $148 | $79 Discontinued |
| Ranked | #57 of 136 in Medium Size Portable Bluetooth Speakers | #87 of 136 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | - |
| Battery Life | 24 hours (Manufacturer specified) | 10 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC | - |
| Bluetooth Version | 5.2 | - |
| Built in Microphone | Yes | 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 | 2x 1.6" active drivers + 2x 1.8" x 2.6" passive radiators |
| EQ | Yes (App + ULT button) | No |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (Party Connect up to 100 speakers) | No |
| Power Bank | Yes (USB-C, 5V/1.5A) | - |
| Power Input | USB-C | Micro USB |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| TWS | Yes | Yes |
| Weight | 2.6 lbs / 1.2 kg | 0.9 lbs / 425 g |
| Output Power | 27W | - |
| Digital Aux Input | No | No |
| Discontinued | - | Yes |
Related Speaker Comparisons
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- JBL Charge 2 vs Ultimate Ears Wonderboom 2
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- Soundcore Motion 300 vs Sony ULT Field 3
- Soundcore Motion+ vs Sony ULT Field 3
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
Sony ULT Field 3: $148 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 →
| 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 |
| Output Power | 27W |
| 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
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Ultimate Ears Wonderboom: $79 Discontinued eBay
Pros: IP67 rated and floats. Compact, light, and simple to use.
Cons: Not stereo, barely any bass, recessed treble. Dip at 9khz. Low mid bass distortion. Not technically a 360 speaker, only front and rear. Discontinued.
Full Ultimate Ears Wonderboom review and specifications →
| App | No |
|---|---|
| Battery Life | 10 hours (Manufacturer specified) |
| Built in Microphone | No |
| Digital Aux Input | No |
| Discontinued | Yes |
| Drivers | 2x 1.6" active drivers + 2x 1.8" x 2.6" passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Input | Micro USB |
| Stereo | No |
| TWS | Yes |
| Weight | 0.9 lbs / 425 g |
- Reviews, Comparisons and Sound Samples
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