Short answer: the Sony ULT Field 3 if sound quality matters most, the Ultimate Ears Wonderboom 2 if price matters most. The Sony ULT Field 3 ranks #75 of 175 medium speakers, rated 3.4/5, at $208. The Ultimate Ears Wonderboom 2 ranks #111, rated 2.9/5, at $80, $128 cheaper.
The Sony ULT Field 3 is the better-sounding, longer-running option. IP67 rated, dustproof and water resistant. It is rated for 24 hours of battery against 12 for the Ultimate Ears Wonderboom 2. It supports LDAC Bluetooth, which the Ultimate Ears Wonderboom 2 lacks. It links with other speakers (Party Connect up to 100 speakers), which the Ultimate Ears Wonderboom 2 cannot. The tradeoff: Sounds a bit hollow, a bit boosted in the treble.
The Ultimate Ears Wonderboom 2 is the lighter choice. IP67 rated and floats. At 0.9 lbs (420 g) it weighs much less than the Sony ULT Field 3 at 2.6 lbs (1.2 kg). The tradeoff: Not stereo, barely any bass, recessed treble.
Buy the Sony ULT Field 3 when sound quality outweighs the price for you, and the Ultimate Ears Wonderboom 2 when the price outweighs sound quality instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Sony ULT Field 3 | Ultimate Ears Wonderboom 2 | |
|---|---|---|
| Price | $208.00 | $80 |
| Ranked | #75 of 175 in Medium Size Portable Bluetooth Speakers | #111 of 175 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | No |
| Battery Life | 24 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Bluetooth Version | 5.2 | 5.1 |
| Built-in Microphone | Yes | No |
| Dimensions | 10.1” x 4.4” x 3.1” (256 x 113 x 79 mm) | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 1x 20mm tweeter + 1x 86mm x 46mm woofer | 2x 40mm active drivers + 2x passive radiators |
| EQ | Yes (App + ULT button) | No |
| IP Rating | IP67 | IP67 |
| 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 (420 g) |
| Amplifier Power | 27W | - |
| Digital Aux Input | No | No |
| Strap | Yes (detachable shoulder strap) | Yes (built-in loop) |
| Bass Extension (-10dB) | - | 82Hz |
| Maximum SPL | - | 88dB (measured by Alan Ross Reviews) |
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- Soundcore Motion 300 vs Sony ULT Field 3
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- Soundcore Boost “upgraded” 2021 vs Sony ULT Field 3
- Sony ULT Field 3 vs Minirig 4
Prices on this page were last checked October 12, 2026 at 4:13 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: $208.00 Amazon $208.00 eBay
Older models: the Sony XB33 (ranked lower, rated 3.4/5), the Sony SRS-XE300 (ranked lower, rated 2.8/5), the Sony SRS-XB31 (ranked lower, rated 2.8/5) and the Sony SRS-XB30 (ranked lower, rated 2.6/5). See every Sony XB and ULT generation.
Same family: the Sony ULT Field 1 (smaller model, ranked lower, rated 3.1/5), the Sony ULT Field 7 (smaller model, rated 3.2/5), the Sony ULT Tower 10 (smaller model, rated 3.9/5), the Sony ULT Field 5 (larger model, rated 3.5/5), the Sony ULT Tower 5 (larger model, rated 4.5/5), the Sony ULT Tower 7 (larger model, rated 4.7/5), the Sony ULT Tower 9 (larger model, rated 4.2/5) and the Sony ULT Tower Max (larger model, rated 4.8/5).
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 →
| Released | Apr 2025 (1 year ago) |
|---|---|
| Amplifier Power | 27W |
| App | Yes |
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| 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 |
| Strap | Yes (detachable shoulder strap) |
| TWS | Yes |
| Weight | 2.6 lbs (1.2 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony ULT Field 3 vs Bose Soundlink Mini
- Sony ULT Field 3 vs Xiaomi Mi Portable
- Sony ULT Field 3 vs Sony XB33
- Sony ULT Field 3 vs Bose SoundLink Home
- Sony ULT Field 3 vs Bose Soundlink Mini 2
- Sony ULT Field 3 vs Bose Portable Smart Speaker
- Sony ULT Field 3 vs Beats Pill 2024
- Sony ULT Field 3 vs Soundcore 3
- See all 144 comparisons
Ultimate Ears Wonderboom 2: $80 Amazon $80 eBay
Newer model: the Ultimate Ears Wonderboom 4, ranked higher, rated 2.9/5, released Jun 2024.
Older model: the Ultimate Ears Wonderboom (ranked lower, rated 2.9/5). See every Ultimate Ears Wonderboom, Boom and Megaboom generation.
Pros: IP67 rated and floats. Compact and light enough to toss in a bag. Measured bass extension of 82Hz (-10dB).
Cons: Not stereo, barely any bass, recessed treble. Slightly boosted 93Hz upper bass Dip at 9kHz. You can tell from the micro USB that they are just feeding you the same crap hardware over and over, this is inexcusable for a product released in 2019. Not technically a 360 speaker, only front and rear.
Full Ultimate Ears Wonderboom 2 review and specifications →
| Released | Jun 2019 (7 years ago) |
|---|---|
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 82Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 88dB (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Input | Micro USB |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: The biggest upgrade since time began! 💪 More from alanrossreviews →
- Alan Ross Reviews: UE Wonderboom 2 review and sound test - vs Flip 5 - Flip 4
- Alan Ross Reviews: Soundcore Flare 2 - mega 360 degree speaker shootout!
- Danny Pops: MICRO SPEAKERS - my take on JBL Clip 4 VS Wonderboom 2 VS Bose Micro More from DannyPops →
- Head-to-Head Comparisons
- Ultimate Ears Wonderboom 2 vs Ultimate Ears Wonderboom 3
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- Ultimate Ears Wonderboom 2 vs Ultimate Ears Wonderboom 4
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