Short answer: the Sony ULT Field 3. It ranks #60 of 142 medium speakers by sound quality at $138; the B&O Beosound Explore ranks #112 and costs $299, so there is little reason to consider the other one.
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 B&O Beosound Explore offers: IP67 rated with a rugged ‘seatbelt’ strap and carabiner hook. Real-world battery life around 20-24 hours. Distinctive anodized-aluminum design. Watch for: Huge lack of bass extension compared to competitors, overly hot ringing treble. Colored midrange. Just not great sounding overall.
Buy the Sony ULT Field 3. It ranks higher for sound quality than the B&O Beosound Explore and costs less, which settles it without a real tradeoff to make.
The B&O Beosound Explore is not a sound-quality pick. It sits near the bottom of the 142 medium speakers; there are better options higher up.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Sony ULT Field 3 | B&O Beosound Explore | |
|---|---|---|
| Price | $138.00 | $299.00 |
| Ranked | #60 of 142 in Medium Size Portable Bluetooth Speakers | #112 of 142 in Medium Size Portable Bluetooth Speakers |
| App | Yes | - |
| Aux Input | No | - |
| Battery Life | 24 hours (Manufacturer specified) | 27 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC |
| Bluetooth Version | 5.2 | 5.2 |
| Built-in Microphone | Yes | No |
| Dimensions | 10.1" x 4.4" x 3.1" (256 x 113 x 79 mm) | 3.2" x 4.9" x 3.2" (81 x 124 x 81 mm) |
| Drivers | 1x 20mm tweeter + 1x 86mm x 46mm woofer | 2x 1.8" (46mm) full-range drivers |
| EQ | Yes (App + ULT button) | - |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Party Connect up to 100 speakers) | - |
| Power Bank | Yes (USB-C, 5V/1.5A) | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 2.6 lbs (1.2 kg) | 1.4 lbs (631 g) |
| Amplifier Power | 27W | 60W |
| Digital Aux Input | No | Yes (USB-C) |
| Bass Extension (-10dB) | - | ~70Hz |
| Maximum SPL | - | 91dB (Manufacturer specified) |
Related Speaker Comparisons
How Sony ULT Field 3 compares with other leading options:
- Sony ULT Field 3 vs Earfun Uboom L
- Soundcore Motion 300 vs Sony ULT Field 3
- Soundcore Motion+ vs Sony ULT Field 3
- Soundcore Boost “upgraded” 2021 vs Sony ULT Field 3
- Sony ULT Field 3 vs Minirig 4
Prices on this page were last checked September 16, 2026 at 12:41 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
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
- 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 Mini 2
- Sony ULT Field 3 vs Soundcore 3/Soundcore Select 2
- Sony ULT Field 3 vs Turtlebox Ranger
- Sony ULT Field 3 vs Beats Pill 2024
- Sony ULT Field 3 vs JBL Flip 5
- See all 93 comparisons
B&O Beosound Explore: $299.00 Amazon eBay
Pros: IP67 rated with a rugged ‘seatbelt’ strap and carabiner hook. Real-world battery life around 20-24 hours. Distinctive anodized-aluminum design. Measured bass extension of ~70Hz (-10dB).
Cons: Huge lack of bass extension compared to competitors, overly hot ringing treble. Colored midrange. Just not great sounding overall.
Full B&O Beosound Explore review and specifications →
| Amplifier Power | 60W |
|---|---|
| Bass Extension (-10dB) | ~70Hz |
| Battery Life | 27 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | No |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 3.2" x 4.9" x 3.2" (81 x 124 x 81 mm) |
| Drivers | 2x 1.8" (46mm) full-range drivers |
| IP Rating | IP67 |
| Maximum SPL | 91dB (Manufacturer specified) |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.4 lbs (631 g) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
- B&O Beosound Explore vs Tribit Stormbox Mini+
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- B&O Beosound Explore vs Doss E-Go II
- B&O Beosound Explore vs Sony SRS-XB30
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- B&O Beosound Explore vs Teufel Rockster Go
- See all 63 comparisons