Short answer: the Soundcore Motion 100. It ranks #39 of 136 medium speakers by sound quality at $47; the Sony ULT Field 3 ranks #57 and costs $148, so there is little reason to consider the other one.
What the Soundcore Motion 100 offers: Use Oluv’s EQ for the flattest response Watch for: Not very deep bass, slight distortion. Real-world battery falls well short of the 12-hour claim at higher volumes (closer to 4 hours at max). Charging takes about 5 hours; no charge-out for other devices.
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.
Buy the Soundcore Motion 100. It ranks higher for sound quality than the Sony ULT Field 3 and costs less, so the other one has nothing left to offer.
If battery life is a priority, the Sony ULT Field 3 is rated for 24 hours versus 12 hours for the Soundcore Motion 100.
Specifications Side By Side
| Soundcore Motion 100 | Sony ULT Field 3 | |
|---|---|---|
| Price | $47 | $148 |
| Ranked | #39 of 136 in Medium Size Portable Bluetooth Speakers | #57 of 136 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | No |
| Bass Extension (-10dB) | 65Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| EQ | Yes | Yes (App + ULT button) |
| IP Rating | IPX7 | IP67 |
| Power Bank | No | Yes (USB-C, 5V/1.5A) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth Codecs | AAC, LDAC, SBC | SBC, AAC, LDAC |
| Bluetooth Version | 5.3 | 5.2 |
| Dimensions | 7.5" x 3.1" x 2.4" (190 x 80 x 60 mm) | 10.1" x 4.4" x 3.1" (256 x 113 x 79 mm) |
| Drivers | 2x full-range drivers + 2x passive radiators | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) | - |
| Weight | 1.3 lbs / 575 g | 2.6 lbs / 1.2 kg |
| Output Power | 20W | 27W |
| Built in Microphone | No | Yes |
| Digital Aux Input | No | No |
| Party Mode | - | Yes (Party Connect up to 100 speakers) |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- Bose Soundlink Mini vs JBL Flip 4
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- Bose Soundlink Mini vs Tribit Stormbox 2
- Soundcore Motion 100 vs JBL Charge 2
- Soundcore 3/Soundcore Select 2 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
Soundcore Motion 100: $47 Amazon eBay
Pros: Use Oluv’s EQ for the flattest response
Cons: Not very deep bass, slight distortion. Real-world battery falls well short of the 12-hour claim at higher volumes (closer to 4 hours at max). Charging takes about 5 hours; no charge-out for other devices.
Full Soundcore Motion 100 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 65Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, LDAC, SBC |
| Bluetooth Version | 5.3 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 7.5" x 3.1" x 2.4" (190 x 80 x 60 mm) |
| Drivers | 2x full-range drivers + 2x passive radiators |
| EQ | Yes |
| Frequency Response | 50Hz - 40kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Output Power | 20W |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.3 lbs / 575 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Soundcore Motion 100 vs Tribit Stormbox Pro
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- Soundcore Motion 100 vs JBL Pulse 5
- Soundcore Motion 100 vs Soundcore Glow
- Soundcore Motion 100 vs JBL Charge Essential 2
- Soundcore Motion 100 vs Bose Soundlink Flex
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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
- 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
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