Soundcore Motion 300 vs Sony ULT Field 3

Last updated: August 28, 2026

Short answer: the Soundcore Motion 300. It ranks #2 of 136 medium speakers by sound quality at $79.99; the Sony ULT Field 3 ranks #57 and costs $148, so there is not much of a tradeoff to weigh.

What the Soundcore Motion 300 offers: Pretty deep bass for the small size. Pocket size in a big pocket. Can be used in stereo facing you, or omnidirectional lying down. Ability to have a custom EQ for each orientation, standing, lying flat, hanging. Try the Uboom L EQs from Oluv for a more neutral sound. Watch for: Without the above EQ or turning the top 2 treble EQ bars to max, this speaker is very rolled off in the treble and will rank around #50 in the rankings. Bassup mode is worse than Signature. Not quite as detailed or neutral as higher ranked speakers. Slight bass distortion when turned up.

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 300. It ranks higher for sound quality than the Sony ULT Field 3 and costs less, which settles it without a real tradeoff to make.

Battery life favors the Sony ULT Field 3: rated for 24 hours against 13 hours for the Soundcore Motion 300.

Soundcore Motion 300 vs Sony ULT Field 3

Specifications Side By Side

Soundcore Motion 300 Sony ULT Field 3
Price$79.99$148
Ranked#2 of 136 in Medium Size Portable Bluetooth Speakers#57 of 136 in Medium Size Portable Bluetooth Speakers
AppYesYes
Aux InputNoNo
Bass Extension (-10dB)50Hz-
Battery Life13 hours (Manufacturer specified)24 hours (Manufacturer specified)
Bluetooth CodecsLDAC, SBCSBC, AAC, LDAC
Built in MicrophoneYesYes
EQYes (9 band with adjustable frequency)Yes (App + ULT button)
IP RatingIPX7IP67
Bluetooth Latency216ms ldac, 200ms aac, 116ms sbc-
Max Volume101dB-
Power BankNoYes (USB-C, 5V/1.5A)
StereoYesYes
OmnidirectionalPointing upNo
TWSYesYes
Weight1.7 lbs / 772 g2.6 lbs / 1.2 kg
Bluetooth Version5.35.2
Dimensions7.9" x 3.6" x 2" (200 x 92 x 50 mm)10.1" x 4.4" x 3.1" (256 x 113 x 79 mm)
Drivers2x 50.8mm (2") full-range drivers + 2x passive radiators1x 20mm tweeter + 1x 86mm x 46mm woofer
Frequency Response65Hz - 40kHz (Manufacturer specified)-
Power InputUSB-CUSB-C
Output Power30W27W
Party ModeYes (PartyCast up to 100 speakers)Yes (Party Connect up to 100 speakers)
Digital Aux InputNoNo

A few more comparisons worth a look in the same class:

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 300: $79.99 Amazon eBay

Soundcore Motion 300 ranking card

Pros: Pretty deep bass for the small size. Pocket size in a big pocket. Can be used in stereo facing you, or omnidirectional lying down. Ability to have a custom EQ for each orientation, standing, lying flat, hanging. Try the Uboom L EQs from Oluv for a more neutral sound.

Cons: Without the above EQ or turning the top 2 treble EQ bars to max, this speaker is very rolled off in the treble and will rank around #50 in the rankings. Bassup mode is worse than Signature. Not quite as detailed or neutral as higher ranked speakers. Slight bass distortion when turned up.

AppYes
Aux InputNo
Bass Extension (-10dB)50Hz
Battery Life13 hours (Manufacturer specified)
Bluetooth CodecsLDAC, SBC
Bluetooth Latency216ms ldac, 200ms aac, 116ms sbc
Bluetooth Version5.3
Built in MicrophoneYes
Digital Aux InputNo
Dimensions7.9" x 3.6" x 2" (200 x 92 x 50 mm)
Drivers2x 50.8mm (2") full-range drivers + 2x passive radiators
EQYes (9 band with adjustable frequency)
Frequency Response65Hz - 40kHz (Manufacturer specified)
IP RatingIPX7
Max Volume101dB
OmnidirectionalPointing up
Output Power30W
Party ModeYes (PartyCast up to 100 speakers)
Power BankNo
Power InputUSB-C
StereoYes
TWSYes
Weight1.7 lbs / 772 g

Sony ULT Field 3: $148 Amazon eBay

Sony ULT Field 3 ranking card

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.

AppYes
Aux InputNo
Battery Life24 hours (Manufacturer specified)
Bluetooth CodecsSBC, AAC, LDAC
Bluetooth Version5.2
Built in MicrophoneYes
Digital Aux InputNo
Dimensions10.1" x 4.4" x 3.1" (256 x 113 x 79 mm)
Drivers1x 20mm tweeter + 1x 86mm x 46mm woofer
EQYes (App + ULT button)
IP RatingIP67
OmnidirectionalNo
Output Power27W
Party ModeYes (Party Connect up to 100 speakers)
Power BankYes (USB-C, 5V/1.5A)
Power InputUSB-C
StereoYes
TWSYes
Weight2.6 lbs / 1.2 kg