Soundcore Motion 300 vs Ultimate Ears Boom 4

Last updated: October 12, 2026

Short answer: the Motion 300 has more bass potential and a more useful tuning path, while the Boom 4 is the simple floating speaker for existing Ultimate Ears users. The Motion 300 sits at 3 of 175; the Boom 4 is 113 of 175.

Soundcore Motion 300 vs Ultimate Ears Boom 4

Soundcore Motion 300 vs Ultimate Ears Boom 4 is a choice between tunable fuller bass and a floating waterproof speaker. Soundcore is 3 of 175, versus Ultimate Ears at 113 of 175.

Motion 300 produces surprisingly deep bass for its size and adapts EQ to its orientation, but its default treble is muted and it can distort as volume rises. Boom 4 brings IP67 protection, USB-C, a 15-hour claim, app EQ, and pairing, yet remains a modest update with limited bass depth.

Buy the Soundcore Motion 300 if fuller bass and flexible EQ are worth a little setup.

Buy the Ultimate Ears Boom 4 if flotation and PartyUp-compatible portability are essential.

Still deciding? The full Portable Bluetooth rankings cover every ranked option.

Check Soundcore Motion 300 price at Amazon ($79.99) →Check Ultimate Ears Boom 4 price at Amazon ($129.99) →

Specifications Side By Side

Soundcore Motion 300 Ultimate Ears Boom 4
Price$79.99$129.99
Ranked#3 of 175 in Medium Size Portable Bluetooth Speakers#113 of 175 in Medium Size Portable Bluetooth Speakers
AppYesYes
Aux InputNoNo
Bass Extension (-10dB)50Hz-
Battery Life13 hours (Manufacturer specified)15 hours (Manufacturer specified)
BluetoothYesYes
Bluetooth CodecsAAC, LDAC, SBCSBC
Built-in MicrophoneYesNo
EQYes (9 band with adjustable frequency)Yes (via app)
IP RatingIPX7IP67
Bluetooth Latency216ms ldac, 200ms aac, 116ms sbc-
Maximum SPL101dB (measured by Alan Ross Reviews)85dBC (Manufacturer specified)
Power BankNoNo
StereoYesYes
OmnidirectionalPointing upNo
TWSYesYes
Weight1.7 lbs (772 g)1.4 lbs (620 g)
Bluetooth Version5.35.1
Dimensions7.9” x 3.6” x 2” (200 x 92 x 50 mm)7.2” x 2.9” x 2.9” (184 x 73 x 73 mm)
Drivers2x 50.8mm (2”) full-range drivers + 2x passive radiators2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators
Frequency Response65Hz - 40kHz (Manufacturer specified)-
Power InputUSB-CUSB-C
Amplifier Power30W-
Party ModeYes (PartyCast up to 100 speakers)-
Digital Aux InputNoNo
Strap-Yes (built-in loop)
Check Soundcore Motion 300 price at Amazon ($79.99) →Check Ultimate Ears Boom 4 price at Amazon ($129.99) →

More top alternatives to Soundcore Motion 300:

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.

As an eBay Partner, we may be compensated if you make a purchase.

The Two Speakers In Full

Soundcore Motion 300: $79.99 Amazon $79.99 eBay

Soundcore Motion 300 ranking card

Older model: the Soundcore Motion+ (ranked lower, rated 4.4/5). See every Soundcore Motion generation.

Same family: the Soundcore Motion 100 (smaller model, ranked lower, rated 3.7/5), the Soundcore Motion X500 (larger model, rated 4.1/5) and the Soundcore Motion X600 (larger model, rated 4.3/5).

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. Measured bass extension of 50Hz (-10dB).

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.

Featured on:

Full Soundcore Motion 300 review and specifications →

ReleasedOct 2023 (3 years ago)
Amplifier Power30W
AppYes
Aux InputNo
Bass Extension (-10dB)50Hz
Battery Life13 hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsAAC, LDAC, 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
Maximum SPL101dB (measured by Alan Ross Reviews)
OmnidirectionalPointing up
Party ModeYes (PartyCast up to 100 speakers)
Power BankNo
Power InputUSB-C
StereoYes
TWSYes
Weight1.7 lbs (772 g)
Check current price at Amazon ($79.99) →Search eBay for Soundcore Motion 300 →

Ultimate Ears Boom 4: $129.99 Amazon $129.99 eBay

Ultimate Ears Boom 4 ranking card

Older model: the Ultimate Ears Boom 3 (ranked lower, rated 2.9/5). See every Ultimate Ears Wonderboom, Boom and Megaboom generation.

Same family: the Ultimate Ears Wonderboom 4 (smaller model, ranked higher, rated 2.9/5) and the Ultimate Ears Megaboom 4 (larger model, ranked lower, rated 2.1/5).

Pros: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. 15 hour battery. Customizable EQ and speaker-pairing via the UE app.

Cons: Not much improvement over the old ones. Weak bass extension and thuddy bass. Gets distorted above 90%

Full Ultimate Ears Boom 4 review and specifications →

ReleasedJun 2024 (2 years ago)
AppYes
Aux InputNo
Battery Life15 hours (Manufacturer specified)
BluetoothYes
Bluetooth CodecsSBC
Bluetooth Version5.1
Built-in MicrophoneNo
Digital Aux InputNo
Dimensions7.2” x 2.9” x 2.9” (184 x 73 x 73 mm)
Drivers2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators
EQYes (via app)
IP RatingIP67
Maximum SPL85dBC (Manufacturer specified)
OmnidirectionalNo
Power BankNo
Power InputUSB-C
StereoYes
StrapYes (built-in loop)
TWSYes
Weight1.4 lbs (620 g)
Check current price at Amazon ($129.99) →Search eBay for Ultimate Ears Boom 4 →