Soundcore 3/Soundcore Select 2 vs Ultimate Ears Megaboom 4

Last updated: August 28, 2026

Short answer: the Soundcore 3/Soundcore Select 2. It ranks #54 of 136 medium speakers by sound quality at $49.99; the Ultimate Ears Megaboom 4 ranks #132 and costs $200, so there is little reason to consider the other one.

What the Soundcore 3/Soundcore Select 2 offers: Good battery life - 20+ hours on a charge. IPX7 rated. PartyCast mode links multiple speakers; app EQ presets. Watch for: A little less bass than similar size speakers.

What the Ultimate Ears Megaboom 4 offers: IP67 rated, floats, and finally uses USB-C charging. 20 hour battery life. ‘PartyUp’ feature syncs multiple UE speakers together. Watch for: A lot of distortion at higher volumes. Rolled off treble. Not very loud. They really screwed this up

Buy the Soundcore 3/Soundcore Select 2. It ranks higher for sound quality than the Ultimate Ears Megaboom 4 and costs less, so there is no real case for the other one.

If sound quality matters at all to you, skip the Ultimate Ears Megaboom 4. It ranks near the bottom of the 136 medium speakers, so look higher up the list instead.

Soundcore 3/Soundcore Select 2 vs Ultimate Ears Megaboom 4

Specifications Side By Side

Soundcore 3/Soundcore Select 2 Ultimate Ears Megaboom 4
Price$49.99$200
Ranked#54 of 136 in Medium Size Portable Bluetooth Speakers#132 of 136 in Medium Size Portable Bluetooth Speakers
AppYesYes
Bass Extension (-10dB)60Hz-
Battery Life24 hours (Manufacturer specified)20 hours (Manufacturer specified)
EQYesYes (via app)
Bluetooth Latency180ms-
Max Volume99dB91dB
Party ModeYes (PartyCast up to 100 speakers)Yes (PartyUp up to 50 speakers)
StereoYesNo
OmnidirectionalNoYes
Weight0.8 lbs / 372 g2.4 lbs / 1.1 kg
Bluetooth Version5.05.1
Dimensions6.9" x 2.2" x 2.3" (174 x 57 x 59 mm)3.4" x 3.4" x 8.9" (87 x 87 x 225 mm)
Output Power16W-
Drivers2x 38mm (1.5") titanium diaphragm full-range drivers + 2x passive radiators2x 50x50mm full-range + 2x 55x86mm passive radiators
IP RatingIPX7IP67
Digital Aux InputNoNo
TWS-Yes
Power Input-USB-C
Built in Microphone-No

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 3/Soundcore Select 2: $49.99 Amazon eBay

Soundcore 3/Soundcore Select 2 ranking card

Pros: Good battery life - 20+ hours on a charge. IPX7 rated. PartyCast mode links multiple speakers; app EQ presets.

Cons: A little less bass than similar size speakers.

AppYes
Bass Extension (-10dB)60Hz
Battery Life24 hours (Manufacturer specified)
Bluetooth Latency180ms
Bluetooth Version5.0
Digital Aux InputNo
Dimensions6.9" x 2.2" x 2.3" (174 x 57 x 59 mm)
Drivers2x 38mm (1.5") titanium diaphragm full-range drivers + 2x passive radiators
EQYes
IP RatingIPX7
Max Volume99dB
OmnidirectionalNo
Output Power16W
Party ModeYes (PartyCast up to 100 speakers)
StereoYes
Weight0.8 lbs / 372 g

Ultimate Ears Megaboom 4: $200 Amazon eBay

Ultimate Ears Megaboom 4 ranking card

Pros: IP67 rated, floats, and finally uses USB-C charging. 20 hour battery life. ‘PartyUp’ feature syncs multiple UE speakers together.

Cons: A lot of distortion at higher volumes. Rolled off treble. Not very loud. They really screwed this up

AppYes
Battery Life20 hours (Manufacturer specified)
Bluetooth Version5.1
Built in MicrophoneNo
Digital Aux InputNo
Dimensions3.4" x 3.4" x 8.9" (87 x 87 x 225 mm)
Drivers2x 50x50mm full-range + 2x 55x86mm passive radiators
EQYes (via app)
IP RatingIP67
Max Volume91dB
OmnidirectionalYes
Party ModeYes (PartyUp up to 50 speakers)
Power InputUSB-C
StereoNo
TWSYes
Weight2.4 lbs / 1.1 kg