Ultimate Ears Boom 4 Review: Ranked #110 of 164

Last updated: October 5, 2026

The Ultimate Ears Boom 4 ranks #110 out of 164 total Medium Size Portable Bluetooth Speakers for sound quality. See all Portable Bluetooth rankings for every top pick.

Brand: Ultimate Ears

Prices on this page were last checked October 4, 2026 at 9:58 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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Ultimate Ears Boom 4 - ranked #110 of 164 Medium Size Portable Bluetooth Speakers · Editor's rating 2.9/5
Check price at Amazon ($149.99) →

#110 Ultimate Ears Boom 4: $149.99 Amazon eBay

Older model: the Ultimate Ears Boom 3 (ranked lower, rated 2.9/5).

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%

Related speakers: Ultimate Ears Boom 3.

How it compares: Just above it: Ultimate Ears Wonderboom - $71 cheaper, 5 fewer hours of battery life. Just below it: Ultimate Ears Boom 3 - $15 cheaper.

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 ($149.99) →Search eBay for Ultimate Ears Boom 4 →

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Questions about the Ultimate Ears Boom 4? Ask other owners on r/WirelessSpeakers.