Ultimate Ears Boom 3 vs Sony SRS-XE300

Last updated: August 18, 2026

Short answer: the Ultimate Ears Boom 3. It ranks #89 of 136 medium speakers by sound quality at $109; the Sony SRS-XE300 ranks #92 and costs $137, so there is not much of a tradeoff to weigh.

The case for the Ultimate Ears Boom 3: Rich and warm bass without muddying mix, crisp highs, excellent 15-hour battery life, stable Bluetooth connectivity, IP67 rated and floats, rugged fabric shell, can pair up to 150 speakers via PartyUp. The tradeoff: Not stereo, barely any bass, recessed treble.

What the Sony SRS-XE300 offers: IP67 rated. Watch for: Muffled sounding, not very deep bass.

Buy the Ultimate Ears Boom 3. It ranks higher for sound quality than the Sony SRS-XE300 and costs less, so there is no real case for the other one.

If battery life is a priority, the Sony SRS-XE300 is rated for 24 hours versus 15 hours for the Ultimate Ears Boom 3.

Ultimate Ears Boom 3 vs Sony SRS-XE300

Specifications Side By Side

Ultimate Ears Boom 3 Sony SRS-XE300
Price$109.00$137
Ranked#89 of 136 in Medium Size Portable Bluetooth Speakers#92 of 136 in Medium Size Portable Bluetooth Speakers
Bass Extension (-10dB)91Hz-
Battery Life15 hours (Manufacturer specified)24 hours (Manufacturer specified)
Party ModeYes (PartyUp up to 50 speakers)Yes (Party Connect up to 100 speakers)
Power InputMicro USBUSB-C
StereoYesYes
OmnidirectionalYesNo
Weight1.3 lbs / 608 g2.9 lbs / 1.3 kg
IP RatingIP67IP67
Bluetooth Version4.25.2
Dimensions7.2" x 2.9" (184 x 73 mm)9.4" x 4.1" x 4.7" (238 x 105 x 119 mm)
Drivers2x 2" active drivers + 2x 2" x 4" passive radiators2x 49x71mm X-Balanced speaker units + 2x passive radiators
TWSYesYes
EQYes (via app)Yes (via app)
Built in MicrophoneNoYes
Max Volume87dB-
Digital Aux InputNoNo
Bluetooth Codecs-SBC, AAC, LDAC
App-Yes (Sony Music Center)
Power Bank-No
Aux Input-No
Output Power-16W

More useful head-to-heads from the same speaker class:

The Two Speakers In Full

Ultimate Ears Boom 3: $109.00 Amazon

Ultimate Ears Boom 3 ranking card

Pros: Rich and warm bass without muddying mix, crisp highs, excellent 15-hour battery life, stable Bluetooth connectivity, IP67 rated and floats, rugged fabric shell, can pair up to 150 speakers via PartyUp

Cons: Not stereo, barely any bass, recessed treble. You can tell from the micro USB that they are just feeding you the same crap hardware over and over, this is inexcusable for a product released in 2021. Lots of mentions of failing batteries on amazon. Not technically a 360 speaker, only front and rear.

Bass Extension (-10dB)91Hz
Battery Life15 hours (Manufacturer specified)
Bluetooth Version4.2
Built in MicrophoneNo
Digital Aux InputNo
Dimensions7.2" x 2.9" (184 x 73 mm)
Drivers2x 2" active drivers + 2x 2" x 4" passive radiators
EQYes (via app)
IP RatingIP67
Max Volume87dB
OmnidirectionalYes
Party ModeYes (PartyUp up to 50 speakers)
Power InputMicro USB
StereoYes
TWSYes
Weight1.3 lbs / 608 g

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Sony SRS-XE300: $137 Amazon

Sony SRS-XE300 ranking card

Pros: IP67 rated. Orientation-aware playback switches to stereo when laid flat. Party Connect links up to 100 speakers; fast charging (10 min charge = ~70 min playback).

Cons: Muffled sounding, not very deep bass. Hollow sounding. Worse than a XB43

AppYes (Sony Music Center)
Aux InputNo
Battery Life24 hours (Manufacturer specified)
Bluetooth CodecsSBC, AAC, LDAC
Bluetooth Version5.2
Built in MicrophoneYes
Digital Aux InputNo
Dimensions9.4" x 4.1" x 4.7" (238 x 105 x 119 mm)
Drivers2x 49x71mm X-Balanced speaker units + 2x passive radiators
EQYes (via app)
IP RatingIP67
OmnidirectionalNo
Output Power16W
Party ModeYes (Party Connect up to 100 speakers)
Power BankNo
Power InputUSB-C
StereoYes
TWSYes
Weight2.9 lbs / 1.3 kg

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