Ultimate Ears Boom 4 vs Sony SRS-XE300

Last updated: August 18, 2026

Short answer: the Ultimate Ears Boom 4. It ranks #88 of 136 medium speakers by sound quality at $105; the Sony SRS-XE300 ranks #92 and costs $137, so there is not much of a tradeoff to weigh.

What the Ultimate Ears Boom 4 offers: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. Watch for: Not much improvement over the old ones.

On the Sony SRS-XE300 side: IP67 rated. Set against that: Muffled sounding, not very deep bass.

Buy the Ultimate Ears Boom 4. 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 4.

Buy the Ultimate Ears Boom 4 at Amazon ($105) →Buy the Sony SRS-XE300 at Amazon ($137) →

Ultimate Ears Boom 4 vs Sony SRS-XE300

Specifications Side By Side

Ultimate Ears Boom 4 Sony SRS-XE300
Price$105$137
Ranked#88 of 136 in Medium Size Portable Bluetooth Speakers#92 of 136 in Medium Size Portable Bluetooth Speakers
AppYesYes (Sony Music Center)
Battery Life15 hours (Manufacturer specified)24 hours (Manufacturer specified)
IP RatingIP67IP67
Power InputUSB-CUSB-C
StereoYesYes
OmnidirectionalNoNo
Weight1.4 lbs / 620 g2.9 lbs / 1.3 kg
Bluetooth Version5.15.2
Dimensions7.2" x 2.9" x 2.9" (184 x 73 x 73 mm)9.4" x 4.1" x 4.7" (238 x 105 x 119 mm)
Drivers2x 1.57" (40mm) active drivers + 2x 1.81" x 2.57" (46.1 x 65.2mm) passive radiators2x 49x71mm X-Balanced speaker units + 2x passive radiators
TWSYesYes
EQYes (via app)Yes (via app)
Built in MicrophoneNoYes
Power BankNoNo
Aux InputNoNo
Max Volume85dBC-
Digital Aux InputNoNo
Party Mode-Yes (Party Connect up to 100 speakers)
Bluetooth Codecs-SBC, AAC, LDAC
Output Power-16W
Buy the Ultimate Ears Boom 4 at Amazon ($105) →Buy the Sony SRS-XE300 at Amazon ($137) →

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

The Two Speakers In Full

Ultimate Ears Boom 4: $105 Amazon

Ultimate Ears Boom 4 ranking card

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 →

AppYes
Aux InputNo
Battery Life15 hours (Manufacturer specified)
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
Max Volume85dBC
OmnidirectionalNo
Power BankNo
Power InputUSB-C
StereoYes
TWSYes
Weight1.4 lbs / 620 g
Check current price at Amazon ($105) →Search eBay for Ultimate Ears Boom 4 →

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

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

Full Sony SRS-XE300 review and specifications →

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
Check current price at Amazon ($137) →Search eBay for Sony SRS-XE300 →

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