JBL Flip 4 vs Ultimate Ears Megaboom 3

Last updated: August 20, 2026

Short answer: the JBL Flip 4. It ranks #63 of 136 medium speakers by sound quality at $70; the Ultimate Ears Megaboom 3 ranks #83 and costs $163, so there is not much of a tradeoff to weigh.

What the JBL Flip 4 gets right: Less bass than a Flip 5. The tradeoff: Battery failures are common.

What the Ultimate Ears Megaboom 3 offers: IP67 rated, floats, and survives drops from up to 1 meter. Set against that: Not stereo, barely any bass.

One note: the JBL Flip 4 is discontinued, but it still ranks #63 of 136 medium speakers by sound quality, ahead of most of what is still sold new, so it is worth considering used.

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

If battery life is a priority, the Ultimate Ears Megaboom 3 is rated for 20 hours versus 12 hours for the JBL Flip 4.

Buy the JBL Flip 4 at Amazon ($70) →Buy the Ultimate Ears Megaboom 3 at Amazon ($163) →

JBL Flip 4 vs Ultimate Ears Megaboom 3

Specifications Side By Side

JBL Flip 4 Ultimate Ears Megaboom 3
Price$70 Discontinued$163
Ranked#63 of 136 in Medium Size Portable Bluetooth Speakers#83 of 136 in Medium Size Portable Bluetooth Speakers
Aux InputYes-
Bass Extension (-10dB)66Hz70Hz
Battery Life12 hours (Manufacturer specified)20 hours (Manufacturer specified)
Bluetooth Latency300ms-
Party ModeYes (Connect+ up to 100 speakers)Yes (PartyUp up to 50 speakers)
Power InputMicro USBMicro USB
TWSNo-
Weight1.1 lbs / 510 g2 lbs / 925 g
Bluetooth Version4.24.2
Drivers2x 40mm fullrange2x 50mm fullrange
Dimensions6.9" x 2.8" x 2.6" (175 x 70 x 65 mm)3.4" x 8.9" x 3.4" (87 x 225 x 87 mm)
Frequency Response70Hz - 20kHz (Manufacturer specified)60Hz - 20kHz (Manufacturer specified)
Output Power16W RMS-
IP RatingIPX7IPX7
DiscontinuedYes-
Max Volume92dB98dB
Digital Aux InputNoNo
OmnidirectionalNoYes
Stereo-No
Buy the JBL Flip 4 at Amazon ($70) →Buy the Ultimate Ears Megaboom 3 at Amazon ($163) →

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

The Two Speakers In Full

JBL Flip 4: $70 Discontinued Amazon

JBL Flip 4 ranking card

Pros: Less bass than a Flip 5. Peaky lower treble.

Cons: Battery failures are common. Discontinued.

Full JBL Flip 4 review and specifications →

Aux InputYes
Bass Extension (-10dB)66Hz
Battery Life12 hours (Manufacturer specified)
Bluetooth Latency300ms
Bluetooth Version4.2
Digital Aux InputNo
Dimensions6.9" x 2.8" x 2.6" (175 x 70 x 65 mm)
DiscontinuedYes
Drivers2x 40mm fullrange
Frequency Response70Hz - 20kHz (Manufacturer specified)
IP RatingIPX7
Max Volume92dB
OmnidirectionalNo
Output Power16W RMS
Party ModeYes (Connect+ up to 100 speakers)
Power InputMicro USB
TWSNo
Weight1.1 lbs / 510 g
Check current price at Amazon ($70) →Search eBay for JBL Flip 4 →

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

Ultimate Ears Megaboom 3: $163 Amazon

Ultimate Ears Megaboom 3 ranking card

Pros: IP67 rated, floats, and survives drops from up to 1 meter. 20 hour battery life - about double most speakers this size.

Cons: Not stereo, barely any bass. 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 2018. Not technically a 360 speaker, only front and rear.

Full Ultimate Ears Megaboom 3 review and specifications →

Bass Extension (-10dB)70Hz
Battery Life20 hours (Manufacturer specified)
Bluetooth Version4.2
Digital Aux InputNo
Dimensions3.4" x 8.9" x 3.4" (87 x 225 x 87 mm)
Drivers2x 50mm fullrange
Frequency Response60Hz - 20kHz (Manufacturer specified)
IP RatingIPX7
Max Volume98dB
OmnidirectionalYes
Party ModeYes (PartyUp up to 50 speakers)
Power InputMicro USB
StereoNo
Weight2 lbs / 925 g
Check current price at Amazon ($163) →Search eBay for Ultimate Ears Megaboom 3 →

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