Short answer: the Ultimate Ears Megaboom 3, if you are buying new. The JBL Flip 4 ranks higher than it (#82 vs #105 of 164 medium speakers, 3.3/5 vs 3.0/5) but is discontinued, so only consider it used; the Ultimate Ears Megaboom 3 is still sold new at $111.63.
What the JBL Flip 4 gets right: Less bass than a Flip 5. The tradeoff: Battery failures are common.
Buy the Ultimate Ears Megaboom 3 if you want one new; the JBL Flip 4 is discontinued, so only look for it used.
Battery life favors the Ultimate Ears Megaboom 3: rated for 20 hours against 12 hours for the JBL Flip 4.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Flip 4 | Ultimate Ears Megaboom 3 | |
|---|---|---|
| Price | $70 Discontinued | $111.63 |
| Ranked | #82 of 164 in Medium Size Portable Bluetooth Speakers | #105 of 164 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | No |
| Bass Extension (-10dB) | 66Hz | 70Hz |
| Battery Life | 12 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth Latency | 300ms | - |
| Party Mode | Yes (Connect+ up to 100 speakers) | Yes (PartyUp up to 50 speakers) |
| Power Input | Micro USB | Micro USB |
| TWS | No | Yes |
| Weight | 1.1 lbs (510 g) | 2 lbs (925 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 4.2 |
| Drivers | 2x 40mm fullrange | 2x 50mm fullrange |
| Dimensions | 6.9” 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 Response | 70Hz - 20kHz (Manufacturer specified) | 60Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 16W RMS | - |
| IP Rating | IPX7 | IPX7 |
| Maximum SPL | 92dB (Manufacturer specified) | 98dB (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| Omnidirectional | No | Yes |
| Bluetooth Codecs | SBC | SBC |
| App | Yes | Yes (UE | BOOM app) |
| EQ | No | Yes (App EQ) |
| Stereo | Yes | No |
| Strap | Yes (lanyard) | Yes (built-in loop) |
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- JBL Flip 6 vs JBL Flip 4
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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The Two Speakers In Full
JBL Flip 4: $70 Discontinued Amazon eBay
Newer model: the JBL Flip 7, ranked higher, rated 4.2/5.
Pros: At 510 g, JBL Flip 4 combines 2x 40mm fullrange with Bluetooth and aux. Claimed 12 hours (manufacturer specified) battery life, ipx7 protection, up to 92db and single-box playback make its feature set practical for its intended room or portable use. Measured bass extension of 66Hz (-10dB).
Cons: Bass is limited by its 66Hz specification. There is no companion app. No EQ adjustment. Battery failures are common. Discontinued.
Full JBL Flip 4 review and specifications →
| Amplifier Power | 16W RMS |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 66Hz |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 300ms |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 6.9” x 2.8” x 2.6” (175 x 70 x 65 mm) |
| Drivers | 2x 40mm fullrange |
| EQ | No |
| Frequency Response | 70Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 92dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Input | Micro USB |
| Stereo | Yes |
| Strap | Yes (lanyard) |
| TWS | No |
| Weight | 1.1 lbs (510 g) |
- Links
- Reviews, Comparisons and Sound Samples
- DLX Willington: JBL Flip 5 vs Flip 4 :Sound Battle: Almost to the size of the JBL Charge 3? More from DLXWillington →
- GYMCADDY: Best $100 Speaker? JBL Flip 4 Vs Sony XB20 Vs UE WONDERBOOM Vs Altec Mini Lifejacket 2 More from GYMCADDY →
- GYMCADDY: Best $100 Speaker? JBL Flip 4 Vs Sony XB20 Vs UE WONDERBOOM Vs Altec Mini Lifejacket 2
- Head-to-Head Comparisons
Ultimate Ears Megaboom 3: $111.63 Amazon eBay
Newer model: the Ultimate Ears Megaboom 4, ranked lower, rated 2.1/5.
Pros: IP67 rated, floats, and survives drops from up to 1 meter. 20 hour battery life: about double most speakers this size. Measured bass extension of 70Hz (-10dB).
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 →
| App | Yes (UE | BOOM app) |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 70Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 3.4” x 8.9” x 3.4” (87 x 225 x 87 mm) |
| Drivers | 2x 50mm fullrange |
| EQ | Yes (App EQ) |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 98dB (measured by Alan Ross Reviews) |
| Omnidirectional | Yes |
| Party Mode | Yes (PartyUp up to 50 speakers) |
| Power Input | Micro USB |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 2 lbs (925 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- Ultimate Ears Megaboom 3 vs Ultimate Ears Wonderboom 2
- Ultimate Ears Megaboom 3 vs Tribit Stormbox 2
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