Short answer: the JBL Flip Essential 3 SE, if you are buying new. The JBL Flip Essential ranks higher than the Ultimate Ears Boom 4 (#90 vs #113 of 175 medium speakers) but is discontinued; its replacement, the JBL Flip Essential 3 SE, is rated 3.6/5 at $113.82 and is still sold new.
The JBL Flip Essential is the better-sounding, lighter option. A genuinely portable 1 lbs (471 g) speaker with IPX7 water resistance, a 3.5mm aux input and 16W output from two full-range drivers. At 1 lbs (471 g) it weighs noticeably less than the Ultimate Ears Boom 4 at 1.4 lbs (620 g). It keeps a wired aux input, which the Ultimate Ears Boom 4 lacks. The tradeoff: Bass is lighter than the JBL Flip 5 and the 80Hz claimed low-frequency limit means it cannot deliver real low-end weight.
The Ultimate Ears Boom 4 is the longer-running pick. IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. It is rated for 15 hours of battery against 10 for the JBL Flip Essential. It has an adjustable EQ, which the JBL Flip Essential lacks. It plays in stereo from a single unit, unlike the JBL Flip Essential. The catch: Not much improvement over the old ones.
Buy the JBL Flip Essential 3 SE, the replacement for the discontinued JBL Flip Essential; it is rated higher for sound quality than the Ultimate Ears Boom 4.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| JBL Flip Essential | Ultimate Ears Boom 4 | |
|---|---|---|
| Price | $130 Discontinued | $129.99 |
| Ranked | #90 of 175 in Medium Size Portable Bluetooth Speakers | #113 of 175 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes |
| Battery Life | 10 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| EQ | No | Yes (via app) |
| Party Mode | No | - |
| Weight | / 1 lbs (471 g) | 1.4 lbs (620 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.1 | 5.1 |
| Drivers | 2x 40mm fullrange | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators |
| Dimensions | 6.7” x 2.5” x 2.5” (169 x 64 x 64 mm) | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) |
| Frequency Response | 80Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 16W RMS | - |
| Aux Input | Yes (3.5mm) | No |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | No | No |
| IP Rating | IPX7 | IP67 |
| Digital Aux Input | No | No |
| Omnidirectional | No | No |
| Stereo | No | Yes |
| TWS | No | Yes |
| Power Input | Micro USB | USB-C |
| Power Bank | - | No |
| Maximum SPL | - | 85dBC (Manufacturer specified) |
| Strap | - | Yes (built-in loop) |
Related Speaker Comparisons
How JBL Flip Essential compares with other leading options:
- EarFun Uboom L vs JBL Flip Essential
- Soundcore Motion 300 vs JBL Flip Essential
- Soundcore Motion+ vs JBL Flip Essential
- Soundcore Boost “upgraded” 2021 vs JBL Flip Essential
- JBL Flip Essential vs Minirig 4
Prices on this page were last checked October 12, 2026 at 4:13 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 Essential: $130 Discontinued eBay
Newer model: the JBL Flip Essential 3 SE, ranked higher, estimated 3.6/5, released Apr 2026. See every JBL Flip Essential generation.
Pros: A genuinely portable 471g speaker with IPX7 water resistance, a 3.5mm aux input and 16W output from two full-range drivers. It is a simple, no-app option for wired sources, travel and casual listening where its cylindrical shape and modest size are a genuine advantage.
Cons: Bass is lighter than the JBL Flip 5 and the 80Hz claimed low-frequency limit means it cannot deliver real low-end weight. Battery life is only a claimed 10 hours, there is no speakerphone, EQ or party mode, and its older Bluetooth 4.1 platform and discontinued status make it a basic used-market choice.
Full JBL Flip Essential review and specifications →
| Released | Nov 2019 (6 years ago) |
|---|---|
| Amplifier Power | 16W RMS |
| App | No |
| Aux Input | Yes (3.5mm) |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 6.7” x 2.5” x 2.5” (169 x 64 x 64 mm) |
| Drivers | 2x 40mm fullrange |
| EQ | No |
| Frequency Response | 80Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | No |
| Power Input | Micro USB |
| Stereo | No |
| TWS | No |
| Weight | / 1 lbs (471 g) |
- Links
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Ultimate Ears Boom 4: $129.99 Amazon $129.99 eBay
Older model: the Ultimate Ears Boom 3 (ranked lower, rated 2.9/5). See every Ultimate Ears Wonderboom, Boom and Megaboom generation.
Same family: the Ultimate Ears Wonderboom 4 (smaller model, ranked higher, rated 2.9/5) and the Ultimate Ears Megaboom 4 (larger model, ranked lower, rated 2.1/5).
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%
Full Ultimate Ears Boom 4 review and specifications →
| Released | Jun 2024 (2 years ago) |
|---|---|
| App | Yes |
| Aux Input | No |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) |
| Drivers | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 85dBC (Manufacturer specified) |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.4 lbs (620 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Boom 4 vs Ultimate Ears Boom 3
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