Short answer: the JBL Charge Essential 2 if sound quality matters most, the Ultimate Ears Boom 4 if price matters most. The JBL Charge Essential 2 ranks #35 of 136 medium speakers at $130. The Ultimate Ears Boom 4 ranks #88 at $105, $25 cheaper.
What the JBL Charge Essential 2 offers: Doubles as a power bank. IP67 rated. Close to Charge 5 performance at a lower price. Watch for: Not stereo. Slightly less bass than a Charge 5.
What the Ultimate Ears Boom 4 offers: 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. Watch for: Not much improvement over the old ones. Weak bass extension and thuddy bass. Gets distorted above 90%
Buy the JBL Charge Essential 2 if sound quality matters more than the price. Buy the Ultimate Ears Boom 4 if the price matters more than sound quality.

Specifications Side By Side
| JBL Charge Essential 2 | Ultimate Ears Boom 4 | |
|---|---|---|
| Price | $130 | $105 |
| Ranked | #35 of 136 in Medium Size Portable Bluetooth Speakers | #88 of 136 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes |
| Bass Extension (-10dB) | ~55Hz | - |
| Battery Life | 20 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| EQ | No | Yes (via app) |
| Party Mode | No | - |
| Power Bank | Yes (USB-A) | No |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| Weight | 2.1 lbs / 930 g | 1.4 lbs / 620 g |
| Bluetooth Version | 5.1 | 5.1 |
| Dimensions | 8.8" x 3.8" x 3.7" (223 x 96.5 x 94 mm) | 7.2" x 2.9" x 2.9" (184 x 73 x 73 mm) |
| Drivers | 53mm x 93mm woofer, 20mm tweeter | 2x 1.57" (40mm) active drivers + 2x 1.81" x 2.57" (46.1 x 65.2mm) passive radiators |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | - |
| IP Rating | IPX7 | IP67 |
| Power Input | USB-C | USB-C |
| Output Power | 40W | - |
| Digital Aux Input | No | No |
| TWS | - | Yes |
| Built in Microphone | - | No |
| Aux Input | - | No |
| Max Volume | - | 85dBC |
Related Speaker Comparisons
Other pairings from the same speaker class worth checking:
- Bose Soundlink Flex vs JBL Charge 2
- Bose Soundlink Flex vs Sony ULT Field 3
- Bose SoundLink Color II vs Ultimate Ears Boom 3
- JBL Flip Essential vs Ultimate Ears Boom 4
- JBL Flip 7 vs Ultimate Ears Boom 4
Prices on this page were last checked August 27, 2026 at 10:09 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 Charge Essential 2: $130 eBay
Pros: Doubles as a power bank. IP67 rated. Close to Charge 5 performance at a lower price.
Cons: Not stereo. Slightly less bass than a Charge 5.
Full JBL Charge Essential 2 review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | ~55Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Version | 5.1 |
| Digital Aux Input | No |
| Dimensions | 8.8" x 3.8" x 3.7" (223 x 96.5 x 94 mm) |
| Drivers | 53mm x 93mm woofer, 20mm tweeter |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Output Power | 40W |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | No |
| Weight | 2.1 lbs / 930 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- JBL Charge Essential 2 vs Bose Soundlink Flex
- JBL Charge Essential 2 vs Bose Soundlink Flex 2nd gen
- JBL Charge Essential 2 vs Tribit Xsound Plus 2
- JBL Charge Essential 2 vs Soundcore Motion 100
- JBL Charge Essential 2 vs Teufel Rockster XS
- JBL Charge Essential 2 vs Tribit Stormbox Pro
- JBL Charge Essential 2 vs Xiaomi Sound Outdoor
- JBL Charge Essential 2 vs JBL Pulse 5
- See all 74 comparisons
Ultimate Ears Boom 4: $105 Amazon eBay
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 →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 15 hours (Manufacturer specified) |
| 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 |
| Max Volume | 85dBC |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| 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
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom
- Ultimate Ears Boom 4 vs Klipsch Groove/Heritage Groove
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 2
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 3
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 4
- Ultimate Ears Boom 4 vs Sony SRS-XE300
- Ultimate Ears Boom 4 vs Tribit Stormbox
- See all 74 comparisons

