Short answer: these speakers occupy different size classes: Wonderboom 4 is built for grab-and-go floating use, while Charge 6 is the better music speaker. The Charge 6 ranks 84 places ahead at 11 of 150, versus 95 of 150 for the Wonderboom 4.
Wonderboom 4 keeps the package very small while offering IP67 protection, flotation, and USB-C. Its bass is shallow and somewhat thuddy, so it is best viewed as a travel companion rather than a speaker for full-range music.
Charge 6 delivers stronger bass plus flatter mids and treble than Charge 5. Its default balance is still bass-boosted and V-shaped, but it has more scale and a stronger foundation for music.
Buy the Ultimate Ears Wonderboom 4 if smallest size, flotation, and IP67 durability are non-negotiable.
Buy the JBL Charge 6 if you want substantially stronger music performance from a portable speaker.
If battery life is a priority, the JBL Charge 6 is rated for 24 hours versus 14 hours for the Ultimate Ears Wonderboom 4.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Ultimate Ears Wonderboom 4 | JBL Charge 6 | |
|---|---|---|
| Price | $59.99 | $149.95 |
| Ranked | #95 of 150 in Medium Size Portable Bluetooth Speakers | #11 of 150 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 14 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Maximum SPL | 87dB (Manufacturer specified) | 102dB (measured by Alan Ross Reviews) |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Yes | No |
| Weight | 0.9 lbs (420 g) | 2.2 lbs (990 g) |
| IP Rating | IP67 | IP68 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.2 | 5.4 |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) | 9” x 3.9” x 3.7” (228.8 x 98.5 x 94 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) | 53mm x 93mm woofer, 20mm tweeter |
| TWS | Yes | Yes |
| Party Mode | No | Yes (Auracast) |
| App | No | Yes |
| EQ | No | Yes (7 band) |
| Built-in Microphone | No | No |
| Power Bank | No | Yes (USB-C, 5V/2.4A) |
| Aux Input | No | No |
| Digital Aux Input | No | Yes (USB-C) |
| Bluetooth Codecs | SBC | SBC, AAC |
| Strap | Yes (built-in loop) | Yes (detachable strap) |
| Bass Extension (-10dB) | - | 53Hz |
| Frequency Response | - | 56Hz - 20kHz (-6dB) (Manufacturer specified) |
| Amplifier Power | - | 45W |
Related Speaker Comparisons
How JBL Charge 6 compares with other leading options:
- Earfun Uboom L vs JBL Charge 6
- JBL Charge 6 vs Soundcore Motion 300
- JBL Charge 6 vs Soundcore Motion+
- Soundcore Boost “upgraded” 2021 vs JBL Charge 6
- JBL Charge 6 vs Denon Envaya DSB-250BT
Prices on this page were last checked September 30, 2026 at 2:57 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
Ultimate Ears Wonderboom 4: $59.99 Amazon eBay
Older models: the Ultimate Ears Wonderboom 3 (ranked lower, rated 2.9/5), the Ultimate Ears Wonderboom 2 (ranked lower, rated 2.9/5) and the Ultimate Ears Wonderboom (ranked lower, rated 2.9/5).
Pros: Small size.
Cons: Bass isn’t as deep as the top-ranked speakers and is a little thuddy. Not much improvement over the previous Ultimate Ears Wonderboom 3 besides the USB-C charging port.
Full Ultimate Ears Wonderboom 4 review and specifications →
| App | No |
|---|---|
| Aux Input | No |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 87dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Wonderboom 3
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Megaboom 3
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Wonderboom 2
- Ultimate Ears Wonderboom 4 vs LG Xboom Grab
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Wonderboom
- Ultimate Ears Wonderboom 4 vs Soundcore 2
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- Ultimate Ears Wonderboom 4 vs Tribit Stormbox 2
- See all 132 comparisons
JBL Charge 6: $149.95 Amazon B&H Photo Video eBay
Older models: the JBL Charge 5 (ranked lower, rated 4/5), the JBL Charge 4 (ranked lower, rated 3.5/5), the JBL Charge 3 (ranked lower, rated 3.2/5) and the JBL Charge 2 (ranked lower, rated 3.2/5).
Pros: Seems more neutral than the Charge 5. Flatter frequency response through the mids and treble as the Charge 5 was quite rolled off up high. Use this EQ from Joy/Oluv and turn down the lowest bass slider for the best sound quality. Oluv has even more paid EQs specifically for the GG and TL models indoors and outdoors here. IP68 protection, a 7-band app EQ, Auracast, USB-C charging and a power bank output. Measured bass extension of 53Hz (-10dB).
Cons: Still some boosted bass by default. Mids are recessed. Bright above 2kHz. Quite a V shaped frequency response.
Full JBL Charge 6 review and specifications →
| Amplifier Power | 45W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 53Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 9” x 3.9” x 3.7” (228.8 x 98.5 x 94 mm) |
| Drivers | 53mm x 93mm woofer, 20mm tweeter |
| EQ | Yes (7 band) |
| Frequency Response | 56Hz - 20kHz (-6dB) (Manufacturer specified) |
| IP Rating | IP68 |
| Maximum SPL | 102dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C, 5V/2.4A) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (detachable strap) |
| TWS | Yes |
| Weight | 2.2 lbs (990 g) |
- Links
- Reviews, Comparisons and Sound Samples
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6 vs JBL Xtreme 4 - outdoor test More from Oluv’Sone →
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6 vs SoundCore Boom 2 - David vs Goliath
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6 vs JBL Xtreme 4 - basstest (bigger=better?)
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6, Xtreme 4 & Earfun UBoom X - taking sound to the top
- Alan Ross Reviews: JBL Charge 6 or the JBL Charge 5? don’t go home till you watch this! More from alanrossreviews →
- Alan Ross Reviews: JBL Xtreme 4 vs Flip 7 vs Charge 6 – The ULTIMATE JBL Speaker Showdown!
- Oluv Patreon: Marshall Middleton II - better with EQ?
- Oluv Patreon: An evening with the “best portable speakers”?
- Oluv Patreon: Bose Soundlink Plus vs JBL Charge 6 - fight!
- Mateusz Cholewa: JBL Charge 6 🎶👌Unboxing 📦vs Jbl Charge 5 Short Test Audio i Hz. More from Mateusz Cholewa →
- GYMCADDY: JBL Charge 6 Review - Worth Upgrading Even If You Have The JBL Charge 5 More from GYMCADDY →
- Oluv Patreon: JBL Charge 6 - good or bad?
- Joy & Oluv’Sone: JBL, Bose, B&O, Sonos, Earfun, SoundCore… which portable speaker sounds best?
- M1MTechChannel: Welche JBL Partybox ist die BESTE ? Alle Partyboxen im Vergleich | 2026 More from M1MTechChannel →
- Head-to-Head Comparisons