Short answer: the Ultimate Ears Wonderboom 4, though neither ranks well in its class. It ranks #89 of 144 medium speakers by sound quality, rated 2.9/5, at $59.99. The Dayton Audio Boost ranks #123, rated 2.4/5, at $29.98, $30.01 cheaper, a saving that is not big enough to make up the sound-quality gap. Both are rated below 3.0/5 among the 144 medium speakers, and the Earfun Uboom L, ranked #1 at $49.79, is a better place to start if sound quality matters.
Why pick the Ultimate Ears Wonderboom 4: Small size. Watch for: Bass isn’t as deep as the top-ranked speakers and is a little thuddy.
What the Dayton Audio Boost does well: Compact soda-can design, dual passive radiators, IPX5 waterproof, wireless stereo pairing capability, MicroSD card support. The tradeoff: Some midrange peaks, treble slightly rolled off.
Buy the Ultimate Ears Wonderboom 4. It is rated higher for sound quality, and saving $30.01 with the Dayton Audio Boost does not make up for the sound-quality gap.
Battery life favors the Ultimate Ears Wonderboom 4: rated for 14 hours against 6 hours for the Dayton Audio Boost.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Ultimate Ears Wonderboom 4 | Dayton Audio Boost | |
|---|---|---|
| Price | $59.99 | $29.98 |
| Ranked | #89 of 144 in Medium Size Portable Bluetooth Speakers | #123 of 144 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 14 hours (Manufacturer specified) | 6 hours (Manufacturer specified) |
| Maximum SPL | 87dB (Manufacturer specified) | - |
| Power Input | USB-C | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| Weight | 0.9 lbs (420 g) | 0.9 lbs (426 g) |
| IP Rating | IP67 | IPX7 |
| Bluetooth Version | 5.2 | 5.0 |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) | 3.5” x 3.5” x 4.3” (88.9 x 88.9 x 109.2 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) | 2x 1.5” full-range drivers + 2x passive radiators |
| TWS | Yes | Yes |
| Party Mode | No | - |
| App | No | No |
| EQ | No | No |
| Built-in Microphone | No | No |
| Power Bank | No | - |
| Aux Input | No | Yes |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Strap | Yes (built-in loop) | - |
| Bass Extension (-10dB) | - | 87Hz |
| MicroSD Playback | - | Yes |
Related Speaker Comparisons
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- Ultimate Ears Wonderboom 4 vs Soundcore Motion 300
- Ultimate Ears Wonderboom 4 vs Soundcore Motion+
- Soundcore Boost “upgraded” 2021 vs Ultimate Ears Wonderboom 4
- Ultimate Ears Wonderboom 4 vs Minirig 4
Prices on this page were last checked September 26, 2026 at 11:14 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 (rated 2.9/5), the Ultimate Ears Wonderboom 2 (rated 2.9/5) and the Ultimate Ears Wonderboom (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 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
- Ultimate Ears Wonderboom 4 vs Ultimate Ears Boom 4
- Ultimate Ears Wonderboom 4 vs Tribit Stormbox 2
- See all 112 comparisons
Dayton Audio Boost: $29.98 Amazon eBay
Pros: Compact soda-can design, dual passive radiators, IPX5 waterproof, wireless stereo pairing capability, MicroSD card support. Measured bass extension of 87Hz (-10dB).
Cons: Some midrange peaks, treble slightly rolled off. Not much bass. Same hardware as the Boat Stone 350/352/358
Full Dayton Audio Boost review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | 87Hz |
| Battery Life | 6 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.0 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 3.5” x 3.5” x 4.3” (88.9 x 88.9 x 109.2 mm) |
| Drivers | 2x 1.5” full-range drivers + 2x passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 0.9 lbs (426 g) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
- Dayton Audio Boost vs Tribit Stormbox Mini+
- Dayton Audio Boost vs Marshall Emberton II
- Dayton Audio Boost vs Marshall Emberton III
- Dayton Audio Boost vs Ultimate Ears Boom 4
- Dayton Audio Boost vs Soundcore 2
- Dayton Audio Boost vs Tribit Stormbox 2
- Dayton Audio Boost vs Tribit Xsound Go
- Dayton Audio Boost vs JBL Grip
- See all 14 comparisons