Short answer: the Ultimate Ears Wonderboom 4 if sound quality matters most, the Walla Sound if price matters most. The Ultimate Ears Wonderboom 4 ranks #87 of 142 medium speakers at $59.99. The Walla Sound ranks #129 at $49.99, $10 cheaper.
What the Ultimate Ears Wonderboom 4 offers: Small size. Watch for: 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.
What the Walla Sound offers: IPX5 water resistant, 8-hour battery life, shockproof construction, Bluetooth 5.0, MicroSD card support, AUX input, built-in HD microphone, voice assistant compatible, lightweight 300g Watch for: No bass, gets distorted when turned up. Harsh upper mids.
Buy the Ultimate Ears Wonderboom 4 if sound quality matters more than the price. Buy the Walla Sound if the price matters more than sound quality.
Skip the Walla Sound if sound quality matters to you. It ranks near the bottom of the 142 medium speakers.
There is a real battery-life gap here: the Ultimate Ears Wonderboom 4 is rated for 14 hours, the Walla Sound only 8 hours.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Ultimate Ears Wonderboom 4 | Walla Sound | |
|---|---|---|
| Price | $59.99 | $49.99 |
| Ranked | #87 of 142 in Medium Size Portable Bluetooth Speakers | #129 of 142 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | - | ~90Hz |
| Battery Life | 14 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Bluetooth Latency | - | - |
| Maximum SPL | 87dB (Manufacturer specified) | - |
| Power Input | USB-C | Micro USB |
| Stereo | No | - |
| Omnidirectional | Yes | No |
| Weight | 0.9 lbs (420 g) | 0.7 lbs (300 g) |
| IP Rating | IP67 | IPX5 |
| Bluetooth Version | 5.2 | 5.0 |
| Dimensions | 4.1" x 3.8" (104 x 95.3 mm) | 2.7" x 2.7" x 6.3" (68 x 68 x 160 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) | 30mm metal diaphragm driver |
| TWS | Yes | Yes |
| Party Mode | No | - |
| App | No | - |
| EQ | No | - |
| Built-in Microphone | No | Yes |
| Power Bank | No | - |
| Aux Input | No | Yes |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| MicroSD Playback | - | Yes |
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Prices on this page were last checked September 16, 2026 at 12:41 AM 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
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 |
| Bass Extension (-10dB) | |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | |
| 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 |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
- Links
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Walla Sound: $49.99 Walla Sound eBay
Pros: IPX5 water resistant, 8-hour battery life, shockproof construction, Bluetooth 5.0, MicroSD card support, AUX input, built-in HD microphone, voice assistant compatible, lightweight 300g. Measured bass extension of ~90Hz (-10dB).
Cons: No bass, gets distorted when turned up. Harsh upper mids.
Full Walla Sound review and specifications →
| Aux Input | Yes |
|---|---|
| Bass Extension (-10dB) | ~90Hz |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 2.7" x 2.7" x 6.3" (68 x 68 x 160 mm) |
| Drivers | 30mm metal diaphragm driver |
| IP Rating | IPX5 |
| MicroSD Playback | Yes |
| Omnidirectional | No |
| Power Input | Micro USB |
| TWS | Yes |
| Weight | 0.7 lbs (300 g) |
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