Short answer: the Walla Sound, though neither ranks well in its class. It ranks #163 of 177 medium speakers by sound quality, rated 2.2/5, at $49.99; the Ultimate Ears Megaboom 4 ranks #171, rated 2.1/5, and costs $200, so there is not much of a tradeoff to weigh. Both are rated below 3.0/5 among the 177 medium speakers, and the EarFun Uboom L, ranked #2 at $49.79, is a better place to start if sound quality matters.
The Ultimate Ears Megaboom 4 is the longer-running, tougher option. A tough waterproof speaker that floats, with USB-C charging, a long battery and PartyUp linking. It is rated for 20 hours of battery against 8 for the Walla Sound. It is rated IP67 against IPX5 for the Walla Sound. It has an adjustable EQ, which the Walla Sound lacks. The catch: A lot of distortion at higher volumes.
The Walla Sound is the lighter choice. A small shockproof speaker with an aux input, microSD playback and a built in microphone. At 0.7 lbs (300 g) it weighs much less than the Ultimate Ears Megaboom 4 at 2.4 lbs (1.1 kg). It keeps a wired aux input, which the Ultimate Ears Megaboom 4 lacks. Watch for: No bass, gets distorted when turned up.
Buy the Walla Sound. It is rated higher for sound quality than the Ultimate Ears Megaboom 4 and costs less, so only choose the other one for a particular feature it does better.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A tough waterproof speaker that floats, with USB-C charging, a long battery and PartyUp linking.
A small shockproof speaker with an aux input, microSD playback and a built in microphone.
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Specifications Side By Side
| Ultimate Ears Megaboom 4 | Walla Sound | |
|---|---|---|
| Price | $200 | $49.99 |
| Ranked | #171 of 177 in Medium Size Portable Bluetooth Speakers | #163 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Battery Life | 20 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX5 |
| Party Mode | Yes (PartyUp up to 50 speakers) | - |
| Stereo | No | No |
| Omnidirectional | Yes | No |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.1 | 5.0 |
| Dimensions | 3.4” x 3.4” x 8.9” (87 x 87 x 225 mm) | 2.7” x 2.7” x 6.3” (68 x 68 x 160 mm) |
| Drivers | 2x 50x50mm full-range + 2x 55x86mm passive radiators | 30mm metal diaphragm driver |
| TWS | Yes | Yes |
| EQ | Yes (via app) | No |
| Power Input | USB-C | Micro USB |
| Built-in Microphone | No | Yes |
| Weight | 2.4 lbs (1.1 kg) | 0.7 lbs (300 g) |
| Maximum SPL | 91dB (Manufacturer specified) | - |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Aux Input | No | Yes |
| Strap | Yes (built-in loop) | - |
| Amplifier Power | - | 10W (2 x 5W) |
| Bass Extension (-10dB) | - | ~90Hz |
| MicroSD Playback | - | Yes |
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