Short answer: the Bogasing M5. It ranks #61 of 177 medium speakers by sound quality, rated 3.5/5, at $52.99; the Ultimate Ears Megaboom 3 ranks #107, rated 3.0/5, and costs $191.99, which makes this an easy call rather than a real tradeoff.
What the Ultimate Ears Megaboom 3 does well: A tough waterproof speaker that floats and shrugs off drops, with a long 20 hour battery for beach and pool days. The tradeoff: Not stereo, barely any bass.
The Bogasing M5 is the better-sounding, deeper-bass choice. A compact, backpack friendly speaker with very long battery life and USB-C charging at a budget price. Its bass reaches about 61Hz before falling 10dB, against 70Hz for the Ultimate Ears Megaboom 3. It is rated for 30 hours of battery against 20 for the Ultimate Ears Megaboom 3. It keeps a wired aux input, which the Ultimate Ears Megaboom 3 lacks. The tradeoff: Front/rear driver configuration.
Buy the Bogasing M5. It is rated higher for sound quality than the Ultimate Ears Megaboom 3 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 and shrugs off drops, with a long 20 hour battery for beach and pool days.
A compact, backpack friendly speaker with very long battery life and USB-C charging at a budget price.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| Ultimate Ears Megaboom 3 | Bogasing M5 | |
|---|---|---|
| Price | $191.99 | $52.99 |
| Ranked | #107 of 177 in Medium Size Portable Bluetooth Speakers | #61 of 177 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 70Hz | 61Hz |
| Battery Life | 20 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Maximum SPL | 98dB (measured by Alan Ross Reviews) | 96dB (measured by Alan Ross Reviews) |
| Party Mode | Yes (PartyUp up to 50 speakers) | - |
| Power Input | Micro USB | USB-C |
| Stereo | No | No (front/rear drivers) |
| Omnidirectional | Yes | Yes |
| Weight | 2 lbs (925 g) | 1.7 lbs (757 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 5.3 |
| Drivers | 2x 50mm fullrange | 30W system |
| Dimensions | 3.4” x 8.9” x 3.4” (87 x 225 x 87 mm) | 6.3” x 3” x 2.8” (160 x 76 x 71 mm) |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 | IPX7 |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| App | Yes (UE | BOOM app) | No |
| Aux Input | No | Yes |
| EQ | Yes (App EQ) | Yes |
| TWS | Yes | Yes |
| Strap | Yes (built-in loop) | - |
| MicroSD Playback | - | Yes |
| Power Bank | - | Yes (USB-A) |
| USB Playback | - | Yes |
| Amplifier Power | - | 40W |
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