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 Boom 3 ranks #113, rated 2.9/5, and costs $132.99, which makes this an easy call rather than a real tradeoff.
Why pick the Ultimate Ears Boom 3: A rugged waterproof speaker that floats, with a fabric shell, a stable Bluetooth connection and PartyUp linking for many speakers. It plays in stereo from a single unit, unlike the Bogasing M5. Watch for: Not stereo, barely any bass, recessed treble.
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 91Hz for the Ultimate Ears Boom 3. It is rated for 30 hours of battery against 15 for the Ultimate Ears Boom 3. It keeps a wired aux input, which the Ultimate Ears Boom 3 lacks. The catch: Front/rear driver configuration.
Buy the Bogasing M5. It is rated higher for sound quality than the Ultimate Ears Boom 3 and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A rugged waterproof speaker that floats, with a fabric shell, a stable Bluetooth connection and PartyUp linking for many speakers.
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 Boom 3 | Bogasing M5 | |
|---|---|---|
| Price | $132.99 | $52.99 |
| Ranked | #113 of 177 in Medium Size Portable Bluetooth Speakers | #61 of 177 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 91Hz | 61Hz |
| Battery Life | 15 hours (Manufacturer specified) | 30 hours (Manufacturer specified) |
| Party Mode | Yes (PartyUp up to 50 speakers) | - |
| Power Input | Micro USB | USB-C |
| Stereo | Yes | No (front/rear drivers) |
| Omnidirectional | Yes | Yes |
| Weight | 1.3 lbs (608 g) | 1.7 lbs (757 g) |
| IP Rating | IP67 | IPX7 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 5.3 |
| Dimensions | 7.2” x 2.9” (184 x 73 mm) | 6.3” x 3” x 2.8” (160 x 76 x 71 mm) |
| Drivers | 2x 2” active drivers + 2x 2” x 4” passive radiators | 30W system |
| TWS | Yes | Yes |
| EQ | Yes (via app) | Yes |
| Built-in Microphone | No | - |
| Maximum SPL | 87dB (Manufacturer specified) | 96dB (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| App | Yes (Ultimate Ears BOOM & MEGABOOM app) | No |
| Aux Input | No | Yes |
| Strap | Yes (built-in loop) | - |
| MicroSD Playback | - | Yes |
| Power Bank | - | Yes (USB-A) |
| USB Playback | - | Yes |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | - | 40W |
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