Short answer: the Bogasing G4. It ranks #27 of 177 medium speakers by sound quality, rated 4.0/5, at $42.49; the Ultimate Ears Boom 4 ranks #112, rated 2.9/5, and costs $114.99, so there is not much of a tradeoff to weigh.
The Ultimate Ears Boom 4 is the lighter option. A tough waterproof speaker that floats, with USB-C charging, app EQ and pairing with other UE speakers. At 1.4 lbs (620 g) it weighs noticeably less than the Bogasing G4 at 1.8 lbs (830 g). It has an adjustable EQ, which the Bogasing G4 lacks. Watch for: Not much improvement over the old ones.
The Bogasing G4 is the better-sounding, longer-running choice. A light, affordable waterproof speaker with surprisingly strong bass for its size, solid loudness, long battery life and stereo pairing. It is rated for 24 hours of battery against 15 for the Ultimate Ears Boom 4. It keeps a wired aux input, which the Ultimate Ears Boom 4 lacks. Watch for: The upper treble is boosted and uneven, while the mids sit slightly behind the bass and highs, so it is not a neutral choice for vocal-focused music.
Buy the Bogasing G4. It is rated higher for sound quality than the Ultimate Ears Boom 4 and costs less, which makes it the one to get unless you need something the other one does better.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A tough waterproof speaker that floats, with USB-C charging, app EQ and pairing with other UE speakers.
A light, affordable waterproof speaker with surprisingly strong bass for its size, solid loudness, long battery life and stereo pairing.
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 4 | Bogasing G4 | |
|---|---|---|
| Price | $114.99 | $42.49 |
| Ranked | #112 of 177 in Medium Size Portable Bluetooth Speakers | #27 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Battery Life | 15 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX7 |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Weight | 1.4 lbs (620 g) | 1.8 lbs (0.83 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.1 | 5.3 |
| Dimensions | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) | 8.9”H x 2.5”W x 3.4”D (225 x 64 x 86 mm) |
| Drivers | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators | Two drivers and passive radiators |
| TWS | Yes | Yes |
| EQ | Yes (via app) | No |
| Built-in Microphone | No | - |
| Power Bank | No | - |
| Aux Input | No | Yes |
| Maximum SPL | 85dBC (Manufacturer specified) | 100dB (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | LE Audio with LC3 |
| Strap | Yes (built-in loop) | - |
| Aux Latency | - | 16ms |
| Bass Extension (-10dB) | - | 56Hz |
| Bluetooth Latency | - | 90ms |
| MicroSD Playback | - | Yes |
| Party Mode | - | No |
| Amplifier Power | - | 50W |
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