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 Wonderboom 2 ranks #110, rated 2.9/5, and costs $80, so there is little reason to consider the other one.
The Ultimate Ears Wonderboom 2 is the lighter option. A small waterproof speaker that floats and is light enough to toss in a bag for the pool or beach. At 0.9 lbs (420 g) it weighs much less than the Bogasing G4 at 1.8 lbs (830 g). The tradeoff: Not stereo, barely any bass, recessed treble.
The Bogasing G4 is the better-sounding, deeper-bass choice. A light, affordable waterproof speaker with surprisingly strong bass for its size, solid loudness, long battery life and stereo pairing. Its bass reaches about 56Hz before falling 10dB, against 82Hz for the Ultimate Ears Wonderboom 2. Alan Ross Reviews measured it at 100dB at full volume, against 88dB for the Ultimate Ears Wonderboom 2. It is rated for 24 hours of battery against 12 for the Ultimate Ears Wonderboom 2. 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 Wonderboom 2 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A small waterproof speaker that floats and is light enough to toss in a bag for the pool or beach.
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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Ultimate Ears Wonderboom 2 | Bogasing G4 | |
|---|---|---|
| Price | $80 | $42.49 |
| Ranked | #110 of 177 in Medium Size Portable Bluetooth Speakers | #27 of 177 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | 82Hz | 56Hz |
| Battery Life | 12 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Maximum SPL | 88dB (measured by Alan Ross Reviews) | 100dB (measured by Alan Ross Reviews) |
| Power Input | Micro USB | USB-C |
| Stereo | No | Yes |
| Omnidirectional | Yes | No |
| Weight | 0.9 lbs (420 g) | 1.8 lbs (0.83 kg) |
| IP Rating | IP67 | IPX7 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.1 | 5.3 |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) | 8.9”H x 2.5”W x 3.4”D (225 x 64 x 86 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators | Two drivers and passive radiators |
| TWS | Yes | Yes |
| Party Mode | No | No |
| App | No | No |
| EQ | No | No |
| Built-in Microphone | No | - |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | LE Audio with LC3 |
| Aux Input | No | Yes |
| Strap | Yes (built-in loop) | - |
| Aux Latency | - | 16ms |
| Bluetooth Latency | - | 90ms |
| MicroSD Playback | - | Yes |
| Amplifier Power | - | 50W |
Related Speaker Comparisons
More top alternatives to Bogasing G4: