Short answer: the Earfun Uboom L for the higher ranking, the Bogasing G4 for the lower price. The Earfun Uboom L ranks #1 of 134 medium speakers at $50. The Bogasing G4 ranks #23 at $39.59, $10.41 cheaper.
The case for the Bogasing G4: Clear sound with punchy bass, exceptional 24-hour battery life, IPX7 waterproof, multiple sound modes for different music styles. The tradeoff: Some boosted treble that’s wavy up top.
What the Earfun Uboom L gets right: Tuned by Oluv and he knocked it out of the park. Set against that: Latency is high (400ms) without turning on low latency mode (66ms) which doesn’t work when two speakers are TWS paired.
Buy the Bogasing G4 if the price matters more than the ranking. Buy the Earfun Uboom L if the ranking matters more than the price.
Specifications Side By Side
| Bogasing G4 | Earfun Uboom L | |
|---|---|---|
| Price | $39.59 | $50 after coupon UBOOMLWC |
| Ranked | #23 of 134 in Medium Size Portable Bluetooth Speakers | #1 of 134 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes (firmware >= 1.2.6) |
| Aux Input | Yes | Yes |
| Aux Latency | 16ms | 216ms |
| Bass Extension (-10dB) | 56Hz | 56Hz |
| Battery Life | 24 hours (Manufacturer specified) | 16 hours (Manufacturer specified) |
| EQ | No | Yes (10 band, firmware >= 1.2.6) |
| IP Rating | IPX7 | IP67 |
| Bluetooth Latency | 90ms | 400ms normal / 66ms low latency mode |
| Max Volume | 100dB | 103dB |
| MicroSD Playback | Yes | - |
| Party Mode | No | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| TWS | Yes | Yes |
| Weight | 1.8 lbs / 0.83 kg | 1.4 lbs / 650 g |
| Bluetooth Codecs | LE Audio with LC3 | AAC, SBC |
| Output Power | 50W | 28W |
| Drivers | Two drivers and passive radiators | 2x 55mm drivers + 2x passive radiators |
| Bluetooth Version | 5.3 | 5.0 |
| Built in Microphone | - | Yes |
| Power Bank | - | No |
| Dimensions | - | 3.1" x 8.3" x 2.8" (78 x 210 x 72 mm) |
The Two Speakers In Full
Bogasing G4: $39.59 Amazon
Pros: Clear sound with punchy bass, exceptional 24-hour battery life, IPX7 waterproof, multiple sound modes for different music styles, dual pairing support
Cons: Some boosted treble that’s wavy up top. Slightly dipped mids. Super Bass and vocal mode seem identical.
| App | No |
|---|---|
| Aux Input | Yes |
| Aux Latency | 16ms |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | LE Audio with LC3 |
| Bluetooth Latency | 90ms |
| Bluetooth Version | 5.3 |
| Drivers | Two drivers and passive radiators |
| EQ | No |
| IP Rating | IPX7 |
| Max Volume | 100dB |
| MicroSD Playback | Yes |
| Output Power | 50W |
| Party Mode | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.8 lbs / 0.83 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Links
Earfun Uboom L: $50 after coupon UBOOMLWC Amazon Myearfun
Pros: Tuned by Oluv and he knocked it out of the park. The audiophile choice. Extremely neutral, possibly the best of any modern Bluetooth speaker slightly behind the Vifa Helsinki. This is the only speaker that sounds correct at every volume level. Other speakers will need a different EQ at each volume level. For maximum volume without distortion use max volume - 1 step for most songs. Oluv left another higher volume for songs that are quiet. Amazing sounding at low levels as it boosts bass and treble at low levels to account for the equal-loudness contour.
Cons: Latency is high (400ms) without turning on low latency mode (66ms) which doesn’t work when two speakers are TWS paired. Low latency mode can be turned on by pressing the Bluetooth button twice. If latency in TWS paired mode is a very important feature, like if you watch a lot of video, you may want to choose another speaker. The power button can sometimes get accidentally pressed when put in a bag. The aux input has quite a bit of latency and isn’t recommended for video use.
Setup: Try setting up the Earfun App (Android or iOS) to see if that works. If not, you’ll need to flash firmware 1.2.7 to work with the app and set with Oluv’s EQ in the Earfun app which sounds the best. The instructions say that you need a USB3 cable, but most USB2 cables work just fine, try the one included with your phone. Check the current firmware version by turning it on, then pressing the power and Bluetooth buttons at the same time. To flash, turn the speaker off then hold down the Bluetooth button while plugging in the cable. To flash on a mac, see these instructions. In TWS mode, long press the outdoor button for 2 seconds to change TWS to Party mode and back.
| App | Yes (firmware >= 1.2.6) |
|---|---|
| Aux Input | Yes |
| Aux Latency | 216ms |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Latency | 400ms normal / 66ms low latency mode |
| Bluetooth Version | 5.0 |
| Built in Microphone | Yes |
| Dimensions | 3.1" x 8.3" x 2.8" (78 x 210 x 72 mm) |
| Drivers | 2x 55mm drivers + 2x passive radiators |
| EQ | Yes (10 band, firmware >= 1.2.6) |
| IP Rating | IP67 |
| Max Volume | 103dB |
| Output Power | 28W |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.4 lbs / 650 g |
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- Head-to-Head Comparisons
- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.