Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The EarFun Uboom L ranks #2 of 179 medium speakers by sound quality at $49.79; the Soundcore Boom Go 3i ranks #2 of 62 small speakers by sound quality at $59.98.
Why pick the EarFun Uboom L: A great value medium speaker with clear, natural sound, waterproofing, and a Video Mode that keeps audio in sync with video. It supports AAC Bluetooth, which the Soundcore Boom Go 3i lacks. It keeps a wired aux input, which the Soundcore Boom Go 3i lacks. It plays in stereo from a single unit, unlike the Soundcore Boom Go 3i. The tradeoff: It cannot produce real low-bass rumble or fill a large, noisy space, and the top end loses some detail.
The Soundcore Boom Go 3i is the longer-running, lighter choice. A tough, floating mini speaker with full waterproofing, a long battery and a detachable strap, built for travel and the outdoors. It is rated for 24 hours of battery against 16 for the EarFun Uboom L. At 0.8 lbs (380 g) it weighs much less than the EarFun Uboom L at 1.4 lbs (650 g). It links with other speakers (Auracast), which the EarFun Uboom L cannot. The tradeoff: This is still a 15W mono speaker: bass impact and stereo width are limited, and critical listeners may find the upper treble piercing or metallic.
Buy the EarFun Uboom L at $49.79 for a medium speaker, or the Soundcore Boom Go 3i at $59.98 for a small speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| EarFun Uboom L | Soundcore Boom Go 3i | |
|---|---|---|
| Price | $49.79 after coupon UBOOMLWC | $59.98 |
| Ranked | #2 of 179 in Medium Size Portable Bluetooth Speakers | #2 of 62 in Small Size Portable Bluetooth Speakers |
| App | Yes (firmware >= 1.2.6) | Yes |
| Aux Input | Yes | No |
| Aux Latency | 216ms | - |
| Bass Extension (-10dB) | 56Hz | - |
| Battery Life | 16 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (10 band, firmware >= 1.2.6) | Yes |
| IP Rating | IP67 | IP68 |
| Bluetooth Latency | 400ms normal / 66ms low latency mode | - |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) | 92dB (Manufacturer specified) |
| Party Mode | No | Yes (Auracast) |
| Power Bank | No | Yes (USB-C) |
| Power Input | USB-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes |
| Weight | 1.4 lbs (650 g) | 0.8 lbs (380 g) |
| Bluetooth Version | 5.0 | 6.0 |
| Dimensions | 3.1” x 8.3” x 2.8” (78 x 210 x 72 mm) | 4” x 4.2” x 1.8” (102.1 x 105.9 x 45.5 mm) |
| Drivers | 2x 55mm drivers + 2x passive radiators | 25mm tweeter + 42mm woofer + passive radiators |
| Amplifier Power | 28W | 15W |
| Digital Aux Input | No | No |
| Lights | - | Yes |
| Strap | - | Yes (detachable strap) |
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