Short answer: the EarFun Uboom L. It ranks #2 of 177 medium speakers by sound quality, rated 4.6/5, at $49.79; the Ultimate Ears Megaboom 3 ranks #107, rated 3.0/5, and costs $191.99, which makes this an easy call rather than a real tradeoff.
The EarFun Uboom L is the better-sounding, deeper-bass option. A great value medium speaker with clear, natural sound, waterproofing, and a Video Mode that keeps audio in sync with video. Its bass reaches about 56Hz before falling 10dB, against 70Hz for the Ultimate Ears Megaboom 3. Alan Ross Reviews measured it at 103dB at full volume, against 98dB for the Ultimate Ears Megaboom 3. At 1.4 lbs (650 g) it weighs noticeably less than the Ultimate Ears Megaboom 3 at 2 lbs (925 g). The tradeoff: It cannot produce real low-bass rumble or fill a large, noisy space, and the top end loses some detail.
What the Ultimate Ears Megaboom 3 does well: A tough waterproof speaker that floats and shrugs off drops, with a long 20 hour battery for beach and pool days. It links with other speakers (PartyUp up to 50 speakers), which the EarFun Uboom L cannot. Watch for: Not stereo, barely any bass.
Buy the EarFun Uboom L. It is rated higher for sound quality than the Ultimate Ears Megaboom 3 and costs less, so only choose the other one for a particular feature it does better.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
A great value medium speaker with clear, natural sound, waterproofing, and a Video Mode that keeps audio in sync with video.
A tough waterproof speaker that floats and shrugs off drops, with a long 20 hour battery for beach and pool days.
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
| EarFun Uboom L | Ultimate Ears Megaboom 3 | |
|---|---|---|
| Price | $49.79 after coupon UBOOMLWC | $191.99 |
| Ranked | #2 of 177 in Medium Size Portable Bluetooth Speakers | #107 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes (firmware >= 1.2.6) | Yes (UE | BOOM app) |
| Aux Input | Yes | No |
| Aux Latency | 216ms | - |
| Bass Extension (-10dB) | 56Hz | 70Hz |
| Battery Life | 16 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | SBC |
| Built-in Microphone | Yes | - |
| EQ | Yes (10 band, firmware >= 1.2.6) | Yes (App EQ) |
| IP Rating | IP67 | IPX7 |
| Bluetooth Latency | 400ms normal / 66ms low latency mode | - |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) | 98dB (measured by Alan Ross Reviews) |
| Party Mode | No | Yes (PartyUp up to 50 speakers) |
| Power Bank | No | - |
| Power Input | USB-C | Micro USB |
| Stereo | Yes | No |
| Omnidirectional | No | Yes |
| TWS | Yes | Yes |
| Weight | 1.4 lbs (650 g) | 2 lbs (925 g) |
| Bluetooth Version | 5.0 | 4.2 |
| Dimensions | 3.1” x 8.3” x 2.8” (78 x 210 x 72 mm) | 3.4” x 8.9” x 3.4” (87 x 225 x 87 mm) |
| Drivers | 2x 55mm drivers + 2x passive radiators | 2x 50mm fullrange |
| Amplifier Power | 28W | - |
| Digital Aux Input | No | No |
| Frequency Response | - | 60Hz - 20kHz (Manufacturer specified) |
| Strap | - | Yes (built-in loop) |
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