Short answer: the EarFun Uboom L. It ranks #2 of 177 medium speakers by sound quality, rated 4.6/5, at $49.79; the B&O Beosound A1 3rd gen ranks #19, rated 4.1/5, and costs $399, so there is little reason to consider the other one.
The Uboom L is the top-rated speaker in its size class. Two 55mm drivers and two passive radiators play in stereo with clear vocals and a natural balance, Alan Ross measured 103dB, and it has a 10-band EQ, an aux input and a low-latency Video Mode. It cannot produce deep rumble or fill a large, noisy space.
The Beosound A1 3rd gen is the premium, repairable option. It claims 24 hours of battery, is IP67 with a replaceable battery, and supports aptX Adaptive and multipoint in a flat aluminum body. It distorts more easily than the 2nd gen, has a dip in the upper mids, and its bass is not as deep.
Buy the EarFun Uboom L. It is rated higher for sound quality than the B&O Beosound A1 3rd gen and costs less, so only choose the other one for a particular feature it does better.
There is a real battery-life gap here: the B&O Beosound A1 3rd gen is rated for 24 hours, the EarFun Uboom L only 16 hours.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A great value medium speaker with clear, natural sound, waterproofing, and a Video Mode that keeps audio in sync with video.
A premium waterproof puck speaker with good sound, a long battery, and a battery you can swap, built to last.
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 | B&O Beosound A1 3rd gen | |
|---|---|---|
| Price | $49.79 after coupon UBOOMLWC | $399.00 |
| Ranked | #2 of 177 in Medium Size Portable Bluetooth Speakers | #19 of 177 in Medium 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, AAC, aptX Adaptive |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (10 band, firmware >= 1.2.6) | Yes |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 400ms normal / 66ms low latency mode | - |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | - |
| Power Bank | No | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes |
| Weight | 1.4 lbs (650 g) | 1.2 lbs (558 g) |
| Bluetooth Version | 5.0 | 5.1 |
| Dimensions | 3.1” x 8.3” x 2.8” (78 x 210 x 72 mm) | 5.2” x 1.8” x 5.2” (133 x 46 x 133 mm) |
| Drivers | 2x 55mm drivers + 2x passive radiators | 82.5mm woofer, 15mm tweeter |
| Amplifier Power | 28W | 60W |
| Digital Aux Input | No | Yes (USB-C) |
| Strap | - | Yes (built-in strap) |
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