Short answer: the B&O Beosound A1 3rd gen for better sound quality, the Ultimate Ears Wonderboom 2 for the lower price. The B&O Beosound A1 3rd gen ranks #19 of 177 medium speakers, rated 4.1/5, at $399. The Ultimate Ears Wonderboom 2 ranks #110, rated 2.9/5, at $80, $319 cheaper.
The B&O Beosound A1 3rd gen is the better-sounding, longer-running pick. A premium waterproof puck speaker with good sound, a long battery, and a battery you can swap, built to last. It is rated for 24 hours of battery against 12 for the Ultimate Ears Wonderboom 2. It supports aptX Adaptive Bluetooth, which the Ultimate Ears Wonderboom 2 lacks. It has an adjustable EQ, which the Ultimate Ears Wonderboom 2 lacks. The catch: Distorts easier than the 2nd gen with deeper bass.
The Ultimate Ears Wonderboom 2 is the lighter pick. 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 noticeably less than the B&O Beosound A1 3rd gen at 1.2 lbs (558 g). Watch for: Not stereo, barely any bass, recessed treble.
Buy the B&O Beosound A1 3rd gen if sound quality is the priority over the price, or the Ultimate Ears Wonderboom 2 if the price is the priority over sound quality.
Want more options? Browse the full Portable Bluetooth rankings.
A premium waterproof puck speaker with good sound, a long battery, and a battery you can swap, built to last.
A small waterproof speaker that floats and is light enough to toss in a bag for the pool or beach.
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Specifications Side By Side
| B&O Beosound A1 3rd gen | Ultimate Ears Wonderboom 2 | |
|---|---|---|
| Price | $399.00 | $80 |
| Ranked | #19 of 177 in Medium Size Portable Bluetooth Speakers | #110 of 177 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | No |
| Battery Life | 24 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| EQ | Yes | No |
| Power Bank | No | - |
| Stereo | No | No |
| Omnidirectional | Pointing up | Yes |
| TWS | Yes | Yes |
| Digital Aux Input | Yes (USB-C) | No |
| Weight | 1.2 lbs (558 g) | 0.9 lbs (420 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive | SBC |
| Bluetooth Version | 5.1 | 5.1 |
| Dimensions | 5.2” x 1.8” x 5.2” (133 x 46 x 133 mm) | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 82.5mm woofer, 15mm tweeter | 2x 40mm active drivers + 2x passive radiators |
| IP Rating | IP67 | IP67 |
| Amplifier Power | 60W | - |
| Power Input | USB-C | Micro USB |
| Strap | Yes (built-in strap) | Yes (built-in loop) |
| Bass Extension (-10dB) | - | 82Hz |
| Maximum SPL | - | 88dB (measured by Alan Ross Reviews) |
| Party Mode | - | No |
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