Short answer: the B&O Beosound Explore, though neither ranks well in its class. It ranks #144 of 179 medium speakers by sound quality (rated 2.5/5) at $294.99 and is still sold new; the Ultimate Ears Roll 2 ranks #164 (rated 2.2/5) and is discontinued, so it is only an option used. The Ultimate Ears Roll 2’s replacement, the Ultimate Ears Miniroll, is still sold new. Both are rated below 3.0/5 among the 179 medium speakers, and the EarFun Uboom L, ranked #2 at $49.79, is a better place to start if sound quality matters.
The B&O Beosound Explore is the longer-running option. A rugged waterproof speaker with an anodized aluminum design, a strap and carabiner, and a long real world battery. It is rated for 27 hours of battery against 9 for the Ultimate Ears Roll 2. It plays in stereo from a single unit, unlike the Ultimate Ears Roll 2. It charges over USB-C rather than Micro USB. The catch: Huge lack of bass extension compared to competitors, overly hot ringing treble.
The Ultimate Ears Roll 2 is the lighter choice. A thin, flat waterproof speaker with a bungee cord for hanging from a hook or door handle, now discontinued. At 0.7 lbs (330 g) it weighs much less than the B&O Beosound Explore at 1.4 lbs (631 g). It keeps a wired aux input, which the B&O Beosound Explore lacks. The tradeoff: Barely any bass, rolled off treble off axis.
Buy the B&O Beosound Explore. It is rated higher for sound quality and still sold new, while the Ultimate Ears Roll 2 is discontinued.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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
| B&O Beosound Explore | Ultimate Ears Roll 2 | |
|---|---|---|
| Price | $294.99 | $100 Discontinued |
| Ranked | #144 of 179 in Medium Size Portable Bluetooth Speakers | #164 of 179 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | ~70Hz | - |
| Battery Life | 27 hours (Manufacturer specified) | 9 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX7 |
| Digital Aux Input | Yes (USB-C) | No |
| Weight | 1.4 lbs (631 g) | 0.7 lbs (330 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.2 | 4.0 |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Dimensions | 3.2” x 4.9” x 3.2” (81 x 124 x 81 mm) | 5.9” x 5.3” x 1.6” (149.5 x 135 x 40 mm) |
| Drivers | 2x 1.8” (46mm) full-range drivers | 1x 2” full-range + 2x 0.75” tweeters |
| TWS | Yes | No |
| Built-in Microphone | No | No |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| Power Input | USB-C | Micro USB |
| Power Bank | No | - |
| Amplifier Power | 60W | 10W |
| Maximum SPL | 91dB (Manufacturer specified) | - |
| App | Yes (Bang & Olufsen app) | Yes (UE Roll app) |
| Aux Input | No | Yes |
| EQ | Yes (App EQ) | Yes (5-band via UE ROLL app) |
| Strap | Yes (carabiner) | - |
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