Short answer: the Xiaomi Sound Outdoor. It ranks #46 of 179 medium speakers by sound quality (rated 3.7/5) at $49.99 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.
The Xiaomi Sound Outdoor is the better-sounding option. An affordable waterproof outdoor speaker with a separate tweeter, decent battery life and linking to many more speakers. It charges over USB-C rather than Micro USB. Watch for: Bass reach is limited for the cabinet size, with a rated lower limit of 60Hz, and the boosted bass gets somewhat uncontrolled at high levels.
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 Xiaomi Sound Outdoor at 1.3 lbs (597 g). It keeps a wired aux input, which the Xiaomi Sound Outdoor lacks. It has an adjustable EQ, which the Xiaomi Sound Outdoor lacks. The catch: Barely any bass, rolled off treble off axis.
Buy the Xiaomi Sound Outdoor. It is rated higher for sound quality, and the Ultimate Ears Roll 2 is discontinued, so it is only available used.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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
| Xiaomi Sound Outdoor | Ultimate Ears Roll 2 | |
|---|---|---|
| Price | $49.99 | $100 Discontinued |
| Ranked | #46 of 179 in Medium Size Portable Bluetooth Speakers | #164 of 179 in Medium Size Portable Bluetooth Speakers |
| App | No | Yes (UE Roll app) |
| Battery Life | 12 hours (Manufacturer specified) | 9 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| EQ | No | Yes (5-band via UE ROLL app) |
| IP Rating | IP67 | IPX7 |
| Party Mode | Yes (Speakersync, up to 100 speakers) | - |
| Power Input | USB-C | Micro USB |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Weight | 1.3 lbs (597 g) | 0.7 lbs (330 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.4 | 4.0 |
| Dimensions | 7.7” x 2.7” x 2.6” (196.6 x 68 x 66 mm) | 5.9” x 5.3” x 1.6” (149.5 x 135 x 40 mm) |
| Drivers | 20W woofer, 10W tweeter + 2x passive radiators | 1x 2” full-range + 2x 0.75” tweeters |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 30W | 10W |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC (inferred; additional codecs unverified) |
| Aux Input | No | Yes |
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