Short answer: the Minirig Mini 2. It ranks #3 of 62 small speakers by sound quality, rated 4.4/5, at $100. The Ultimate Ears Miniroll ranks #12, rated 3.9/5, at $49.99, $50.01 cheaper, a saving that is not big enough to make up the sound-quality gap.
The Minirig Mini 2 is the better-sounding option. A tiny, very neutral speaker with much deeper bass than most its size, a long battery, and an optional add on subwoofer. It supports aptX Bluetooth, which the Ultimate Ears Miniroll lacks. It keeps a wired aux input, which the Ultimate Ears Miniroll lacks. It has an adjustable EQ, which the Ultimate Ears Miniroll lacks. Watch for: Calls itself splash resistant and has no official water rating.
The Ultimate Ears Miniroll is the tougher choice. A waterproof strap on mini speaker with clear mids and highs, a warm balance, and a long battery for its size. It is rated IP67 against Splash resistant for the Minirig Mini 2. It links with other speakers (PartyUp/Auracast, Miniroll-only), which the Minirig Mini 2 cannot. Watch for: Bass does not reach as deep as the best-rated speakers.
Buy the Minirig Mini 2. It is rated higher for sound quality, and the $50.01 you would save on the Ultimate Ears Miniroll does not close the gap.
Want more options? Browse the full Portable Bluetooth rankings.
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Specifications Side By Side
| Minirig Mini 2 | Ultimate Ears Miniroll | |
|---|---|---|
| Price | $100 | $49.99 |
| Ranked | #3 of 62 in Small Size Portable Bluetooth Speakers | #12 of 62 in Small Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | No |
| Aux Latency | 0ms | - |
| Bass Extension (-10dB) | 58Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | aptX, AAC, SBC | SBC |
| EQ | Yes | No |
| IP Rating | Splash resistant | IP67 |
| Maximum SPL | 92dB (measured by Alan Ross Reviews) | 83dB (Manufacturer specified) |
| Party Mode | No | Yes (PartyUp/Auracast, Miniroll-only) |
| Power Bank | No | No |
| Power Input | Proprietary USB cable | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | Pointing up |
| TWS | Yes (Bluetooth or cable) | Yes |
| Weight | 0.7 lbs (320 g) | 0.6 lbs (279 g) |
| Built-in Microphone | Yes | Yes |
| Dimensions | 3.3” x 2.1” (84 x 53 mm) | 4.8” x 4.1” x 1.9” (122.7 x 105 x 48.1 mm) |
| Frequency Response | 65Hz - 16kHz (Manufacturer specified) | - |
| Drivers | 52mm custom neodymium | 45.6mm active with passive radiator |
| Charging Time | 2.5-3.5 hours | 2.3 hours |
| Amplifier Power | 15W | 3W RMS |
| Digital Aux Input | No | No |
| Bluetooth Version | 4.2 | 5.3 |
| Strap | - | Yes (built-in strap) |
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