Short answer: the Tribit Stormbox Micro 2 for sound, the Xiaomi Mi Portable Mini for features per gram. The Micro 2 is best in class sound, though its phone charging is finicky. The Mi Portable Mini is IP67 waterproof with TWS stereo pairing, 10-hour battery life, Bluetooth 5.0, a compact 0.4 lbs (185 g) design and a bass boost equalizer, but it has not much bass and rolled off treble.
Buy the Tribit Stormbox Micro 2. It is rated higher for sound quality, and the $13.40 you would save on the Xiaomi Mi Portable Mini does not close the gap.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
An excellent sounding small speaker, with surprisingly deep bass for its size and a strap that holds it on a bike or backpack.
A tiny, very cheap waterproof speaker with USB-C charging and stereo pairing with a second unit, easy to slip into any bag.
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
| Tribit Stormbox Micro 2 | Xiaomi Mi Portable Mini | |
|---|---|---|
| Price | $35.39 | $21.99 |
| Ranked | #1 of 62 in Small Size Portable Bluetooth Speakers | #51 of 62 in Small Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | No |
| Bass Extension (-10dB) | 65Hz | - |
| Battery Life | 12 hours (Manufacturer specified) | 10 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (9 Band) | No |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 265ms | - |
| Maximum SPL | 94dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | No |
| Power Bank | Yes (but it doesn’t usually work; USB-C, 10W) | No |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | Pointing up |
| TWS | Yes | Yes |
| Weight | 0.7 lbs (317 g) | 0.4 lbs (185 g) |
| Bluetooth Version | 5.3 | 5.0 |
| Amplifier Power | 10W | 4W |
| Dimensions | 3.9” x 3.9” x 1.7” (99.1 x 99.1 x 42.7 mm) | 3.4” x 3.4” x 1.8” (86 x 86 x 45 mm) |
| Drivers | 48mm NdFeB driver | 2x drivers (rare-earth magnet, long-fibre diaphragm) + passive radiator |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | - |
| Battery Capacity | - | 2000mAh |
| Frequency Response | - | 200Hz - 15kHz (Manufacturer specified) |
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