Short answer: the Tribit Stormbox Micro 3. It ranks #6 of 62 small speakers by sound quality, rated 4.2/5, at $56.76. The Monster Bluetooth Speaker ranks #39, rated 3.0/5, at $19.99, $36.77 cheaper, a saving that is not big enough to make up the sound-quality gap.
The Tribit Stormbox Micro 3 is the better-sounding, deeper-bass pick. A tough strap on mini speaker with full waterproofing, a 24 hour battery and a power bank output. Its bass reaches about 62Hz before falling 10dB, against 95Hz for the Monster Bluetooth Speaker. It is rated for 24 hours of battery against 6.5 for the Monster Bluetooth Speaker. It supports AAC Bluetooth, which the Monster Bluetooth Speaker lacks. The catch: Bass is thuddy and distorted by default and needs EQ.
The Monster Bluetooth Speaker is the lighter pick. A very cheap, light waterproof travel speaker with USB-C charging, aux and microSD playback, and stereo pairing. At 0.4 lbs (185 g) it weighs much less than the Tribit Stormbox Micro 3 at 0.7 lbs (330 g). It keeps a wired aux input, which the Tribit Stormbox Micro 3 lacks. The tradeoff: Its tiny 36mm driver has very limited bass (about 95Hz at -10dB), elevated mids and rolled-off highs.
Buy the Tribit Stormbox Micro 3. It is rated higher for sound quality, and the $36.77 saving on the Monster Bluetooth Speaker is not enough to make up the difference.
Want more options? Browse the full Portable Bluetooth rankings.
A tough strap on mini speaker with full waterproofing, a 24 hour battery and a power bank output.
A very cheap, light waterproof travel speaker with USB-C charging, aux and microSD playback, and stereo pairing.
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Specifications Side By Side
| Tribit Stormbox Micro 3 | Monster Bluetooth Speaker | |
|---|---|---|
| Price | $56.76 | $19.99 |
| Ranked | #6 of 62 in Small Size Portable Bluetooth Speakers | #39 of 62 in Small Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 62Hz | 95Hz |
| Battery Life | 24 hours (Manufacturer specified) | 6.5 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | AAC, SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (9 Band) | No |
| IP Rating | IP68 | IPX7 |
| Maximum SPL | 93dB (measured by Alan Ross Reviews) | - |
| Party Mode | No | No |
| Power Bank | Yes (USB-C) | No |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | Pointing up |
| TWS | Yes | Yes |
| Weight | 0.7 lbs (330 g) | 0.4 lbs (185 g) |
| Bluetooth Version | 6.0 | 5.4 |
| Amplifier Power | 13W | 5W |
| Dimensions | 4.4” x 4.2” x 1.8” (112 x 107.9 x 45 mm) | Specifications vary by model |
| Drivers | 48mm NdFeB driver with coaxial passive radiators | 1.4” (36mm) full-range driver |
| Digital Aux Input | No | No |
| Strap | Yes (built-in strap) | Yes (carabiner hook, suction cup) |
| MicroSD Playback | - | Yes |
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