Short answer: the Soundcore Boom 3i. It ranks #31 of 179 medium speakers by sound quality, rated 4.0/5, at $118.99. The Tronsmart Mirtune S100 ranks #97, rated 3.1/5, at $79.99, $39 cheaper, which does not close the gap in sound quality.
The Soundcore Boom 3i is the better-sounding, deeper-bass choice. A warm, punchy waterproof speaker that sounds great and is a strong value. Its bass reaches about 56Hz before falling 10dB, against 64Hz for the Tronsmart Mirtune S100. At 1.7 lbs (783 g) it weighs much less than the Tronsmart Mirtune S100 at 3 lbs (1.36 kg). It supports AAC Bluetooth, which the Tronsmart Mirtune S100 lacks. The tradeoff: Not quite as good as a JBL Charge 5, doesn’t go quite as loud or sound quite as balanced, but very very close.
Why pick the Tronsmart Mirtune S100: A waterproof speaker with long battery life for outdoor and casual listening. It keeps a wired aux input, which the Soundcore Boom 3i lacks.
Buy the Soundcore Boom 3i. It is rated higher for sound quality, and the $39 saving on the Tronsmart Mirtune S100 is not enough to make up the difference.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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Specifications Side By Side
| Soundcore Boom 3i | Tronsmart Mirtune S100 | |
|---|---|---|
| Price | $118.99 | $79.99 |
| Ranked | #31 of 179 in Medium Size Portable Bluetooth Speakers | #97 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 56Hz | ~64Hz |
| Battery Life | 16 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| EQ | Yes | Yes |
| IP Rating | IP68 | IPX7 |
| Party Mode | No | - |
| Power Input | USB-C | USB-C |
| Stereo | No | Partially |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.3 |
| Dimensions | 8.3” x 3.3” x 3.1” (210 x 85 x 78.5 mm) | 9.1” x 3.5” x 3.9” (231 x 88 x 100 mm) |
| Drivers | 94mm woofer + tweeter | 20W drivers |
| Weight | 1.7 lbs (783 g) | 3 lbs (1.36 kg) |
| Amplifier Power | 50W | 50W |
| Bluetooth Codecs | SBC, AAC | SBC |
| Built-in Microphone | Yes | Yes |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | Yes (detachable strap) | - |
| Wi-Fi | - | No |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
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