Short answer: the Soundcore Boom 3i for better sound quality, the Tronsmart Mirtune C3 for the lower price. The Soundcore Boom 3i ranks #29 of 150 medium speakers, rated 4.0/5, at $118.99. The Tronsmart Mirtune C3 ranks #89, rated 3.1/5, at $29.99, $89 cheaper.
The case for the Soundcore Boom 3i: Looks to be designed as a direct competitor to the Charge 5 with a very similar sound profile, warm tuned with boosted bass. Watch for: Not quite as good as a Charge 5, doesn’t go quite as loud or sound quite as balanced, but very very close.
Why pick the Tronsmart Mirtune C3: Small and light at 530 g, with a racetrack driver and a tweeter rated for 30W, IPX7 waterproofing, Bluetooth 6.0, Auracast multi-speaker sync, stereo pairing, USB-C audio input, app EQ and a lanyard. Watch for: In GiT’s three way blind test it came behind the Creative Muvo Go and Xiaomi Sound Outdoor, sounding good only on sparse tracks, and listeners in AudioPro Reviews’ comparison found the JBL Flip 6 fuller with more bass.
Buy the Soundcore Boom 3i if sound quality is the priority over the price, or the Tronsmart Mirtune C3 if the price is the priority over sound quality.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Soundcore Boom 3i | Tronsmart Mirtune C3 | |
|---|---|---|
| Price | $118.99 | $29.99 |
| Ranked | #29 of 150 in Medium Size Portable Bluetooth Speakers | #89 of 150 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (Tronsmart) |
| Aux Input | No | - |
| Bass Extension (-10dB) | 56Hz | - |
| Battery Life | 16 hours (Manufacturer specified) | 12 hours at 50% volume (Manufacturer specified) |
| EQ | Yes | Yes (app) |
| IP Rating | IP68 | IPX7 |
| Party Mode | No | Yes (Auracast) |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 6.0 |
| Dimensions | 8.3” x 3.3” x 3.1” (210 x 85 x 78.5 mm) | 7.1”H x 2.8”W x 2.8”D (180 x 70 x 72 mm) |
| Drivers | 94mm woofer + tweeter | 1x racetrack woofer + 1x tweeter |
| Weight | 1.7 lbs (783 g) | 1.2 lbs (0.53 kg) |
| Amplifier Power | 50W | 30W |
| Bluetooth Codecs | SBC, AAC | SBC |
| Built-in Microphone | Yes | - |
| Digital Aux Input | No | Yes (USB-C) |
| Lights | Yes | - |
| Strap | Yes (detachable strap) | Yes (lanyard) |
| Battery Capacity | - | 14.8Wh (7.4V, 2000mAh) |
| Charging Time | - | 2 hours |
| Frequency Response | - | 55Hz - 20kHz (Manufacturer specified) |
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Prices on this page were last checked September 30, 2026 at 2:57 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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The Two Speakers In Full
Soundcore Boom 3i: $118.99 Amazon B&H Photo Video eBay
Pros: Looks to be designed as a direct competitor to the Charge 5 with a very similar sound profile, warm tuned with boosted bass. Better value for the money than the Charge 5. Measured bass extension of 56Hz (-10dB).
Cons: Not quite as good as a Charge 5, doesn’t go quite as loud or sound quite as balanced, but very very close. An earlier firmware version had some bass distortion, update your firmware in the Soundcore App
Full Soundcore Boom 3i review and specifications →
| Amplifier Power | 50W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 8.3” x 3.3” x 3.1” (210 x 85 x 78.5 mm) |
| Drivers | 94mm woofer + tweeter |
| EQ | Yes |
| IP Rating | IP68 |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (detachable strap) |
| TWS | Yes |
| Weight | 1.7 lbs (783 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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Tronsmart Mirtune C3: $29.99 Tronsmart eBay
Pros: Small and light at 530 g, with a racetrack driver and a tweeter rated for 30W, IPX7 waterproofing, Bluetooth 6.0, Auracast multi-speaker sync, stereo pairing, USB-C audio input, app EQ and a lanyard.
Cons: In GiT’s three way blind test it came behind the Creative Muvo Go and Xiaomi Sound Outdoor, sounding good only on sparse tracks, and listeners in AudioPro Reviews’ comparison found the JBL Flip 6 fuller with more bass. Tronsmart rates the battery at 12 hours at half volume. It is a mono unit with no aux input.
Full Tronsmart Mirtune C3 review and specifications →
| Amplifier Power | 30W |
|---|---|
| App | Yes (Tronsmart) |
| Battery Capacity | 14.8Wh (7.4V, 2000mAh) |
| Battery Life | 12 hours at 50% volume (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 6.0 |
| Charging Time | 2 hours |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 7.1”H x 2.8”W x 2.8”D (180 x 70 x 72 mm) |
| Drivers | 1x racetrack woofer + 1x tweeter |
| EQ | Yes (app) |
| Frequency Response | 55Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (lanyard) |
| TWS | Yes |
| Weight | 1.2 lbs (0.53 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Tronsmart Mirtune C3 vs Tribit Xsound Go
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