Short answer: the Soundcore 3. It ranks #62 of 157 medium speakers by sound quality, rated 3.4/5, at $59.99. The Tronsmart Mirtune C3 Plus ranks #79, rated 3.3/5, at $49.99, $10 cheaper, not enough of a saving to outweigh the sound-quality gap.
The Soundcore 3 is the longer-running, lighter choice. Identical in acoustic design and performance to the retailer variant Soundcore Select 2. It is rated for 24 hours of battery against 12 for the Tronsmart Mirtune C3 Plus. At 0.8 lbs (372 g) it weighs much less than the Tronsmart Mirtune C3 Plus at 1.8 lbs (810 g). It plays in stereo from a single unit, unlike the Tronsmart Mirtune C3 Plus.
What the Tronsmart Mirtune C3 Plus does well: A racetrack woofer and a tweeter rated for 50W, with IPX7 waterproofing, Bluetooth 6.0, Auracast multi-speaker sync, stereo pairing, USB-C audio input, app EQ and a detachable lanyard, at 1.8 lbs (0.81 kg). The catch: In side by side tests by Clinch Audio Bass and Mateusz Cholewa, the Xiaomi Sound Party and Soundcore Boom 3i sounded more refined and fuller, and listeners described the C3 Plus’s treble as dull.
Buy the Soundcore 3. It is rated higher for sound quality, and the $10 saving on the Tronsmart Mirtune C3 Plus is not enough to make up the difference.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Soundcore 3 | Tronsmart Mirtune C3 Plus | |
|---|---|---|
| Price | $59.99 | $49.99 |
| Ranked | #62 of 157 in Medium Size Portable Bluetooth Speakers | #79 of 157 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (Tronsmart) |
| Bass Extension (-10dB) | 60Hz | - |
| Battery Life | 24 hours (Manufacturer specified) | 12 hours at 50% volume (Manufacturer specified) |
| EQ | Yes | Yes (app) |
| Bluetooth Latency | 180ms | - |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (PartyCast up to 100 speakers) | Yes (Auracast) |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| Weight | 0.8 lbs (372 g) | 1.8 lbs (0.81 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 6.0 |
| Dimensions | 6.9” x 2.2” x 2.3” (174 x 57 x 59 mm) | 8.3”H x 3.1”W x 3.3”D (210 x 80 x 85 mm) |
| Amplifier Power | 16W | 50W |
| Drivers | 2x 38mm (1.5”) titanium diaphragm full-range drivers + 2x passive radiators | 1x racetrack woofer + 1x tweeter |
| IP Rating | IPX7 | IPX7 |
| Digital Aux Input | No | Yes (USB-C) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Power Input | USB-C | USB-C |
| Aux Input | No | - |
| TWS | Yes | Yes |
| Strap | No | Yes (lanyard) |
| Charging Time | - | 4 hours |
| Frequency Response | - | 50Hz - 20kHz (Manufacturer specified) |
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Prices on this page were last checked October 2, 2026 at 10:18 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 3: $59.99 Amazon eBay
Older model: the Soundcore 2 (ranked lower, rated 3/5).
Pros: Soundcore 3 uses 2x 38mm (1.5”) titanium diaphragm full-range drivers + 2x passive radiators. Its 372 g, claimed 24 hours (Manufacturer specified) battery life, IPX7 protection, up to 99dB and stereo playback make it a practical option for its intended room or portable use. Identical in acoustic design and performance to the retailer variant Soundcore Select 2. Measured bass extension of 60Hz (-10dB).
Cons: Bass is limited by its 60Hz specification.
Full Soundcore 3 review and specifications →
| Amplifier Power | 16W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 60Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Latency | 180ms |
| Bluetooth Version | 5.0 |
| Digital Aux Input | No |
| Dimensions | 6.9” x 2.2” x 2.3” (174 x 57 x 59 mm) |
| Drivers | 2x 38mm (1.5”) titanium diaphragm full-range drivers + 2x passive radiators |
| EQ | Yes |
| IP Rating | IPX7 |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (PartyCast up to 100 speakers) |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 0.8 lbs (372 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Tronsmart Mirtune C3 Plus: $49.99 Tronsmart Best Buy eBay
Pros: A racetrack woofer and a tweeter rated for 50W, with IPX7 waterproofing, Bluetooth 6.0, Auracast multi-speaker sync, stereo pairing, USB-C audio input, app EQ and a detachable lanyard, at 0.81 kg.
Cons: In side by side tests by Clinch Audio Bass and Mateusz Cholewa, the Xiaomi Sound Party and Soundcore Boom 3i sounded more refined and fuller, and listeners described the C3 Plus’s treble as dull. Tronsmart rates the battery at only 12 hours at half volume. It is a mono unit with no aux input.
Full Tronsmart Mirtune C3 Plus review and specifications →
| Amplifier Power | 50W |
|---|---|
| App | Yes (Tronsmart) |
| Battery Life | 12 hours at 50% volume (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 6.0 |
| Charging Time | 4 hours |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 8.3”H x 3.1”W x 3.3”D (210 x 80 x 85 mm) |
| Drivers | 1x racetrack woofer + 1x tweeter |
| EQ | Yes (app) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (lanyard) |
| TWS | Yes |
| Weight | 1.8 lbs (0.81 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Clinch Audio Bass: Mirtune C3 Plus 50w VS Xioami Sound Party 50w
- Clinch Audio Bass: Mirtune C3 Plus 50w VS SoundCore Boom 3i 50w
- Techder Audios: Xiaomi Sound Party vs Tronsmart Mirtune C3 Plus - Real Sound & Bass Test! More from techderaudios →
- Mateusz Cholewa: Soundcore Boom 3i vs Tronsmart Mirtune C3 Plus More from Mateusz Cholewa →
- Importados Neto Rocha: Vale a pena pagar o dobro? Tronsmart C3 Plus vs JBL Flip 7
- GiT: Tronsmart Mirtune C3 vs C3+ blind test
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