Short answer: the W-King D320. It ranks #49 of 182 medium speakers by sound quality, rated 3.6/5, at $52.92; the Tronsmart Mirtune C3 Plus ranks #84, rated 3.3/5, at $49.99. Close enough in price that the sound-quality gap is the deciding factor.
The W-King D320 is the better-sounding, longer-running pick. An affordable waterproof travel speaker with loud, punchy bass, long battery life, an aux input, microSD playback and app EQ. It is rated for 24 hours of battery against 12 for the Tronsmart Mirtune C3 Plus. It keeps a wired aux input, which the Tronsmart Mirtune C3 Plus lacks. The tradeoff: A single D320 is not stereo, and its warm balance trades away some detail and upper-treble air.
The Tronsmart Mirtune C3 Plus is the lighter choice. An affordable waterproof speaker with a separate tweeter, app EQ, Auracast linking, stereo pairing and USB-C audio input. At 1.8 lbs (810 g) it weighs much less than the W-King D320 at 3.1 lbs (1.4 kg). Watch for: 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 W-King D320. It is rated higher for sound quality, and saving $2.93 with the Tronsmart Mirtune C3 Plus does not make up for the sound-quality gap.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 14, 2026 at 6:17 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| W-King D320 | Tronsmart Mirtune C3 Plus | |
|---|---|---|
| Price | $52.92 | $49.99 |
| Ranked | #49 of 182 in Medium Size Portable Bluetooth Speakers | #84 of 182 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (Tronsmart) |
| Aux Input | Yes | No |
| Battery Life | 24 hours (Manufacturer specified) | 12 hours at 50% volume (Manufacturer specified) |
| Built-in Microphone | Yes | - |
| EQ | Yes | Yes (app) |
| IP Rating | IP67 | IPX7 |
| MicroSD Playback | Yes | - |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | No | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 6.0 |
| Dimensions | 3.3” x 8.4” (83 x 214 mm) (diameter x height) | 8.3”H x 3.1”W x 3.3”D (210 x 80 x 85 mm) |
| Drivers | 52mm x 91mm woofer, 2x 25mm tweeters + 2x passive radiators | 1x racetrack woofer + 1x tweeter |
| Frequency Response | 100Hz - 18kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Power Input | USB-C | USB-C |
| Amplifier Power | 40W | 50W |
| Weight | 3.1 lbs (1.4 kg) | 1.8 lbs (0.81 kg) |
| Digital Aux Input | No | Yes (USB-C) |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC |
| Charging Time | - | 4 hours |
| Party Mode | - | Yes (Auracast) |
| Strap | - | Yes (lanyard) |
Where the Ratings Come From
- W-King D320: reviews by Techder Audios, Jay’s Straight Up Reviews & More and Audio y Mas 🔊.
- Tronsmart Mirtune C3 Plus: reviews by Oluv, Mateusz Cholewa and Techder Audios.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
Related Speaker Comparisons
How W-King D320 compares with other leading options: