Short answer: a tie on sound quality. Both are rated 3.6/5 (#697 and #769 of 1291 in-ear headphones) at nearly the same price ($68 vs $72.99), so choose on features and fit.
What the Sony WF-C510 does well: In hobbyist measurements on squig.link it tracks the Harman target closely through the bass and mids, with a preference score of 69 and no peak above target between 1.5 and 12 kHz, so it never sounds harsh. Watch for: There is no active noise cancelling, and codec support stops at SBC and AAC.
What the TRN VX does well: A budget hybrid with one dynamic driver and six balanced armatures. The catch: Bass sits about 2.2 dB below target, so it sounds lean.
Buy the Sony WF-C510 or the TRN VX on features: they are rated the same for sound quality at close to the same price.
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In hobbyist measurements on squig.link it tracks the Harman target closely through the bass and mids, with a preference score of 69 and no peak above target between 1.5 and 12 kHz, so it never sounds harsh.
Amazon $68.00 Lowest Sony $69.99 eBay
A budget hybrid with one dynamic driver and six balanced armatures.
Shenzhenaudio $72.99 eBayPrices on this page were last checked October 16, 2026 at 5:46 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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Specifications Side By Side
| Sony WF-C510 | TRN VX | |
|---|---|---|
| Price | $68.00 | $72.99 |
| Ranked | #697 of 1291 in In-Ear Headphones | #769 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 69 (median of 1 squig.link measurements, calibrated to AutoEQ) | 68 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.47 dB standard deviation | 2.38 dB standard deviation |
| Tonal Tilt | -0.30 (negative is warmer, positive brighter) | +0.52 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.4 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.3 dB at 30 Hz) |
| Connection | True wireless | Wired |
| Driver Type | Dynamic | Hybrid |
| Drivers | 1 x 6mm dynamic | 1 x 10mm dynamic + 6 x balanced armature |
| Weight | 0 lbs (4.6 g) per earbud | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| Active Noise Cancelling | No | - |
| Battery Life | 11 hours (22 with case, Manufacturer specified) | - |
| Bluetooth Version | 5.3 | - |
| Bluetooth Codecs | SBC, AAC | - |
| Built-in Microphone | Yes | - |
| IP Rating | IPX4 | - |
| Impedance | - | 22 ohms |
| Sensitivity | - | 107 dB/mW |
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