Short answer: the Sony WF-C510. It ranks #697 of 1291 in-ear headphones by sound quality, rated 3.6/5, at $68; the JBL Live 300TWS ranks #788, rated 3.5/5, and costs $69.99, which makes this an easy call rather than a real tradeoff.
Why pick the Sony WF-C510: 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. The tradeoff: There is no active noise cancelling, and codec support stops at SBC and AAC.
The case for the JBL Live 300TWS: It uses 1 x 5.6mm dynamic with an easy 16 ohm load. The catch: Its 2.30 dB spread is less even than the best measured sets.
Buy the Sony WF-C510. It is rated higher for sound quality than the JBL Live 300TWS and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Headphones rankings.
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
It uses 1 x 5.6mm dynamic with an easy 16 ohm load.
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Specifications Side By Side
| Sony WF-C510 | JBL Live 300TWS | |
|---|---|---|
| Price | $68.00 | $69.99 |
| Ranked | #697 of 1291 in In-Ear Headphones | #788 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | - |
| Harman Preference Score | 69 (median of 1 squig.link measurements, calibrated to AutoEQ) | 68 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 2.47 dB standard deviation | 2.30 dB standard deviation |
| Tonal Tilt | -0.30 (negative is warmer, positive brighter) | -0.78 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.4 dB at 30 Hz) | - |
| Connection | True wireless | True wireless |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 6mm dynamic | 1 x 5.6mm dynamic |
| Weight | 0 lbs (4.6 g) per earbud | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 20Hz - 20kHz |
| 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 | - | 16 ohms |
| Sensitivity | - | 95 dB/mW |
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