Short answer: the Sony LinkBuds Fit for better sound quality, the Sony WF-C510 for the lower price. The Sony LinkBuds Fit ranks #184 of 467 in-ear headphones, rated 4.2/5, at $178. The Sony WF-C510 ranks #357, rated 3.6/5, at $48, $130 cheaper.
The Sony LinkBuds Fit is the better-sounding choice. One of the smoothest true wireless tunings around: in squig.link measurements the deviation is just 1.7 dB with a neutral overall tilt and a preference score near 77, and bass reaches 20 Hz within about 3 dB of target. It supports LDAC Bluetooth, which the Sony WF-C510 lacks. The catch: Battery life is short at 5.5 hours with ANC on and 8 with it off.
The Sony WF-C510 is the longer-running pick. 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. It is rated for 11 hours of battery against 5.5 for the Sony LinkBuds Fit. The catch: There is no active noise cancelling, and codec support stops at SBC and AAC.
Buy the Sony LinkBuds Fit when sound quality outweighs the price for you, and the Sony WF-C510 when the price outweighs sound quality instead.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| Sony LinkBuds Fit | Sony WF-C510 | |
|---|---|---|
| Price | $178.00 | $48.00 |
| Ranked | #184 of 467 in In-Ear Headphones | #357 of 467 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 77 (median of 1 squig.link measurements, calibrated to AutoEQ) | 69 (median of 1 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.72 dB standard deviation | 2.47 dB standard deviation |
| Tonal Tilt | +0.00 (negative is warmer, positive brighter) | -0.30 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.8 dB at 30 Hz) | 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 8.4mm dynamic | 1 x 6mm dynamic |
| Weight | 0 lbs (4.9 g) per earbud | 0 lbs (4.6 g) per earbud |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Active Noise Cancelling | Yes | No |
| Battery Life | 5.5 hours (8 with ANC off, Manufacturer specified) | 11 hours (22 with case, Manufacturer specified) |
| Bluetooth Version | 5.3 | 5.3 |
| Bluetooth Codecs | SBC, AAC, LDAC, LC3 | SBC, AAC |
| Built-in Microphone | Yes | Yes |
| IP Rating | IPX4 | IPX4 |
Related Headphone Comparisons
How Sony LinkBuds Fit compares with other leading options:
- Sony LinkBuds Fit vs Sony WF-1000XM5
- Anker Soundcore Liberty 4 NC vs Sony WF-C510
- Google Pixel Buds Pro 2 vs Samsung Galaxy Buds3 Pro
- Apple AirPods Pro 3 vs Google Pixel Buds Pro 2
- Google Pixel Buds Pro 2 vs Sony WF-1000XM6
Prices on this page were last checked October 11, 2026 at 4:59 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 Headphones In Full
Sony LinkBuds Fit: $178.00 TWS Amazon $178.00 eBay
Pros: One of the smoothest true wireless tunings around: in squig.link measurements the deviation is just 1.7 dB with a neutral overall tilt and a preference score near 77, and bass reaches 20 Hz within about 3 dB of target. It pairs that with active noise cancelling, LDAC and LC3 support, and an IPX4 rating, matching the rating of wired rivals such as the 7Hz Timeless.
Cons: Battery life is short at 5.5 hours with ANC on and 8 with it off. The 3 to 6 kHz presence region sits nearly 4 dB under target and a 6.6 dB dip near 11.9 kHz trims air, so vocals and cymbals sound a little reserved.
Full Sony LinkBuds Fit review and specifications →
| Released | Nov 2024 (1 year ago) |
|---|---|
| Active Noise Cancelling | Yes |
| Back | Closed |
| Battery Life | 5.5 hours (8 with ANC off, Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC, LC3 |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Connection | True wireless |
| Deviation From Target | 1.72 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 8.4mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 77 (median of 1 squig.link measurements, calibrated to AutoEQ) |
| IP Rating | IPX4 |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.8 dB at 30 Hz) |
| Tonal Tilt | +0.00 (negative is warmer, positive brighter) |
| Weight | 0 lbs (4.9 g) per earbud |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Sony WF-C510: $48.00 TWS Amazon $48.00 eBay
Pros: 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 slightly warm balance suits relaxed listening, and its 11 hours per charge (22 with the case), IPX4 rating and AAC support are strong for an inexpensive true wireless earbud.
Cons: There is no active noise cancelling, and codec support stops at SBC and AAC. Treble sits about 4 dB below target from 6 to 10 kHz and sub-bass about 3.4 dB low, so cymbals lack sparkle and deep bass lacks rumble. The CCA C10 rates higher for less money.
Full Sony WF-C510 review and specifications →
| Released | Sep 2024 (2 years ago) |
|---|---|
| Active Noise Cancelling | No |
| Back | Closed |
| Battery Life | 11 hours (22 with case, Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Connection | True wireless |
| Deviation From Target | 2.47 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 6mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 69 (median of 1 squig.link measurements, calibrated to AutoEQ) |
| IP Rating | IPX4 |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.4 dB at 30 Hz) |
| Tonal Tilt | -0.30 (negative is warmer, positive brighter) |
| Weight | 0 lbs (4.6 g) per earbud |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons