Short answer: the SGOR Luna. It ranks #375 of 1291 in-ear headphones by sound quality, rated 4.1/5, at $38; the Sony WI-C100 ranks #516, rated 3.9/5, at $38. The price gap is small enough that the sound-quality ranking should decide it.
Why pick the SGOR Luna: The median of 8 hobbyist measurements gives it a solid Harman preference score of 74 with a 2.09 dB spread, and its mids sit within about 0.6 dB of target, so vocals and instruments sound natural. The tradeoff: A 9.2 dB peak near 8.2 kHz can make cymbals and sibilance sound sharp.
Why pick the Sony WI-C100: The median of 3 hobbyist measurements gives it a solid Harman preference score of 72 with a 1.94 dB spread. The catch: Presence sits about 3.4 dB low with an 8.1 dB dip near 10.3 kHz, so vocals and instruments lose some bite.
Buy the SGOR Luna. It is rated higher for sound quality than the Sony WI-C100 at the same price, so it is the default pick unless a specific strength of the other one matters more to you.
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The median of 8 hobbyist measurements gives it a solid Harman preference score of 74 with a 2.09 dB spread, and its mids sit within about 0.6 dB of target, so vocals and instruments sound natural.
Linsoul $38.00 eBay
The median of 3 hobbyist measurements gives it a solid Harman preference score of 72 with a 1.94 dB spread.
Amazon $38.00 Lowest Sony $39.99 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
| SGOR Luna | Sony WI-C100 | |
|---|---|---|
| Price | $38.00 | $38.00 |
| Ranked | #375 of 1291 in In-Ear Headphones | #516 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 74 (median of 8 squig.link measurements, calibrated to AutoEQ) | 72 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.09 dB standard deviation | 1.94 dB standard deviation |
| Tonal Tilt | -0.08 (negative is warmer, positive brighter) | -0.49 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.5 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.2 dB at 30 Hz) |
| Connection | Wired | Wireless |
| Driver Type | Planar magnetic | Dynamic |
| Drivers | 1 x 13.5mm planar magnetic | 1 x 9mm dynamic |
| Impedance | 27 ohms | - |
| Sensitivity | 88 dB/Vrms | - |
| Frequency Response | 7Hz - 40kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Weight | - | 0 lbs (20 g) |
| Active Noise Cancelling | - | No |
| Battery Life | - | 25 hours (Manufacturer specified) |
| Bluetooth Version | - | 5.0 |
| Bluetooth Codecs | - | SBC, AAC |
| Built-in Microphone | - | Yes |
| IP Rating | - | IPX4 |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the SGOR Luna from aftersound, ankramutt, audioamigo, csi-zone, obodio, pw, soundignity and vortexreviews; the Sony WI-C100 from aquaphobic, kazi and soundignity, all via squig.link.
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