Short answer: the Cozoy D1. It ranks #25 of 1291 in-ear headphones by sound quality, rated 4.9/5, at $35.89; the Simgot EW100P ranks #37, rated 4.8/5, at $32.62. Close enough in price that the sound-quality gap is the deciding factor.
Why pick the Cozoy D1: The median of 26 hobbyist measurements gives it an excellent Harman preference score of 84 with a 1.14 dB spread, and its mids sit within about 1.1 dB of target, so vocals and instruments sound natural. Watch for: A 4.3 dB peak near 11.2 kHz can make cymbals and sibilance sound sharp.
What the Simgot EW100P does well: In oratory1990’s measurement it earns a preference score of 83 with a deviation of only 1.49 dB, so its single 10mm dynamic driver tracks the Harman target unusually closely. The catch: A 5.8 dB dip near 9.7 kHz and treble running about 2.4 dB under target between 6 and 10 kHz soften cymbals and string texture, while the 10 to 16 kHz air region is 3.6 dB hot.
Buy the Cozoy D1. It is rated higher for sound quality, and the $3.27 you would save on the Simgot EW100P does not close the gap.
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The median of 26 hobbyist measurements gives it an excellent Harman preference score of 84 with a 1.14 dB spread, and its mids sit within about 1.1 dB of target, so vocals and instruments sound natural.
AliExpress $35.89 eBay
In oratory1990’s measurement it earns a preference score of 83 with a deviation of only 1.49 dB, so its single 10mm dynamic driver tracks the Harman target unusually closely.
AliExpress $32.62 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
| Cozoy D1 | Simgot EW100P | |
|---|---|---|
| Price | $35.89 | $32.62 |
| Ranked | #25 of 1291 in In-Ear Headphones | #37 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic |
| Impedance | 32 ohms | 32 ohms |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 84 (median of 26 squig.link measurements, calibrated to AutoEQ) | 83 (measured by oratory1990, via AutoEQ) |
| Deviation From Target | 1.14 dB standard deviation | 1.49 dB standard deviation |
| Tonal Tilt | -0.06 (negative is warmer, positive brighter) | -0.07 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.0 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.4 dB at 30 Hz) |
| Sensitivity | - | 122 dB |
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 Cozoy D1 from aftersound, ankramutt, audioamigo, awsmdanny, bassaudio, digaoreviews, dl, ducbloke, elrics, fahryst, fernandagunsan, hbb, hobbytalk, jaytiss, lumerion, musicafe, practiphile, pw, silicagel, sl0the, soundcheck39, soundignity, superreview, suporsalad, theaudiostore and tonedeafmonk; the Simgot EW100P from achoreviews, aden, aftersound, aquaphobic, arn, boizoff, cammyfi, cqtek, csi-zone, flare, harpo, hobbytalk, ianfann, kazi, mmagtech, nymz, obodio, pw, soundcheck39, soundignity, suporsalad, theaudiostore, therollo9, tonedeafmonk, treblewellxtended and vortexreviews, all via squig.link.
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