Short answer: the CrinEar Daybreak. It ranks #403 of 1368 in-ear headphones by sound quality, rated 4.0/5, at $169.99; the Letshuoer S12 Ultra ranks #706, rated 3.6/5, at $169. Close enough in price that the sound-quality gap is the deciding factor.
The CrinEar Daybreak is the better-sounding option. The median of 33 hobbyist measurements gives it a solid Harman preference score of 74 with a 1.71 dB spread. Watch for: Presence sits about 4 dB low with a 6.8 dB dip near 6.5 kHz, so vocals and instruments lose some bite.
Why pick the Letshuoer S12 Ultra: The median of 12 hobbyist measurements gives it a solid Harman preference score of 69 with a 2.18 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural. The catch: Presence sits about 4 dB low with a 6 dB dip near 3.4 kHz, so vocals and instruments lose some bite.
Buy the CrinEar Daybreak. It is rated higher for sound quality, and saving $0.99 with the Letshuoer S12 Ultra does not make up for the sound-quality gap.
Looking for alternatives? See the complete Headphones rankings.
The median of 33 hobbyist measurements gives it a solid Harman preference score of 74 with a 1.71 dB spread.
Amazon $169.99 eBay
The median of 12 hobbyist measurements gives it a solid Harman preference score of 69 with a 2.18 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural.
Amazon $169.00 eBayPrices on this page were last checked October 19, 2026 at 10:32 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
| CrinEar Daybreak | Letshuoer S12 Ultra | |
|---|---|---|
| Price | $169.99 | $169.00 |
| Ranked | #403 of 1368 in In-Ear Headphones | #706 of 1368 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 74 (median of 33 squig.link measurements, calibrated to AutoEQ) | 69 (median of 12 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.71 dB standard deviation | 2.18 dB standard deviation |
| Tonal Tilt | -0.56 (negative is warmer, positive brighter) | -0.68 (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 (+2.1 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 2 balanced armature + 2 planar) | Planar |
| Drivers | 1 x dynamic + 2 x balanced armature + 2 x micro planar | 1 x 14.8mm planar magnetic |
| Impedance | 20 ohms | 16 ohms |
| Sensitivity | 105 dB/mW | 101 dB |
| Frequency Response | 2Hz - 40kHz (Manufacturer specified) | 20Hz - 40kHz (Manufacturer specified) |
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 CrinEar Daybreak from aden, aftersound, animagus, atechreviews, audioamigo, banzai1122, bassaudio, boizoff, csi-zone, ducbloke, eliseaudio, elrics, fernandagunsan, flare, gadgetrytech, harutohiroki, hbb, hobbytalk, iemocean, jaytiss, joycesreview, lestat, listener, lown-fi, practiphile, pw, silicagel, sl0the, soundignity, superreview, suporsalad, timmyv and treblewellxtended; the Letshuoer S12 Ultra from aden, atechreviews, audioamigo, cqtek, eplv, flare, hbb, jaytiss, pw, soundignity, superreview and tonedeafmonk, all via squig.link.
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