Short answer: the Simgot EM10. It ranks #141 of 450 in-ear headphones by sound quality, rated 4.3/5, at $499.99. The NiceHCK Rockies ranks #176, rated 4.2/5, at $489, $10.99 cheaper, not enough of a saving to outweigh the sound-quality gap.
Buy the Simgot EM10. It is rated higher for sound quality, and saving $10.99 with the NiceHCK Rockies does not make up for the sound-quality gap.
Looking for alternatives? See the complete Headphones rankings.
Specifications Side By Side
| Simgot EM10 | NiceHCK Rockies | |
|---|---|---|
| Price | $499.99 | $489.00 |
| Ranked | #141 of 450 in In-Ear Headphones | #176 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 78 (median of 19 squig.link measurements, calibrated to AutoEQ) | 77 (median of 12 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.38 dB standard deviation | 1.57 dB standard deviation |
| Tonal Tilt | -0.64 (negative is warmer, positive brighter) | -0.30 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+3.2 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 + 8 balanced armature + 1 piezoelectric) | Hybrid (1 dynamic + 2 balanced armature + 2 electrostatic) |
| Drivers | 1 x 8mm dynamic + 8 x balanced armature + 1 x piezoelectric | 1 x 10mm dynamic + 2 x balanced armature + 2 x electrostatic |
| Impedance | 41.6 ohms | 9.8 ohms |
| Sensitivity | 120 dB/Vrms | 121 dB/Vrms |
| Frequency Response | 8Hz - 40kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Built-in Microphone | No | - |
Related Headphone Comparisons
More worthwhile head-to-heads for Simgot EM10:
- Simgot EM10 vs Moritz Dragon
- Simgot EM10 vs Xenns Mangird Top Pro
- NiceHCK Rockies vs Xenns Mangird Top Pro
- NiceHCK Rockies vs TANGZU Zetian Wu
- Fatfreq Hayabusa vs NiceHCK Rockies
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Headphones In Full
Simgot EM10: $499.99 Linsoul eBay
Full Simgot EM10 review and specifications →
| Released | May 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 1.38 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 8 balanced armature + 1 piezoelectric) |
| Drivers | 1 x 8mm dynamic + 8 x balanced armature + 1 x piezoelectric |
| Form Factor | In-ear |
| Frequency Response | 8Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 78 (median of 19 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 41.6 ohms |
| Sensitivity | 120 dB/Vrms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+3.2 dB at 30 Hz) |
| Tonal Tilt | -0.64 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
NiceHCK Rockies: $489.00 Amazon eBay
Full NiceHCK Rockies review and specifications →
| Released | Jul 2025 (1 year ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.57 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 2 balanced armature + 2 electrostatic) |
| Drivers | 1 x 10mm dynamic + 2 x balanced armature + 2 x electrostatic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 77 (median of 12 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 9.8 ohms |
| Sensitivity | 121 dB/Vrms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.1 dB at 30 Hz) |
| Tonal Tilt | -0.30 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons