Short answer: the KZ ZS10 Pro X. It ranks #272 of 657 in-ear headphones by sound quality, rated 4.1/5, at $53.19; the KZ ZS10 Pro 2 ranks #417, rated 3.7/5, at $52.24. Close enough in price that the sound-quality gap is the deciding factor.
The case for the KZ ZS10 Pro 2: The median of 9 hobbyist measurements gives it a solid Harman preference score of 70 with a 2.13 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural. The catch: An 8 dB peak near 10.9 kHz can make cymbals and sibilance sound sharp.
The KZ ZS10 Pro X is the better-sounding choice. The median of 10 hobbyist measurements gives it a very good Harman preference score of 75 with a 1.86 dB spread, and its mids sit within about 0.9 dB of target, so vocals and instruments sound natural. The catch: A 6.4 dB peak near 10.6 kHz can make cymbals and sibilance sound sharp.
Buy the KZ ZS10 Pro X. It is rated higher for sound quality, and saving $0.95 with the KZ ZS10 Pro 2 does not make up for the sound-quality gap.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| KZ ZS10 Pro 2 | KZ ZS10 Pro X | |
|---|---|---|
| Price | $52.24 | $53.19 |
| Ranked | #417 of 657 in In-Ear Headphones | #272 of 657 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 70 (median of 9 squig.link measurements, calibrated to AutoEQ) | 75 (median of 10 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.13 dB standard deviation | 1.86 dB standard deviation |
| Tonal Tilt | +0.80 (negative is warmer, positive brighter) | -0.33 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.9 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+0.7 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 4 balanced armature) | Hybrid |
| Drivers | 1 x 10mm dynamic + 4 x balanced armature | 1 x 10mm dynamic + 4 x balanced armature |
| Sensitivity | 108 dB | - |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) | 20Hz - 40kHz |
| Impedance | - | 29 ohms |
Related Headphone Comparisons
How KZ ZS10 Pro X compares with other leading options:
- KZ ZS10 Pro vs KZ ZS10 Pro X
- KZ ZS10 Pro 2 vs KZ ZSX
- KZ ZS10 Pro 2 vs TFZ T2 Galaxy
- DUNU Titan X vs KZ ZS10 Pro 2
- KZ ZS10 Pro vs KZ ZS10 Pro 2
Prices on this page were last checked October 12, 2026 at 4:13 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
KZ ZS10 Pro 2: $52.24 Amazon $52.24 eBay
Older model: the KZ ZS10 Pro (ranked lower, rated 3.6/5). See every KZ ZS10 Pro generation.
Pros: The median of 9 hobbyist measurements gives it a solid Harman preference score of 70 with a 2.13 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural. It uses 1 x 10mm dynamic + 4 x balanced armature.
Cons: An 8 dB peak near 10.9 kHz can make cymbals and sibilance sound sharp. Sub-bass is 3.9 dB short at 30 Hz, so deep bass lacks rumble.
Full KZ ZS10 Pro 2 review and specifications →
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.13 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 4 balanced armature) |
| Drivers | 1 x 10mm dynamic + 4 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 70 (median of 9 squig.link measurements, calibrated to AutoEQ) |
| Sensitivity | 108 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.9 dB at 30 Hz) |
| Tonal Tilt | +0.80 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
KZ ZS10 Pro X: $53.19 Amazon $53.19 eBay
Pros: The median of 10 hobbyist measurements gives it a very good Harman preference score of 75 with a 1.86 dB spread, and its mids sit within about 0.9 dB of target, so vocals and instruments sound natural. Bass is lifted about 2.3 dB with extension to 20 Hz, giving kick drums and bass lines extra weight. It uses 1 x 10mm dynamic + 4 x balanced armature with an easy 29 ohm load.
Cons: A 6.4 dB peak near 10.6 kHz can make cymbals and sibilance sound sharp.
Full KZ ZS10 Pro X review and specifications →
| Released | Aug 2022 (4 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.86 dB standard deviation |
| Driver Type | Hybrid |
| Drivers | 1 x 10mm dynamic + 4 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz |
| Harman Preference Score | 75 (median of 10 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 29 ohms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.7 dB at 30 Hz) |
| Tonal Tilt | -0.33 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons