Short answer: the KZ ZS12 Pro 2. It ranks #128 of 450 in-ear headphones by sound quality, rated 4.3/5, at $37.59; the KZ ZS12 Pro X ranks #268, rated 4.0/5, and costs $53.99, so there is little reason to consider the other one.
Buy the KZ ZS12 Pro 2. It is rated higher for sound quality than the KZ ZS12 Pro X and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Headphones rankings.
Specifications Side By Side
| KZ ZS12 Pro 2 | KZ ZS12 Pro X | |
|---|---|---|
| Price | $37.59 | $53.99 |
| Ranked | #128 of 450 in In-Ear Headphones | #268 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 78 (median of 4 squig.link measurements, calibrated to AutoEQ) | 73 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.66 dB standard deviation | 2.01 dB standard deviation |
| Tonal Tilt | +0.10 (negative is warmer, positive brighter) | +0.53 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-3.1 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 5 balanced armature) | Hybrid (1 dynamic + 5 balanced armature) |
| Drivers | 1 x 10mm dynamic + 5 x balanced armature | 1 x dynamic + 5 x balanced armature |
| Impedance | - | 25 ohms |
| Sensitivity | - | 106 dB/mW |
| Frequency Response | - | 20Hz - 40kHz (Manufacturer specified) |
Related Headphone Comparisons
More top alternatives to KZ ZS12 Pro 2:
- Aful Performer 5 vs Aful Performer 7
- Kiwi Ears Cadenza vs Kiwi Ears Cadenza II
- 7Hz x Crinacle Zero 2 vs KZ ZSN Pro
- 7Hz x Crinacle Zero 2 vs CCA CRA
- KZ ZSN Pro X vs KZ ZSN Pro
Prices on this page were last checked October 10, 2026 at 5:37 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
KZ ZS12 Pro 2: $37.59 Amazon eBay
Full KZ ZS12 Pro 2 review and specifications →
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 1.66 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 5 balanced armature) |
| Drivers | 1 x 10mm dynamic + 5 x balanced armature |
| Form Factor | In-ear |
| Harman Preference Score | 78 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.3 dB at 30 Hz) |
| Tonal Tilt | +0.10 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
KZ ZS12 Pro X: $53.99 Amazon eBay
Full KZ ZS12 Pro X review and specifications →
| Released | 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 2.01 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 5 balanced armature) |
| Drivers | 1 x dynamic + 5 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 73 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 25 ohms |
| Sensitivity | 106 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.1 dB at 30 Hz) |
| Tonal Tilt | +0.53 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples