Short answer: the EPZ G20. Both are rated 4.9/5 for sound quality (#9 and #13 of 450 in-ear headphones), and the EPZ G20 costs $49.99 against $69.99 for the Truthear Zero Blue 2, so with nothing between them on sound quality, price settles it.
Why pick the EPZ G20: The G20 is one of the most accurate inexpensive in-ears measured, with a preference score of 86 and under 1 dB of unevenness in the median of twelve hobbyist measurements on squig.link. Watch for: A 6.3 dB peak near 11.9 kHz adds extra air that can make some recordings sound a little hissy or splashy.
The case for the Truthear Zero Blue 2: The Zero Blue 2 uses two dynamic drivers and, across fourteen hobbyist measurements on squig.link, scores 85 for preference with about 1 dB of unevenness. The tradeoff: The air band runs about 3.9 dB above target and a 4.5 dB peak sits near 8.1 kHz, which can make sibilance and cymbals stand out on bright mixes.
Buy the EPZ G20. Both are rated the same for sound quality, and it costs $20 less than the Truthear Zero Blue 2.
Want more options? Browse the full Headphones rankings.
Specifications Side By Side
| EPZ G20 | Truthear Zero Blue 2 | |
|---|---|---|
| Price | $49.99 | $69.99 |
| Ranked | #9 of 450 in In-Ear Headphones | #13 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 86 (median of 12 squig.link measurements, calibrated to AutoEQ) | 85 (median of 16 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 0.99 dB standard deviation | 1.00 dB standard deviation |
| Tonal Tilt | +0.10 (negative is warmer, positive brighter) | -0.25 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.7 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+1.3 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic + 1 x 7.8mm dynamic |
| Sensitivity | 100 dB | 119.5 dB/Vrms |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 9Hz - 41kHz (Manufacturer specified) |
| Built-in Microphone | Yes | - |
| Impedance | - | 5.8 ohms |
Related Headphone Comparisons
How EPZ G20 compares with other leading options:
- EPZ G20 vs Truthear x Crinacle Zero RED
- EPZ G10 vs EPZ G20
- EPZ G20 vs EPZ Q1 Pro
- EPZ G20 vs ThieAudio Legacy 4
- EPZ G20 vs EPZ G30
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.
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The Two Headphones In Full
EPZ G20: $49.99 Amazon eBay
Pros: The G20 is one of the most accurate inexpensive in-ears measured, with a preference score of 86 and under 1 dB of unevenness in the median of twelve hobbyist measurements on squig.link. Bass, midrange and lower treble all land within about 1 dB of target, and sub-bass stays full down to 20 Hz. It matches the rating of the costlier Truthear Zero Blue 2 and includes an inline microphone.
Cons: A 6.3 dB peak near 11.9 kHz adds extra air that can make some recordings sound a little hissy or splashy. The EPZ Q1 Pro earns the same rating for a bit less money, and the 100 dB sensitivity figure is unremarkable, though still fine for a phone.
Full EPZ G20 review and specifications →
| Back | Closed |
|---|---|
| Built-in Microphone | Yes |
| Connection | Wired |
| Deviation From Target | 0.99 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 86 (median of 12 squig.link measurements, calibrated to AutoEQ) |
| Sensitivity | 100 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.7 dB at 30 Hz) |
| Tonal Tilt | +0.10 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Truthear Zero Blue 2: $69.99 Amazon eBay
Pros: The Zero Blue 2 uses two dynamic drivers and, across fourteen hobbyist measurements on squig.link, scores 85 for preference with about 1 dB of unevenness. Its warm tilt and sub-bass about 1 dB above target give it full, punchy low end, while mids stay neutral. Sensitivity of 119.5 dB/Vrms makes it effortless to drive from a phone.
Cons: The air band runs about 3.9 dB above target and a 4.5 dB peak sits near 8.1 kHz, which can make sibilance and cymbals stand out on bright mixes. The very low 5.8 ohm impedance can pick up hiss from noisy sources, and the EPZ G20 earns the same rating for less money.
Full Truthear Zero Blue 2 review and specifications →
| Released | Mar 2025 (1 year ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.00 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic + 1 x 7.8mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 9Hz - 41kHz (Manufacturer specified) |
| Harman Preference Score | 85 (median of 16 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 5.8 ohms |
| Sensitivity | 119.5 dB/Vrms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.3 dB at 30 Hz) |
| Tonal Tilt | -0.25 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons