Short answer: the EPZ G20. It ranks #9 of 263 in-ear headphones by sound quality, rated 4.9/5, at $49.99; the EPZ G30 ranks #41, rated 4.6/5, and costs $79.99, so there is little reason to consider the other one.
The EPZ G20 is the better-sounding choice. 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 EPZ G30: Four hobbyist measurements on squig.link give it a preference score of 81.5 with a smooth 1.35 dB deviation. Watch for: Presence falls about 3.2 dB below target, which tucks vocals slightly behind the instruments.
Buy the EPZ G20. It is rated higher for sound quality than the EPZ G30 and costs less, so only choose the other one for a particular feature it does better.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| EPZ G20 | EPZ G30 | |
|---|---|---|
| Price | $49.99 | $79.99 |
| Ranked | #9 of 263 in In-Ear Headphones | #41 of 263 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) | 82 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 0.99 dB standard deviation | 1.35 dB standard deviation |
| Tonal Tilt | +0.10 (negative is warmer, positive brighter) | -0.17 (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 (-1.4 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Hybrid (1 dynamic + 1 balanced armature) |
| Drivers | 1 x 10mm dynamic | 1 x 9.2mm dynamic + 1 x balanced armature |
| Sensitivity | 100 dB | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| Built-in Microphone | Yes | Yes |
| Weight | - | 0 lbs (4.4 g) per earbud |
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- EPZ G10 vs EPZ G20
- EPZ G10 vs EPZ G30
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- Truthear x Crinacle Zero RED vs Tin HiFi T4
- Tin HiFi C2 vs Tin HiFi C2 2025
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.
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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
EPZ G30: $79.99 Amazon eBay
Pros: Four hobbyist measurements on squig.link give it a preference score of 81.5 with a smooth 1.35 dB deviation. Bass sits about 0.9 dB above target with low mids close behind, giving a warm, full sound that suits bassy tastes. It weighs just 4.4 g per earbud and includes a built-in microphone, so it works for calls as well as music.
Cons: Presence falls about 3.2 dB below target, which tucks vocals slightly behind the instruments. A 5.0 dB peak near 8.1 kHz followed by a 5.6 dB dip near 11.9 kHz gives cymbals an uneven sheen and trims top-end air.
Full EPZ G30 review and specifications →
| Back | Closed |
|---|---|
| Built-in Microphone | Yes |
| Connection | Wired |
| Deviation From Target | 1.35 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 1 balanced armature) |
| Drivers | 1 x 9.2mm dynamic + 1 x balanced armature |
| Form Factor | In-ear |
| Harman Preference Score | 82 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.4 dB at 30 Hz) |
| Tonal Tilt | -0.17 (negative is warmer, positive brighter) |
| Weight | 0 lbs (4.4 g) per earbud |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons