Short answer: a tie on sound quality. Both are rated 4.7/5 (#35 and #36 of 450 in-ear headphones) at nearly the same price ($22.99 vs $21.99), so choose on features and fit.
The case for the DDHiFi Janus 3: For a very low cost single dynamic in-ear, it measures a preference score of 82 in the median of four hobbyist measurements on squig.link. The catch: A 3.3 dB dip near 10.9 kHz dulls some cymbal shimmer, and the downward tilt toward bass makes it less suited to listeners who like a crisp, detailed top end.
Why pick the KZ EDZ: The EDZ is an inexpensive single dynamic driver set that scores 82 for preference in the median of six hobbyist measurements on squig.link. The tradeoff: Sub-bass falls about 2.3 dB below target, so deep synth and kick drum rumble is lighter than ideal, and the presence region is about 2.2 dB recessed with a dip near 6.3 kHz.
Buy the DDHiFi Janus 3 or the KZ EDZ on features: they are rated the same for sound quality at close to the same price.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| DDHiFi Janus 3 | KZ EDZ | |
|---|---|---|
| Price | $22.99 | $21.99 |
| Ranked | #35 of 450 in In-Ear Headphones | #36 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 82 (median of 4 squig.link measurements, calibrated to AutoEQ) | 82 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.10 dB standard deviation | 1.37 dB standard deviation |
| Tonal Tilt | -0.47 (negative is warmer, positive brighter) | +0.08 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.0 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.4 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x dynamic |
| Impedance | 14 ohms | 24 ohms |
| Sensitivity | 122 dB/Vrms | 107 dB/mW |
| Weight | 0 lbs (5.5 g) per earbud | - |
| Frequency Response | 5Hz - 58kHz (Manufacturer specified) | 7Hz - 45kHz (Manufacturer specified) |
Related Headphone Comparisons
More top alternatives to DDHiFi Janus 3:
- Aoshida E20 vs DDHiFi Janus 3
- DDHiFi Janus 3 vs KZ Gale
- Aoshida E20 vs KZ EDZ
- Truthear Gate vs KZ EDZ
- KZ EDZ vs KZ Gale
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
DDHiFi Janus 3: $22.99 Amazon eBay
Pros: For a very low cost single dynamic in-ear, it measures a preference score of 82 in the median of four hobbyist measurements on squig.link. Sub-bass and bass sit about 1.5 to 2 dB above target, so it delivers a warm, bass rich sound that bass lovers will enjoy. At 14 ohms and 122 dB/Vrms it plays loudly from a phone, and each earbud weighs just 5.5 g.
Cons: A 3.3 dB dip near 10.9 kHz dulls some cymbal shimmer, and the downward tilt toward bass makes it less suited to listeners who like a crisp, detailed top end. Only four samples were measured, so the figures carry more uncertainty than for widely measured models.
Full DDHiFi Janus 3 review and specifications →
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 1.10 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 5Hz - 58kHz (Manufacturer specified) |
| Harman Preference Score | 82 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 14 ohms |
| Sensitivity | 122 dB/Vrms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.0 dB at 30 Hz) |
| Tonal Tilt | -0.47 (negative is warmer, positive brighter) |
| Weight | 0 lbs (5.5 g) per earbud |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
KZ EDZ: $21.99 Amazon eBay
Pros: The EDZ is an inexpensive single dynamic driver set that scores 82 for preference in the median of six hobbyist measurements on squig.link. Bass, low mids and upper mids stay within half a dB of target, and the largest treble peak is only about 3 dB, so it sounds even and fatigue free. Its 107 dB/mW sensitivity makes it easy to drive from any phone.
Cons: Sub-bass falls about 2.3 dB below target, so deep synth and kick drum rumble is lighter than ideal, and the presence region is about 2.2 dB recessed with a dip near 6.3 kHz. The KZ Gale and Aoshida E20 earn the same rating at a similar price.
Full KZ EDZ review and specifications →
| Released | Jan 2026 (9 months ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.37 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x dynamic |
| Form Factor | In-ear |
| Frequency Response | 7Hz - 45kHz (Manufacturer specified) |
| Harman Preference Score | 82 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 24 ohms |
| Sensitivity | 107 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.4 dB at 30 Hz) |
| Tonal Tilt | +0.08 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons