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Cozoy D2 vs KZ ZES: which should you buy?

On aggregated review scores the Cozoy D2 comes out ahead with a HearWiki score of 81. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Cozoy D2 - Outstanding overall at around $55.

Score breakdown

Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.

Cozoy D2 leads on 3 of 4 measures.

  • Cozoy D2
  • KZ ZES
HearWiki score
81
63
Sound
8.5
6.1
Value
9.0
4.8
Price (USD)
$55
$47

Generation & platform

The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?

Same generation

The Cozoy D2 is 4 years newer, but it is the same generation of hardware: nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price. For 4 years between them, that is a thin return - treat this as a restyle rather than a new platform.

  • D220264 yr newer
  • ZES2022

Specifications

D2ZES
Type
Wired IEMs
Wired IEMs
Price (USD)
$55
$47
HearWiki score
81
63
Released
2026
2022
Availability
Sold new
Still sold new
Driver
2DD
2-driver hybrid
Driver type
dynamic
hybrid
Driver configuration
2DD
-
Driver size
-
12 mm
Drivers per side
2
2
Frequency response
-
20 Hz - 40 kHz
Impedance
20 Ω
32 Ω
Sensitivity
-
113 dB/mW
Active noise cancelling
-
No
Detachable cable
-
Yes
Connector
2-pin 0.78 mm
3.5 mm

What reviewers said

Cozoy D2

The Cozoy D2 is a budget-friendly wired IEM that pairs a 6 mm beryllium driver with a 10 mm graphene-composite driver for a dual-dynamic setup. It offers a flexible connection via a 2-pin 0.78 mm cable that includes swappable 3.5 mm and 4.4 mm plugs, catering to both standard and balanced sources. With a 20-ohm impedance, it's easy to drive from most devices.

  • Pro:Dual-driver hybrid design for detailed sound
  • Pro:Interchangeable 3.5 mm and 4.4 mm plugs
  • Pro:Low impedance (20 ohms) for easy pairing
  • Con:No active noise cancellation
  • Con:Wired only, limiting portability
  • Con:Budget build may not suit all users

KZ ZES

The KZ ZES is a wired hybrid IEM with a 12mm dynamic driver paired with a tweeter, delivering a lively, V-shaped sound signature that emphasizes bass impact and crisp treble. Its 32-ohm impedance and 113dB sensitivity make it easy to drive from most sources, while the detachable cable adds practical versatility. With a solid build and energetic tuning, it's a fun budget pick for bass lovers who still want clear vocals.

  • Pro:Punchy, engaging bass from the larger dynamic driver
  • Pro:Clear and extended treble for energetic playback
  • Pro:Detachable 3.5mm cable for easy replacement
  • Con:Midrange can feel recessed due to V-shaped tuning
  • Con:Treble may be sharp for sensitive listeners
  • Con:No noise isolation or ANC features

Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.

Compare something else

Swap either side out, or start again from the picker.

New comparisonCozoy D2KZ ZES