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ASTRO Gaming A03 vs Cozoy D2: 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 5 measures.

  • ASTRO Gaming A03
  • Cozoy D2
HearWiki score
45
81
Sound
5.7
8.5
Calls
4.9
-
Value
-
9.0
Price (USD)
$50
$55

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 6 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 6 years between them, that is a thin return - treat this as a restyle rather than a new platform.

  • A032020
  • D220266 yr newer

Specifications

A03D2
Type
Wired IEMs
Wired IEMs
Price (USD)
$50
$55
HearWiki score
45
81
Released
2020
2026
Availability
Discontinued
Sold new
Driver
2-driver hybrid
2DD
Driver type
hybrid
dynamic
Driver configuration
-
2DD
Driver size
5.8 mm
-
Drivers per side
2
2
Frequency response
20 Hz - 20 kHz
-
Sound signature
neutral
-
Impedance
16 Ω
20 Ω
Active noise cancelling
No
-
Controls
buttons
-
Voice assistant
No
-
Weight
20 g
-
USB-C
No
-
Connector
3.5 mm
2-pin 0.78 mm
Microphones
1
-

What reviewers said

ASTRO Gaming A03

The Astro Gaming A03 is a wired in-ear monitor designed for gaming, featuring a dual-driver hybrid setup that delivers a broad, neutral sound across a wide range of devices via its 3.5mm connector. It offers solid build quality and versatile performance for both gaming and music, though its single inline microphone is a notable weak point for competitive use. With a lightweight 20g design and simple button controls, it serves as a practical, budget-friendly alternative to full-sized gaming headsets.

  • Pro:Dual-driver hybrid design provides clear sound separation
  • Pro:Broad compatibility with 3.5mm devices and consoles
  • Pro:Lightweight and comfortable for extended sessions
  • Con:Microphone quality is subpar for competitive play
  • Con:Fit may not suit all ear shapes
  • Con:Music performance is only average compared to dedicated IEMs

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

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

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New comparisonASTRO Gaming A03Cozoy D2