Skip to content
HearWiki

Kiwi Ears KE4 vs Whizzer Haydn A15 Pro: which should you buy?

Specs, scores and condensed review verdicts for the Kiwi Ears KE4 vs Whizzer Haydn A15 Pro, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.

Score breakdown

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

Kiwi Ears KE4 leads on 3 of 4 measures.

  • Kiwi Ears KE4
  • Whizzer Haydn A15 Pro
HearWiki score
84
-
Sound
8.6
-
Value
8.6
-
Price (USD)
$200
$120

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 Kiwi Ears KE4 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.

  • KE420244 yr newer
  • Haydn A15 Pro2020

Specifications

KE4Haydn A15 Pro
Type
Wired IEMs
Wired IEMs
Price (USD)
$200
$120
HearWiki score
84
Not scored
Released
2024
2020
Availability
Still sold new
Discontinued
Driver
2DD + 2BA hybrid
10 mm dynamic
Driver type
hybrid
dynamic
Driver configuration
2DD + 2BA
-
Driver size
10 mm
10 mm
Drivers per side
4
1
Frequency response
-
20 Hz - 40 kHz
Impedance
28 Ω
16 Ω
Sensitivity
-
98 dB/mW
Active noise cancelling
No
No
Controls
-
buttons
Weight
-
8 g
Detachable cable
Yes
Yes
USB-C
-
No
Connector
3.5 mm
-

What reviewers said

Kiwi Ears KE4

The Kiwi Ears KE4 is a wired hybrid IEM that offers a balanced, relaxing sound with a distinct twist on the popular 'New Meta' tuning, adding extra bass and treble sparkle. It delivers solid midrange clarity and a comfortable fit, making it a versatile choice for many genres, though its smooth presentation may not excite those seeking aggressive or highly dynamic sound.

  • Pro:Well-balanced hybrid tuning with rich lower mids and airy treble
  • Pro:Comfortable fit and broad genre versatility
  • Pro:Good resolution and clarity for its price
  • Con:Sub-bass can get overpowering at times
  • Con:Limited resolving power and dynamic impact
  • Con:Smooth tuning may feel less exciting than V-shaped alternatives

Whizzer Haydn A15 Pro

The Whizzer Haydn A15 Pro is a wired in-ear monitor built around a single 10mm dynamic driver, delivering a wide frequency range from 20 Hz to 40 kHz. It comes with a detachable Y-type MMCX cable terminating in a 3.5mm plug, and offers onboard button controls for easy playback management. With a lightweight 8-gram build and 16-ohm impedance, it's designed for straightforward, high-sensitivity listening without active noise cancellation.

  • Pro:Lightweight 8g design for comfortable wear
  • Pro:Detachable MMCX cable allows easy upgrades
  • Pro:Wide frequency response up to 40 kHz
  • Con:No active noise cancellation
  • Con:Wired only, no USB-C connectivity
  • Con:Single dynamic driver may lack multi-driver detail

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 comparisonKiwi Ears KE4Whizzer Haydn A15 Pro