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Etymotic ER4XR Earphones vs Kiwi Ears KE4: which should you buy?

On aggregated review scores the Kiwi Ears KE4 comes out ahead with a HearWiki score of 84. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Kiwi Ears KE4 - Outstanding overall at around $199.

Score breakdown

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

Kiwi Ears KE4 leads on 4 of 4 measures.

  • Etymotic ER4XR Earphones
  • Kiwi Ears KE4
HearWiki score
74
84
Sound
8.1
8.6
Value
5.6
8.6
Price (USD)
$270
$200

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 8 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 8 years between them, that is a thin return - treat this as a restyle rather than a new platform.

  • ER4XR Earphones2016
  • KE420248 yr newer

Specifications

ER4XR EarphonesKE4
Type
Wired IEMs
Wired IEMs
Price (USD)
$270
$200
HearWiki score
74
84
Released
2016
2024
Availability
Still sold new
Still sold new
Driver
balanced armature
2DD + 2BA hybrid
Driver type
balanced-armature
hybrid
Driver configuration
-
2DD + 2BA
Driver size
-
10 mm
Drivers per side
1
4
Frequency response
20 Hz - 16 kHz
-
Impedance
45 Ω
28 Ω
Sensitivity
98 dB/mW
-
Active noise cancelling
No
No
ANC type
none
-
Transparency mode
No
-
Companion app
No
-
Custom EQ
No
-
Wear detection
No
-
Controls
none
-
Detachable cable
Yes
Yes
USB-C
No
-
Connector
3.5 mm
3.5 mm

What reviewers said

Etymotic ER4XR Earphones

The Etymotic ER4XR is a wired, single balanced-armature in-ear monitor known for its precise, analytical sound and excellent passive noise isolation thanks to a deep-insertion fit. It’s a compact and durable choice for focused listening, though its minimalist design lacks onboard controls and modern conveniences, making it more suited to professionals than casual users.

  • Pro:Excellent passive isolation
  • Pro:Analytical and detailed mid-range
  • Pro:Compact and durable build
  • Con:Deep insertion fit may be uncomfortable
  • Con:Bass-light tuning not for everyone
  • Con:No inline remote or controls

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

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

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