Hidizs MS4 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.

Wired IEMs

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.

Hidizs MS4
Kiwi Ears KE4

HearWiki score

Sound

6.5

8.6

Value

4.8

8.6

Price (USD)

$230

$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 2 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.

MS42022
KE420242 yr newer

Specifications

MS4KE4

Type: Wired IEMs; Wired IEMs
Price (USD): $230; $200
HearWiki score: 52; 84
Released: 2022; 2024
Availability: Discontinued; Still sold new
Driver: 1DD + 3BA hybrid; 2DD + 2BA hybrid
Driver type: hybrid; hybrid
Driver configuration: 1DD + 3BA; 2DD + 2BA
Driver size: 10.2 mm; 10 mm
Drivers per side: 4; 4
Frequency response: 15 Hz - 40 kHz; -
Impedance: 12 Ω; 28 Ω
Sensitivity: 112 dB/mW; -
Active noise cancelling: No; No
Weight: 18 g; -
Detachable cable: Yes; Yes
Connector: 3.5 mm; 3.5 mm

Specification comparison of Hidizs MS4 vs Kiwi Ears KE4
Spec	Hidizs MS4	Kiwi Ears KE4
Type	Wired IEMs	Wired IEMs
Price (USD)	$230	$200
HearWiki score	52 / 100 Average	84 / 100 Outstanding
Released	2022	2024
Audio
Driver	1DD + 3BA hybrid	2DD + 2BA hybrid
Driver type	hybrid	hybrid
Driver configuration	1DD + 3BA	2DD + 2BA
Driver size	10.2 mm	10 mm
Drivers per side	4	4
Frequency response	15 Hz - 40 kHz	-
Impedance	12 Ω	28 Ω
Sensitivity	112 dB/mW	-
Features
Active noise cancelling	No	No
Design
Weight	18 g	-
Detachable cable	Yes	Yes
Connector	3.5 mm	3.5 mm

What reviewers said

Hidizs MS4

The Hidizs MS4 is a wired hybrid in-ear monitor that pairs a 10.2mm dynamic driver with three balanced armatures for a spacious, detailed sound. Its build quality and accessory bundle are highlights, though the tuning leans relaxed and the low end can be less defined than some might prefer. It offers good value for its price point, but the larger shells may not suit all ears.

Pro:Strong build quality and premium materials
Pro:Rich accessory package included
Pro:Spacious and engaging soundstage with good detail

Con:Bass can feel slightly slow or muddy
Con:Overall tuning may be too relaxed for some listeners
Con:Large shells may be uncomfortable for smaller ears

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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