Hidizs MS3 vs Letshuoer S12 Ultra: which should you buy?

On aggregated review scores the Letshuoer S12 Ultra comes out ahead with a HearWiki score of 83. The full breakdown - sub-scores, specs and what reviewers actually said - is below.

Our pick: Letshuoer S12 Ultra - Outstanding overall at around $169.

Wired IEMs

Score breakdown

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

Letshuoer S12 Ultra leads on 3 of 4 measures.

Hidizs MS3
Letshuoer S12 Ultra

HearWiki score

Sound

8.0

8.6

Value

8.8

8.9

Price (USD)

$90

$170

Specifications

MS3S12 Ultra

Type: Wired IEMs; Wired IEMs
Price (USD): $90; $170
HearWiki score: 78; 83
Released: 2023; 2025
Availability: Still sold new; Sold new
Driver: 1DD + 2BA hybrid; 1 planar magnetic
Driver type: hybrid; planar
Driver configuration: 1DD + 2BA; 1 planar magnetic
Driver size: 10.2 mm; 14.8 mm
Drivers per side: 3; 1
Frequency response: 20 Hz - 40 kHz; -
Impedance: 18 Ω; 16 Ω
Sensitivity: 112 dB/mW; -
Controls: none; -
Weight: 7 g; -
Detachable cable: Yes; -
USB-C: No; -
Connector: 4.4 mm balanced; -

Specification comparison of Hidizs MS3 vs Letshuoer S12 Ultra
Spec	Hidizs MS3	Letshuoer S12 Ultra
Type	Wired IEMs	Wired IEMs
Price (USD)	$90	$170
HearWiki score	78 / 100 Great	83 / 100 Outstanding
Released	2023	2025
Audio
Driver	1DD + 2BA hybrid	1 planar magnetic
Driver type	hybrid	planar
Driver configuration	1DD + 2BA	1 planar magnetic
Driver size	10.2 mm	14.8 mm
Drivers per side	3	1
Frequency response	20 Hz - 40 kHz	-
Impedance	18 Ω	16 Ω
Sensitivity	112 dB/mW	-
Features
Controls	none	-
Design
Weight	7 g	-
Detachable cable	Yes	-
USB-C	No	-
Connector	4.4 mm balanced	-

What reviewers said

Hidizs MS3

The Hidizs MS3 is a triple-driver hybrid IEM that pairs a 10.2mm dynamic driver with two balanced armatures for a lively, energetic sound. It offers strong value with a bass-forward character and solid technical performance, though its tuning may not suit listeners seeking a perfectly neutral or reference signature. The build and included accessories are notable for the price point.

Pro:Engaging, lively sound signature
Pro:Solid build quality and accessories
Pro:Good value for the price

Con:Bass can overshadow midrange and treble detail
Con:Not a balanced or neutral tuning
Con:No inline controls or microphone

Letshuoer S12 Ultra

The Letshuoer S12 Ultra is a wired in-ear monitor that delivers Hi-Fi sound through a single 14.8mm planar magnetic driver housed in a lightweight aluminum-alloy shell. Aimed at music enthusiasts, it offers the signature planar-driver clarity and detail of the S12 series in a refreshed design, without any active noise cancellation or wireless features. Priced around $169, it's a straightforward, high-performance option for wired listening.

Pro:Detailed and fast planar magnetic sound
Pro:Lightweight and durable aluminum-alloy build
Pro:Accurate bass response with low distortion

Con:Requires a wired connection, no wireless freedom
Con:No active noise cancellation for noisy environments
Con:Open-back style may leak sound in quiet settings

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

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