Hidizs MP143 Salt 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 MP143 Salt
Letshuoer S12 Ultra

HearWiki score

Sound

7.8

8.6

Value

7.8

8.9

Price (USD)

$150

$170

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

Letshuoer S12 Ultra (2025) against Hidizs MP143 Salt (2024). These are 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.

MP143 Salt2024
S12 Ultra20251 yr newer

Specifications

MP143 SaltS12 Ultra

Type: Wired IEMs; Wired IEMs
Price (USD): $150; $170
HearWiki score: 75; 83
Released: 2024; 2025
Availability: Still sold new; Sold new
Driver: 14.3 mm planar magnetic; 1 planar magnetic
Driver type: planar; planar
Driver configuration: -; 1 planar magnetic
Driver size: 14.3 mm; 14.8 mm
Drivers per side: 1; 1
Frequency response: 20 Hz - 40 kHz; -
Sound signature: neutral; -
Impedance: 17 Ω; 16 Ω
Sensitivity: 103 dB/mW; -
Active noise cancelling: No; -
Companion app: No; -
Custom EQ: No; -
Wear detection: No; -
Controls: none; -
Weight: 16 g; -
Detachable cable: Yes; -
USB-C: No; -
Connector: 4.4 mm balanced; -

Specification comparison of Hidizs MP143 Salt vs Letshuoer S12 Ultra
Spec	Hidizs MP143 Salt	Letshuoer S12 Ultra
Type	Wired IEMs	Wired IEMs
Price (USD)	$150	$170
HearWiki score	75 / 100 Great	83 / 100 Outstanding
Released	2024	2025
Audio
Driver	14.3 mm planar magnetic	1 planar magnetic
Driver type	planar	planar
Driver configuration	-	1 planar magnetic
Driver size	14.3 mm	14.8 mm
Drivers per side	1	1
Frequency response	20 Hz - 40 kHz	-
Sound signature	neutral	-
Impedance	17 Ω	16 Ω
Sensitivity	103 dB/mW	-
Features
Active noise cancelling	No	-
Companion app	No	-
Custom EQ	No	-
Wear detection	No	-
Controls	none	-
Design
Weight	16 g	-
Detachable cable	Yes	-
USB-C	No	-
Connector	4.4 mm balanced	-

What reviewers said

Hidizs MP143 Salt

The Hidizs MP143 Salt is a budget-friendly planar IEM with a neutral sound signature, offering a spacious and engaging presentation that suits orchestral, rock, and electronic genres. It delivers solid technical performance and easy drivability, though its shell design may favor larger ears and its timbre can lean slightly metallic.

Pro:Excellent value for planar performance
Pro:Spacious and atmospheric soundstage
Pro:Easy to drive with any source

Con:Mids can sound slightly recessed or hazy
Con:Upper treble may be subdued for some
Con:Timbre can be a bit metallic

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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New comparison Hidizs MP143 Salt Letshuoer S12 Ultra