Letshuoer DZ4 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.

Letshuoer DZ4
Letshuoer S12 Ultra

HearWiki score

Sound

6.2

8.6

Value

5.2

8.9

Price (USD)

$89

$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

The Letshuoer S12 Ultra 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.

DZ42023
S12 Ultra20252 yr newer

Specifications

DZ4S12 Ultra

Type: Wired IEMs; Wired IEMs
Price (USD): $89; $170
HearWiki score: 54; 83
Released: 2023; 2025
Availability: Discontinued; Sold new
Driver: 3DD + 1PR; 1 planar magnetic
Driver type: dynamic; planar
Driver configuration: 3DD + 1PR; 1 planar magnetic
Driver size: 6 mm; 14.8 mm
Drivers per side: 4; 1
Impedance: 12 Ω; 16 Ω
Active noise cancelling: No; -
Weight: 6 g; -

Specification comparison of Letshuoer DZ4 vs Letshuoer S12 Ultra
Spec	Letshuoer DZ4	Letshuoer S12 Ultra
Type	Wired IEMs	Wired IEMs
Price (USD)	$89	$170
HearWiki score	54 / 100 Average	83 / 100 Outstanding
Released	2023	2025
Audio
Driver	3DD + 1PR	1 planar magnetic
Driver type	dynamic	planar
Driver configuration	3DD + 1PR	1 planar magnetic
Driver size	6 mm	14.8 mm
Drivers per side	4	1
Impedance	12 Ω	16 Ω
Features
Active noise cancelling	No	-
Design
Weight	6 g	-

What reviewers said

Letshuoer DZ4

The Letshuoer DZ4 is a budget-friendly wired IEM that stands out with its unconventional three-dynamic-driver plus passive-radiator setup. It delivers a safe, relaxed, and neutral-warm sound that appeals to those seeking an easygoing all-rounder, though it doesn't push technical boundaries. While the build is solid and the tuning is inoffensive, it falls short in dynamics, bass impact, and treble sparkle compared to the best in its price range.

Pro:Interesting 3DD + PR driver configuration
Pro:Solid build quality for the price
Pro:Safe, neutral-warm tuning that's easy to listen to

Con:Average imaging and technical performance
Con:Lacks bass impact and dynamic punch
Con:Treble sparkle is subdued

Letshuoer S12 Ultra

The Letshuoer S12 Ultra is a wired in-ear monitor built around a single 14.8mm planar magnetic driver housed in a lightweight aluminum shell. It delivers the signature planar sound of the S12 line—fast, detailed, and punchy—in a refreshed design aimed at hi-fi enthusiasts. With a low 16-ohm impedance, it pairs easily with most sources, though it lacks any active noise cancellation.

Pro:Fast, detailed planar sound with strong dynamics
Pro:Lightweight and sturdy aluminum-alloy build
Pro:Easy to drive thanks to low impedance

Con:No noise cancellation or isolation features
Con:Planar timbre may not suit all listeners
Con:Cable and accessories are basic for the price

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 Letshuoer DZ4 Letshuoer S12 Ultra