1MORE H1023 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 5 measures.

1MORE H1023
Letshuoer S12 Ultra

HearWiki score

Sound

7.4

8.6

Calls

5.8

Value

5.4

8.9

Price (USD)

$130

$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 1MORE H1023 (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.

H10232024
S12 Ultra20251 yr newer

Specifications

H1023S12 Ultra

Type: Wired IEMs; Wired IEMs
Price (USD): $130; $170
HearWiki score: 66; 83
Released: 2024; 2025
Availability: Discontinued; Sold new
Driver: 1DD + 3BA hybrid; 1 planar magnetic
Driver type: hybrid; planar
Driver configuration: 1DD + 3BA; 1 planar magnetic
Driver size: -; 14.8 mm
Drivers per side: 4; 1
Frequency response: 20 Hz - 40 kHz; -
Impedance: 32 Ω; 16 Ω
Active noise cancelling: No; -
Weight: 18.5 g; -
Connector: 3.5 mm; -
Model code: E1010; -
Microphones: 1; -
Microphone type: MEMS; -

Specification comparison of 1MORE H1023 vs Letshuoer S12 Ultra
Spec	1MORE H1023	Letshuoer S12 Ultra
Type	Wired IEMs	Wired IEMs
Price (USD)	$130	$170
HearWiki score	66 / 100 Good	83 / 100 Outstanding
Released	2024	2025
Audio
Driver	1DD + 3BA hybrid	1 planar magnetic
Driver type	hybrid	planar
Driver configuration	1DD + 3BA	1 planar magnetic
Driver size	-	14.8 mm
Drivers per side	4	1
Frequency response	20 Hz - 40 kHz	-
Impedance	32 Ω	16 Ω
Features
Active noise cancelling	No	-
Design
Weight	18.5 g	-
Connector	3.5 mm	-
Model code	E1010	-
Calls
Microphones	1	-
Microphone type	MEMS	-

What reviewers said

1MORE H1023

The 1MORE H1023 is a wired hybrid in-ear monitor that combines one dynamic driver with three balanced armatures for a detailed, warm sound signature. It offers a premium build and impressive clarity for its price, making it a strong choice for critical listening despite its limited soundstage. The included accessory bundle adds to its overall value.

Pro:Premium build quality
Pro:Detailed and warm sound
Pro:Good value for the price

Con:Limited soundstage due to in-ear design
Con:No active noise cancellation
Con:Wired only, no wireless option

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 1MORE H1023 Letshuoer S12 Ultra