7HZ FIVE 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.

7HZ FIVE
Letshuoer S12 Ultra

HearWiki score

Sound

6.6

8.6

Value

5.8

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 7HZ FIVE (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.

FIVE2024
S12 Ultra20251 yr newer

Specifications

FIVES12 Ultra

Type: Wired IEMs; Wired IEMs
Price (USD): $150; $170
HearWiki score: 61; 83
Released: 2024; 2025
Availability: Discontinued; Sold new
Driver: 5DD; 1 planar magnetic
Driver type: dynamic; planar
Driver configuration: 5DD; 1 planar magnetic
Driver size: 6 mm; 14.8 mm
Drivers per side: 5; 1
Impedance: -; 16 Ω

Specification comparison of 7HZ FIVE vs Letshuoer S12 Ultra
Spec	7HZ FIVE	Letshuoer S12 Ultra
Type	Wired IEMs	Wired IEMs
Price (USD)	$150	$170
HearWiki score	61 / 100 Average	83 / 100 Outstanding
Released	2024	2025
Audio
Driver	5DD	1 planar magnetic
Driver type	dynamic	planar
Driver configuration	5DD	1 planar magnetic
Driver size	6 mm	14.8 mm
Drivers per side	5	1
Impedance	-	16 Ω

What reviewers said

7HZ FIVE

This wired in-ear monitor packs five custom 6mm dynamic drivers per side, each housed in its own acoustic chamber to deliver a detailed and immersive listening experience. The multi-driver setup aims for high-fidelity reproduction across the frequency range, making it a solid choice for critical music listening without any active noise cancellation.

Pro:Five dynamic drivers per side for rich, layered sound
Pro:Individual acoustic chambers reduce driver interference
Pro:Compact 6mm drivers allow for a comfortable fit

Con:No active noise cancellation, so external sounds bleed in
Con:Requires a separate amplifier or high-quality source to shine
Con:Five drivers may add weight or bulk compared to single-driver IEMs

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 7HZ FIVE Letshuoer S12 Ultra