Wired IEMs
Letshuoer S12 Ultra
83Outstanding
$170
Full review dataLetshuoer S12 Ultra vs Simgot SuperMix 4: which should you buy?
Specs, scores and condensed review verdicts for the Letshuoer S12 Ultra vs Simgot SuperMix 4, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Wired IEMs
Simgot SuperMix 4
Not yet scored
$150
Full review dataScore 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 S12 Ultra
- Simgot SuperMix 4
HearWiki score
83
-
Sound
8.6
-
Value
8.9
-
Price (USD)
$170
$150
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 Simgot SuperMix 4 (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.
- S12 Ultra20251 yr newer
- SuperMix 42024
Specifications
S12 UltraSuperMix 4
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $170
- $150
- HearWiki score
- 83
- Not scored
- Released
- 2025
- 2024
- Availability
- Sold new
- Discontinued
- Driver
- 1 planar magnetic
- 1DD + 1BA + 1PL + 1PZT tribrid
- Driver type
- planar
- tribrid
- Driver configuration
- 1 planar magnetic
- 1DD + 1BA + 1PL + 1PZT
- Driver size
- 14.8 mm
- 10 mm
- Drivers per side
- 1
- 4
- Frequency response
- -
- 8 Hz - 40 kHz
- Impedance
- 16 Ω
- 7.2 Ω
- Sensitivity (dB/Vrms)
- -
- 120
- Active noise cancelling
- -
- No
- Connector
- -
- 2-pin 0.78 mm
What reviewers said
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
Simgot SuperMix 4
The Simgot SuperMix 4 is a wired in-ear monitor that blends four distinct driver technologies—dynamic, balanced armature, planar, and piezoelectric—to deliver a detailed and adaptable sound profile. With a low 7.2-ohm impedance and high sensitivity, it's easy to drive from most sources, making it a versatile choice for critical listening. It offers a wide frequency response from 8 Hz to 40 kHz, aiming to capture both deep lows and airy highs.
- Pro:Detailed and versatile tribrid tuning
- Pro:Wide frequency range for extended highs and lows
- Pro:Easy to drive due to low impedance and high sensitivity
- Con:Requires a reliable source due to very low impedance
- Con:No noise isolation features for noisy environments
- Con:Piezoelectric driver may sound bright to some listeners
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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