Wired IEMs
Letshuoer S12 Ultra
83Outstanding
$170
Full review dataLetshuoer S12 Ultra vs Saccater aéra: 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
Saccater aéra
77Great
$99
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
- Saccater aéra
HearWiki score
83
77
Sound
8.6
7.8
Value
8.9
8.2
Price (USD)
$170
$99
Specifications
S12 Ultraaéra
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $170
- $99
- HearWiki score
- 83
- 77
- Released
- 2025
- 2026
- Availability
- Sold new
- Sold new
- Driver
- 1 planar magnetic
- 10 mm planar magnetic
- Driver type
- planar
- planar
- Driver configuration
- 1 planar magnetic
- -
- Driver size
- 14.8 mm
- 10 mm
- Drivers per side
- 1
- 1
- Frequency response
- -
- 20 Hz - 20 kHz
- Impedance
- 16 Ω
- 13 Ω
- Sensitivity
- -
- 103 dB/mW
- Weight
- -
- 4 g
- Detachable cable
- -
- Yes
- USB-C
- -
- Yes
- Microphones
- -
- 1
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
Saccater aéra
The Saccater aéra is a lightweight wired in-ear monitor built around a compact 10 mm planar magnetic driver, housed in a CNC-machined aluminum alloy shell that weighs just 4 grams. It delivers a lively, V-shaped sound with punchy bass and clear mids, along with a comfortable fit and a detachable cable with USB-C option. While its resolution may not match top-tier planars, it offers an engaging everyday listening experience at a budget-friendly price.
- Pro:Ultra-light 4g aluminum build for comfort
- Pro:Energetic V-shaped sound with punchy bass
- Pro:Clear midrange and lively treble
- Con:Sound quality is fit-dependent
- Con:Not as resolving as higher-end planar IEMs
- Con:Limited frequency response range (20 Hz-20 kHz)
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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