Wired IEMs
Letshuoer S12 Ultra
83Outstanding
$170
Full review dataLetshuoer S12 Ultra vs Moondrop Aria: 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
Moondrop Aria
68Good
$120
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
- Moondrop Aria
HearWiki score
83
68
Sound
8.6
7.3
Value
8.9
6.4
Price (USD)
$170
$120
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 4 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. For 4 years between them, that is a thin return - treat this as a restyle rather than a new platform.
- S12 Ultra20254 yr newer
- Aria2021
Specifications
S12 UltraAria
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $170
- $120
- HearWiki score
- 83
- 68
- Released
- 2025
- 2021
- Availability
- Sold new
- Still sold new
- Driver
- 1 planar magnetic
- 10 mm dynamic
- Driver type
- planar
- dynamic
- Driver configuration
- 1 planar magnetic
- -
- Driver size
- 14.8 mm
- 10 mm
- Drivers per side
- 1
- 1
- Frequency response
- -
- 5 Hz - 36 kHz
- Impedance
- 16 Ω
- 32 Ω
- Sensitivity
- -
- 122 dB/mW
- Active noise cancelling
- -
- No
- Companion app
- -
- No
- Custom EQ
- -
- No
- Wear detection
- -
- No
- Controls
- -
- none
- Weight
- -
- 12 g
- USB-C
- -
- No
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
Moondrop Aria
The Moondrop Aria is a wired dynamic in-ear monitor delivering a balanced, slightly warm sound signature with a touch of extra punch. It's easy to drive from phones, well-built, and offers a removable 2-pin cable, though its passive isolation is only average and it lacks any onboard controls.
- Pro:Balanced, warm tuning with good detail
- Pro:Easy to drive thanks to high sensitivity
- Pro:Solid build quality
- Con:Weak passive isolation
- Con:No playback controls
- Con:Cable prone to tangling and noise
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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