Wired IEMs
CrinEar Daybreak
84Outstanding
$170
Full review dataCrinEar Daybreak vs Fosi Audio IM4: which should you buy?
On aggregated review scores the CrinEar Daybreak comes out ahead with a HearWiki score of 84. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: CrinEar Daybreak - Outstanding overall at around $170.
Wired IEMs
Fosi Audio IM4
72Great
$100
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
CrinEar Daybreak leads on 3 of 4 measures.
- CrinEar Daybreak
- Fosi Audio IM4
HearWiki score
84
72
Sound
8.8
7.4
Value
9.2
7.8
Price (USD)
$170
$100
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
Both shipped in 2025. 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.
- Daybreak2025
- IM42025
Specifications
DaybreakIM4
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $170
- $100
- HearWiki score
- 84
- 72
- Released
- 2025
- 2025
- Availability
- Sold new
- Sold new
- Driver
- 1DD + 2BA tribrid
- 2× 10 mm dynamic
- Driver type
- tribrid
- dynamic
- Driver configuration
- 1DD + 2BA
- -
- Driver size
- -
- 10 mm
- Drivers per side
- 3
- 2
- Impedance
- 20 Ω
- 21 Ω
- Sensitivity
- 105 dB/mW
- -
- Active noise cancelling
- No
- -
- Weight
- -
- 7 g
- Connector
- -
- 2-pin 0.78 mm
What reviewers said
CrinEar Daybreak
The CrinEar Daybreak is a wired tribrid IEM that delivers a well-balanced, reference-style sound with a focus on accurate reproduction and natural mids. It performs admirably across various genres, though its stock cable and occasionally shouty upper mids may not suit everyone.
- Pro:Balanced, neutral-leaning tuning
- Pro:Natural and lifelike midrange
- Pro:Strong bass texture with sub-bass emphasis
- Con:Stock cable feels cheap
- Con:Can sound shouty on certain tracks
- Con:Not the most exciting or dynamic presentation
Fosi Audio IM4
The Fosi Audio IM4 is a wired, dual-dynamic-driver IEM that delivers a spacious, engaging sound with a focus on upper mids and treble detail. It suits acoustic and vocal-centric listening, though its tuning is more niche than universally neutral. With solid build quality, light weight, and strong value, it's a compelling budget option for those seeking a lively, open presentation.
- Pro:Lightweight and comfortable fit
- Pro:Spacious, open soundstage with good separation
- Pro:Strong detail retrieval and resolution for the price
- Con:Tuning is uneven for all-purpose use
- Con:Metallic cymbal timbre at times
- Con:Lower mids can sound slightly imbalanced
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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