Wired IEMs
KZ Castor
72Good
$15
Full review dataKZ Castor vs TRUTHEAR HEXA: which should you buy?
On aggregated review scores the TRUTHEAR HEXA comes out ahead with an HearWiki score of 78. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: TRUTHEAR HEXA - Great overall at around $25.
Wired IEMs
TRUTHEAR HEXA
78Great
$25
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
KZ Castor
Sound7.0
Value8.0
TRUTHEAR HEXA
Sound7.8
Value8.2
Specifications
| Spec | KZ Castor | TRUTHEAR HEXA |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $15 | $25 |
| HearWiki score | 72 / 100 · Good | 78 / 100 · Great |
| Released | 2023 | 2022 |
| Audio | ||
| Driver | Dual dynamic drivers (8mm + 10mm dual magnetic) | 1DD+3BA Hybrid |
| Driver size | 10 mm | 10 mm |
| Drivers per side | 2 | 4 |
| Frequency response | 20Hz-40kHz | 20Hz-20kHz |
| Impedance | 31 Ω | 20.5 Ω |
| Sensitivity | 105 dB/mW | 120 dB/mW |
| Wireless | ||
| Bluetooth | none | - |
| Multipoint pairing | No | No |
| Battery | ||
| Wireless charging | No | - |
| Features | ||
| Active noise cancelling | No | No |
| ANC type | none | - |
| Transparency mode | No | - |
| Companion app | No | - |
| Custom EQ | Yes | - |
| Wear detection | No | - |
| Controls | none | - |
| Design | ||
| Weight | - | 6 g |
| Detachable cable | Yes | Yes |
| USB-C | No | No |
What reviewers said
KZ Castor
The KZ Castor is a budget-friendly in-ear monitor with dual dynamic drivers and adjustable tuning switches, offering a fun, energetic sound that punches above its price. It's particularly well-suited for bass lovers and gamers, though its technical performance and accessory package are only average for the price.
- Pro:Adjustable tuning switches for sound customization
- Pro:Strong bass response and energetic sound signature
- Pro:Good build quality and comfortable fit for the price
- Con:Average technical performance and detail retrieval
- Con:Stock cable and accessories feel cheap
- Con:Slight treble sibilance and artificial vocals at times
TRUTHEAR HEXA
The TRUTHEAR HEXA is a hybrid in-ear monitor that combines a single 10mm dynamic driver with three balanced armatures to deliver a balanced, neutral-leaning sound with a slight warmth. Priced around $90, it offers a comfortable fit, solid build, and good passive isolation, making it a strong value pick for critical listening, though its bass response is somewhat restrained and the soundstage feels intimate rather than expansive. Its technical performance is competent for the price, but it's not particularly suited for gaming or high-energy activities.
- Pro:Comfortable and lightweight design
- Pro:Excellent passive noise isolation
- Pro:Balanced, neutral tuning with a touch of warmth
- Con:Bass is somewhat restrained
- Con:Soundstage is fairly intimate
- Con:Not ideal for gaming due to mediocre imaging
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
Compare something else
Swap either side out, or start again from the picker.