Wired IEMs
KZ ZEX
66Good
$22
Full review dataKZ ZEX vs Sivga SM100: which should you buy?
On aggregated review scores the Sivga SM100 comes out ahead with an HearWiki score of 78. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Sivga SM100 - Great overall at around $35.
Wired IEMs
Sivga SM100
78Great
$35
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
KZ ZEX
Sound6.5
Value7.0
Sivga SM100
Sound8.0
Value8.5
Specifications
| Spec | KZ ZEX | Sivga SM100 |
|---|---|---|
| Type | Wired IEMs | Wired IEMs |
| Price (USD) | $22 | $35 |
| HearWiki score | 66 / 100 · Good | 78 / 100 · Great |
| Released | 2021 | 2026 |
| Audio | ||
| Driver | 1 dynamic + 1 electret/magnetostatic hybrid | single dynamic driver, dual-chamber PU + sapphire-like ceramic composite diaphragm |
| Driver size | 10 mm | 10 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 20Hz-40kHz | 20Hz-40kHz |
| Impedance | 25 Ω | 27 Ω |
| Sensitivity | 103 dB/mW | 107 dB/mW |
| Wireless | ||
| Bluetooth | - | none |
| Multipoint pairing | No | No |
| Features | ||
| Active noise cancelling | No | - |
| Controls | buttons | - |
| Design | ||
| Weight | - | 7 g |
| Water resistance | - | none |
| Detachable cable | Yes | Yes |
| USB-C | No | No |
| Calls | ||
| Microphones | - | 1 |
What reviewers said
KZ ZEX
The KZ ZEX is a budget-friendly hybrid IEM that pairs a dynamic driver with an electret driver for a warm, easygoing sound. It offers solid sub-bass punch and a non-fatiguing tuning that suits vocals, though its technical performance and treble energy are modest. With a comfortable fit and detachable cable, it's a good value pick for casual listeners rather than detail chasers.
- Pro:Strong sub-bass punch
- Pro:Easy to drive from any source
- Pro:Comfortable, secure fit
- Con:Bass can bleed into mids
- Con:Recessed lower mids at times
- Con:Limited treble sparkle and detail
Sivga SM100
The Sivga SM100 is a budget-friendly single-dynamic-driver IEM that punches above its price class with an open, cohesive sound signature. It delivers impressive detail retrieval and well-controlled bass for the cost, though it does compromise on sub-bass depth and top-end airiness. Overall, it's a solid pick for listeners who value clarity and balance over extreme extension.
- Pro:Excellent clarity and detail for the price
- Pro:Balanced, cohesive tuning with controlled bass
- Pro:Lightweight and comfortable with detachable cable
- Con:Sub-bass extension is limited
- Con:Treble rolls off noticeably in the upper frequencies
- Con:No wireless or multipoint connectivity options
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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