FiiO JN3 vs Sennheiser HD 400: which should you buy?
Specs, scores and condensed review verdicts for the FiiO JN3 vs Sennheiser HD 400, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Score breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Sennheiser HD 400 leads on 3 of 4 measures.
- FiiO JN3
- Sennheiser HD 400
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?
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.
- JN32026
- HD 400Year unknown
Level on: USB-C.
Specifications
- Type
- Over-Ear
- Over-Ear
- Price (USD)
- $39
- $77
- HearWiki score
- Not scored
- 82
- Released
- 2026
- -
- Driver
- -
- 40 mm dynamic
- Driver type
- -
- dynamic
- Driver size
- -
- 40 mm
- Drivers per side
- -
- 1
- Frequency response
- -
- 18 Hz - 20 kHz
- Impedance
- -
- 120 Ω
- Bluetooth
- 5.3
- -
- Multipoint pairing
- -
- No
- Wireless charging
- -
- No
- Active noise cancelling
- Yes
- No
- Transparency mode
- Yes
- -
- Controls
- -
- buttons
- Voice assistant
- Yes
- -
- Weight
- -
- 240 g
- Water resistance
- -
- none
- Foldable
- Yes
- -
- USB-C
- Yes
- Yes
- Connector
- USB-C
- -
- Microphones
- 1
- 1
- Microphone type
- MEMS
- -
- Call noise reduction
- Yes
- -
What reviewers said
FiiO JN3
No summary yet - we haven't aggregated enough reviews.
Sennheiser HD 400
These over-ear Sennheiser headphones are built around a neutral, open-back design aimed at studio work, delivering a wide soundstage and detailed, transparent audio for critical listening. They are lightweight and comfortable for long sessions, with a high-impedance driver setup that helps maintain low distortion, though they lack isolation and come without a carry case. Wired connectivity via USB-C and detachable cables adds versatility, but the open-back nature means sound leaks both ways.
- Pro:Accurate, transparent sound with wide soundstage
- Pro:Lightweight and comfortable for extended wear
- Pro:Detachable cables and USB-C connectivity
- Con:No included carry case or spare ear pads
- Con:Open-back design leaks sound and offers no isolation
- Con:High impedance may require a dedicated amplifier for best results
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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