
OneOdio Pro-50 vs Sennheiser HD 400: which should you buy?
On aggregated review scores the Sennheiser HD 400 comes out ahead with an HearWiki score of 82. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Score breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Specifications
| Spec | OneOdio Pro-50 | Sennheiser HD 400 |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $44 | $77 |
| HearWiki score | 62 / 100 · Average | 82 / 100 · Great |
| Released | 2020 | - |
| Audio | ||
| Driver | 50mm | Sennheiser dynamic drivers |
| Driver size | 50 mm | 40 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 20Hz-40kHz | 18Hz-20kHz |
| Impedance | 32 Ω | 120 Ω |
| Sensitivity | 110 dB/mW | - |
| Wireless | ||
| Bluetooth | none | - |
| Multipoint pairing | No | No |
| Battery | ||
| Wireless charging | No | No |
| Features | ||
| Active noise cancelling | No | No |
| ANC type | none | - |
| Transparency mode | No | - |
| Companion app | No | - |
| Custom EQ | No | - |
| Wear detection | No | - |
| Controls | buttons | buttons |
| Design | ||
| Weight | 263 g | 240 g |
| Water resistance | none | none |
| Foldable | Yes | - |
| Detachable cable | Yes | - |
| USB-C | No | Yes |
| Calls | ||
| Microphones | 1 | 1 |
What reviewers said
OneOdio Pro-50
The OneOdio Pro-50 is a budget-friendly, wired over-ear headphone that prioritizes portability and comfort, featuring a foldable design and flexible cabling. Its sound signature is distinctly V-shaped, delivering powerful, punchy bass and bright treble that makes for an exciting listen, though it may not satisfy those seeking a neutral or balanced profile. At its price point, it offers solid value for casual listeners who enjoy bass-heavy music.
- Pro:Very affordable for the feature set
- Pro:Comfortable for extended sessions
- Pro:Foldable design adds portability
- Con:Sound is far from neutral or balanced
- Con:Treble can become sharp or fatiguing
- Con:Lacks wireless or USB-C connectivity
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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