Over-Ear
Sennheiser HD 400
82Great
$77
Full review dataSennheiser HD 400 vs Sennheiser MOMENTUM Free Special Edition: 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.
Our pick: Sennheiser HD 400 - Great overall at around $77.
Over-Ear
Sennheiser MOMENTUM Free Special Edition
72Good
$60
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Sennheiser HD 400
Sound8.5
Value8.0
Sennheiser MOMENTUM Free Special Edition
Sound7.5
Battery5.5
Calls5.0
Value6.5
Specifications
| Spec | Sennheiser HD 400 | Sennheiser MOMENTUM Free Special Edition |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $77 | $60 |
| HearWiki score | 82 / 100 · Great | 72 / 100 · Good |
| Released | - | 2018 |
| Audio | ||
| Driver | Sennheiser dynamic drivers | dynamic |
| Driver size | 40 mm | - |
| Drivers per side | 1 | 2 |
| Frequency response | 18Hz-20kHz | 15Hz-22kHz |
| Impedance | 120 Ω | 480 Ω |
| Sensitivity | - | 118 dB/mW |
| Wireless | ||
| Bluetooth | - | 4.2 |
| Bluetooth version | - | 4.2 |
| Codecs | - | SBC, AAC, aptX, aptX Low Latency |
| Multipoint pairing | No | Yes |
| Wireless range | - | 10 m |
| Battery | ||
| Full charge time | - | 90 min |
| 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 | 240 g | 17 g |
| Water resistance | none | none |
| USB-C | Yes | No |
| Calls | ||
| Microphones | 1 | 1 |
| Call noise reduction | - | HD Voice |
What reviewers said
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
Sennheiser MOMENTUM Free Special Edition
This compact wireless in-ear set prioritizes audio performance, delivering a lively and clear sound signature with solid bass response. While its battery life is modest and the design is straightforward, it offers reliable wireless connectivity with aptX support and multipoint pairing. It's a good pick for those who value sound quality in a lightweight, portable package.
- Pro:Lively, detailed sound quality
- Pro:Lightweight and portable design
- Pro:Reliable Bluetooth with aptX support
- Con:Battery life is only around six hours
- Con:Call quality can be inconsistent
- Con:Comfort may not suit all ears
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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