Sennheiser HD 400S
32mm dynamic drivers and 18Ω impedance deliver Sennheiser's clear mids, detailed highs, and controlled bass, with closed-back passive noise isolation. An inline smart remote handles calls and track control, and the 217-gram foldable frame aids portability. Best for budget-focused commuters who need a lightweight wired headset for music and hands-free calls, not critical monitoring.
About This Headphones
32mm dynamic drivers and 18Ω impedance deliver Sennheiser's clear mids, detailed highs, and controlled bass, with closed-back passive noise isolation. An inline smart remote handles calls and track control, and the 217-gram foldable frame aids portability. Best for budget-focused commuters who need a lightweight wired headset for music and hands-free calls, not critical monitoring.
- Form factor over-ear
- Driver type dynamic
- Driver size 32 mm
- Impedance ohms 18
- Open closed back closed
Overview
Performance
Pros & Cons
Pros
Cons
- Below average connectivity (14th percentile) 14th
- Below average build (35th percentile) 35th
Specifications
Full Specifications
Design
| Form Factor | over-ear |
| Open/Closed | closed |
| Foldable | Yes |
| Weight | 0.2 kg / 0.5 lbs |
Audio
| Driver Type | dynamic |
| Driver Size | 32 |
| Impedance | 18 |
| Codecs | Sennheiser HD 400S Closed-Back Over-Ear Wired Headphones – Lightweight Foldable Design, Inline Smart Remote, Balanced Sennheiser Sound, Comfortable Noise-Reducing Fit |
Noise Control
| Transparency | Yes |
Connectivity
| Wireless | No |
| Wired Connector | 3.5mm |
Microphone
| Microphone | Yes |
| Boom Mic | No |
vs Competition
| Spec | Sennheiser HD 400S | Sony WH-1000XM6 WH-1000XM6 | Bowers & Wilkins Px8 S2 Px8 S2 | Bose QuietComfort Ultra 2nd Gen | Technics EAH-A800 EAH-A800 | JBL Live 770NC |
|---|---|---|---|---|---|---|
| Form Factor | over-ear | over-ear | over-ear | over-ear | over-ear | over-ear |
| Driver Type | dynamic | dynamic | dynamic | Dynamic | PEEK/Polyurethane 3-Layer Diaphragm | Dynamic |
| Driver Size (mm) | 32 | 30 | 40 | - | 40 | 40 |
| Impedance Ohms | 18 | 48 | - | 32 | 34 | 32 |
| Wireless | false | true | true | true | true | true |
| Active Noise Cancellation | - | true | true | true | true | true |
| Open Closed Back | closed | closed | closed | closed | closed | closed |
| Bluetooth Version | - | 5.3 | 5.3 | 5.4 | 5.2 | 5.3 |
| Battery Life Hours | - | 30 | 30 | 30 | 50 | 65 |
| Compare | Compare | Compare | Compare | Compare |
| Product | Anc | Mic | Build | Sound | Battery | Comfort | User Sentiment | Connectivity | Social Proof |
|---|---|---|---|---|---|---|---|---|---|
| Sennheiser HD 400S | 63.8 | 44.5 | 34.6 | 51.2 | 44.4 | 51 | 51.6 | 14.1 | 62.7 |
| Sony WH-1000XM6 WH-1000XM6 Compare | 97.6 | 91.4 | 92.1 | 95.2 | 72.6 | 79.7 | 0 | 99.7 | 93.5 |
| Bowers & Wilkins Px8 S2 Px8 S2 Compare | 97.6 | 99.4 | 95.8 | 99.3 | 72.6 | 51 | 87.4 | 97.5 | 98.8 |
| Bose QuietComfort Ultra 2nd Gen Compare | 92.4 | 78.8 | 97.2 | 48.2 | 72.6 | 86.8 | 0 | 99.7 | 98.8 |
| Technics EAH-A800 EAH-A800 Compare | 92.4 | 98.4 | 77.1 | 96.9 | 83.9 | 51 | 20 | 93.1 | 98.8 |
| JBL Live 770NC Compare | 97.6 | 78.8 | 97.2 | 85.1 | 91.7 | 51 | 70.2 | 100 | 98.8 |
Usage Scores
A full written review is coming soon. The specs, scores, prices and charts above are always up to date.
