Over-Ear
Bluedio T3
Not yet scored
$50
Full review dataBluedio T3 vs Sennheiser HD 400: which should you buy?
Specs, scores and condensed review verdicts for the Bluedio T3 vs Sennheiser HD 400, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Over-Ear
Sennheiser HD 400
82Great
$77
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Bluedio T3
No sub-scores yet - not enough rated reviews.
Sennheiser HD 400
Sound8.5
Value8.0
Specifications
| Spec | Bluedio T3 | Sennheiser HD 400 |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $50 | $77 |
| HearWiki score | Not scored | 82 / 100 · Great |
| Released | 2021 | - |
| Audio | ||
| Driver | dynamic | Sennheiser dynamic drivers |
| Driver size | 57 mm | 40 mm |
| Drivers per side | 2 | 1 |
| Frequency response | 15Hz-25kHz | 18Hz-20kHz |
| Impedance | 16 Ω | 120 Ω |
| Sensitivity | 116 dB/mW | - |
| Wireless | ||
| Bluetooth | 4.1 | - |
| Codecs | SBC | - |
| Multipoint pairing | - | No |
| Wireless range | 10 m | - |
| Battery | ||
| Battery life | 20 h | - |
| Full charge time | 120 min | - |
| Wireless charging | - | No |
| Features | ||
| Active noise cancelling | - | No |
| Controls | - | buttons |
| Design | ||
| Weight | 388 g | 240 g |
| Water resistance | none | none |
| Foldable | Yes | - |
| Detachable cable | Yes | - |
| USB-C | No | Yes |
| Calls | ||
| Microphones | - | 1 |
What reviewers said
Bluedio T3
The Bluedio T3 is an affordable wireless over-ear headphone that prioritizes battery life and portability over advanced features. It offers a long 20-hour playtime, a foldable design for easy storage, and a detachable cable for wired use, but relies on older Bluetooth 4.1 and SBC-only codec support. Its large 57mm drivers aim to deliver a powerful sound, though the 388-gram weight may be noticeable during extended listening sessions.
- Pro:Long battery life of 20 hours
- Pro:Foldable design for easy transport
- Pro:Detachable cable adds wired flexibility
- Con:Heavy at 388 grams
- Con:No USB-C charging
- Con:Only supports SBC codec
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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