In depth comparison and review of Sennheiser HD 4.40 and Bang & Olufsen Beoplay H9. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Sennheiser HD 4.40 | Bang & Olufsen Beoplay H9 |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | - | 22.5 cm | |
| Width | - | 19.7 cm | |
| Depth | - | 4 cm | |
| Weight | - | 285 g | |
| Colour | - | Argilla grey | Black | |
| Body Material | - | Anodised aluminium | |
| Earpad Material | - | Leather | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Sennheiser HD 4.40 | Bang & Olufsen Beoplay H9 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.0 | Bluetooth 4.2 | Bang & Olufsen Beoplay H9 have a more advanced version of Bluetooth than Sennheiser HD 4.40. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | AAC, aptX | |
| Active Noise Cancelling | - | Yes | Bang & Olufsen Beoplay H9 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Signature Sound | |
| Frequency Response | 18 - 22000 Hz | 20 - 22000 Hz | Sennheiser HD 4.40 offer a larger frequency range than Bang & Olufsen Beoplay H9. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 113 dB | 93 dB/mW | Sennheiser HD 4.40 have higher sensitivity than Bang & Olufsen Beoplay H9. |
| Impedance | 18 Ohm | 20 Ohm | |
| Diaphragm | - | 40 mm | |
| Features | - | Bluetooth aptX technology |
| MICROPHONE | Sennheiser HD 4.40 | Bang & Olufsen Beoplay H9 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | Omni-directional | Omni-directional | |
| Frequency Response | 100 - 10000 Hz | - | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Sennheiser HD 4.40 | Bang & Olufsen Beoplay H9 |
|---|
| Controls | - | Volume, answer/end, play/pause, next/previous track, noise-cancellation suspend button |
|---|
| CABLE | Sennheiser HD 4.40 | Bang & Olufsen Beoplay H9 |
|---|
| Cable Type | - | Headphones cable - detachable - 1.2 m |
|---|
| BATTERY AND CHARGING | Sennheiser HD 4.40 | Bang & Olufsen Beoplay H9 |
|---|
| Battery Type | Headphone battery lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 770 mAh | |
| Battery Life | - | 21 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling ON / Bluetooth): up to 14 hours Continuous playback (noise cancelling OFF): up to 16 hours Continuous playback (noise cancelling ON / cable connection): up to 21 hours |
|
| Charging Time | - | 2.5 hour(s) |
| CONNECTIONS | Sennheiser HD 4.40 | Bang & Olufsen Beoplay H9 |
|---|
| Connector Type | - | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Sennheiser HD 4.40 | Bang & Olufsen Beoplay H9 |
|---|
| Included Accessories | - | Carrying pouch, airplane adapter, micro-USB charging cable (30cm) | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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