Detailed comparison and review of Sennheiser HD 820 and Bang & Olufsen Beoplay H9i. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Sennheiser HD 820 | Bang & Olufsen Beoplay H9i |
|---|
| Product Type | Headphones - wired | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | - | 20 cm | |
| Width | - | 19.5 cm | |
| Depth | - | 5.2 cm | |
| Weight | 360 g | 285 g | Bang & Olufsen Beoplay H9i are lighter than Sennheiser HD 820 headphones. |
| Colour | - | Natural | Black | Pine | |
| Body Material | - | Fabric, rubber, anodised aluminium, polymer | |
| Earpad Material | Microfibre | Leather, memory foam | |
| Headband Material | - | Leather | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | Sennheiser HD 820 | Bang & Olufsen Beoplay H9i |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | Closed | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.2 | |
| Bluetooth Audio Codec | - | AAC | |
| Active Noise Cancelling | - | Yes | Bang & Olufsen Beoplay H9i are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid ANC | |
| Noise Isolating | Yes | - | Sennheiser HD 820 are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 6 - 48000 Hz | 20 - 22000 Hz | Sennheiser HD 820 offer a larger frequency range than Bang & Olufsen Beoplay H9i. |
| Sensitivity | 103 dB/Vrms | 95 dB/mW | Sennheiser HD 820 have higher sensitivity than Bang & Olufsen Beoplay H9i. |
| Impedance | 300 Ohm | 24 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | Sennheiser HD 820 | Bang & Olufsen Beoplay H9i |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Microphones Included | - | 2 |
| REMOTE CONTROL | Sennheiser HD 820 | Bang & Olufsen Beoplay H9i |
|---|
| Controls | - | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode, noise-cancellation suspend button, audio transparency |
|---|
| CABLE | Sennheiser HD 820 | Bang & Olufsen Beoplay H9i |
|---|
| Cable Type | Headphones cable - OFC - 3 m | Headphones cable - detachable - 1.2 m USB to USB-C cable - 1.25 m |
|
|---|---|---|---|
| Cable Length | 3 m | 1.2 m | |
| Plated Connector | Gold | - |
| FEATURES | Sennheiser HD 820 | Bang & Olufsen Beoplay H9i |
|---|
| Sensors | - | Proximity sensor |
|---|
| BATTERY AND CHARGING | Sennheiser HD 820 | Bang & Olufsen Beoplay H9i |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 770 mAh | |
| Battery Life | - | 24 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling ON / Bluetooth): up to 18 hours Continuous playback (noise cancelling OFF): up to 23 hours Continuous playback (noise cancelling ON / cable connection): up to 24 hours |
|
| Charging Time | - | 2.5 hour(s) |
| CONNECTIONS | Sennheiser HD 820 | Bang & Olufsen Beoplay H9i |
|---|
| Connector Type | Headphones (phone stereo 6.3 mm) | Headphones (mini-phone stereo 3.5 mm 4-pole) |
|---|
| OTHERS | Sennheiser HD 820 | Bang & Olufsen Beoplay H9i |
|---|
| Included Accessories | USB flash drive, microfibre cleaning cloth, 4.4 mm Pentaconn stereo jack plug, XLR-4 connector | Carrying pouch, airplane adapter | |
|---|---|---|---|
| Service & Support | - | Limited warranty - parts and labour - 2 years |
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