Side by side comparison and review of Koss UR 23i and Bang & Olufsen Beoplay H9 3rd Generation. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Koss UR 23i | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | |
|---|---|---|---|
| Height | - | 20 cm | |
| Width | - | 19.7 cm | |
| Depth | - | 5.2 cm | |
| Weight | - | 285 g | |
| Colour | White | Black | Chestnut | |
| Body Material | - | Stainless steel, aluminium | |
| Earpad Material | - | Leather | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Koss UR 23i | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wired | Wireless, wired | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.2 | |
| Bluetooth Audio Codec | - | SBC, AAC, apt-X LL | |
| Active Noise Cancelling | - | Yes | Bang & Olufsen Beoplay H9 3rd Generation are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Signature Sound | |
| Frequency Response | 20 - 20000 Hz | 20 - 22000 Hz | Bang & Olufsen Beoplay H9 3rd Generation offer a larger frequency range than Koss UR 23i. |
| Sensitivity | 94 dB | 93 dB | Koss UR 23i have higher sensitivity than Bang & Olufsen Beoplay H9 3rd Generation. |
| Impedance | 34 Ohm | 24 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | Koss UR 23i | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - |
| REMOTE CONTROL | Koss UR 23i | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Controls | - | Volume, on/off, answer/end, play/pause, next/previous track, pair mode, voice assistant, noise-cancellation suspend button, ANC on/off |
|---|
| CABLE | Koss UR 23i | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - detachable - 1.2 m USB-C charge cable - detachable - 1.25 m |
|
|---|---|---|---|
| Cable Length | - | 1.2 m | |
| Detachable Cable | - | Yes |
| FEATURES | Koss UR 23i | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Features | - | Touch control | |
|---|---|---|---|
| Internet of Things (IoT) Compatible | - | Yes | |
| Intelligent Assistant | - | Google Assistant |
| BATTERY AND CHARGING | Koss UR 23i | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 1110 mAh | |
| Battery Life | - | 33 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling ON / Bluetooth): up to 25 hours Continuous playback (noise cancelling OFF / Bluetooth): up to 32 hours Continuous playback (noise cancelling ON / cable connection): up to 33 hours |
|
| Charging Time | - | 3 hour(s) |
| CONNECTIONS | Koss UR 23i | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Koss UR 23i | Bang & Olufsen Beoplay H9 3rd Generation |
|---|
| Included Accessories | - | Carrying pouch, airplane adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | - |
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