Side by side comparison and review of Koss UR 23i and Bang & Olufsen Beoplay H4 2nd 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 H4 2nd Generation |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | - | 22.3 cm | |
| Width | - | 18 cm | |
| Depth | - | 5.2 cm | |
| Weight | - | 244 g | |
| Colour | White | Black | Matte black | Limestone | |
| Body Material | - | Stainless steel, aluminium, polymer | |
| Earpad Material | - | Leather | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Koss UR 23i | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.2 | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 94 dB | 91 dB/mW | Koss UR 23i have higher sensitivity than Bang & Olufsen Beoplay H4 2nd Generation. |
| Impedance | 34 Ohm | 20 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | Koss UR 23i | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional |
| REMOTE CONTROL | Koss UR 23i | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Controls | - | Volume control, answer/end, play/pause, next/previous track, pair mode |
|---|
| CABLE | Koss UR 23i | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - detachable - braided fabric - 1.25 m Micro-USB charge cable - detachable - 25 cm |
|
|---|---|---|---|
| Cable Length | - | 1.25 m |
| BATTERY AND CHARGING | Koss UR 23i | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 600 mAh | |
| Battery Life | - | 19 hour(s) | |
| Charging Time | - | 2.5 hour(s) |
| CONNECTIONS | Koss UR 23i | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone 3.5mm) Power input (5 pin Micro-USB Type B) |
|---|
| OTHERS | Koss UR 23i | Bang & Olufsen Beoplay H4 2nd Generation |
|---|
| Service & Support | Limited warranty - lifetime | Limited warranty - 2 years |
|---|
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