In depth comparison and review of Koss UR 23i and Bang & Olufsen Beoplay H4. 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 | Koss UR 23i | Bang & Olufsen Beoplay H4 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless - 3.5 mm jack | |
|---|---|---|---|
| Height | - | 22 cm | |
| Width | - | 19.4 cm | |
| Depth | - | 5 cm | |
| Weight | - | 235 g | |
| Colour | White | Black | Black | Charcoal grey | Sandstone | Tangerine | Violet | |
| Body Material | - | Stainless steel, aluminium | |
| Earpad Material | - | Leather | |
| Headband Material | - | Leather | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Koss UR 23i | Bang & Olufsen Beoplay H4 |
|---|
| 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 - 22000 Hz | Bang & Olufsen Beoplay H4 offer a larger frequency range than Koss UR 23i. |
| Sensitivity | 94 dB | 91 dB/mW | Koss UR 23i have higher sensitivity than Bang & Olufsen Beoplay H4. |
| Impedance | 34 Ohm | 20 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | Koss UR 23i | Bang & Olufsen Beoplay H4 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Audio Input Details | - | Omni-directional |
| REMOTE CONTROL | Koss UR 23i | Bang & Olufsen Beoplay H4 |
|---|
| Controls | - | Volume, answer/end, play/pause, next/previous track, pair mode |
|---|
| CABLE | Koss UR 23i | Bang & Olufsen Beoplay H4 |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - braided fabric - 1.25 m | |
|---|---|---|---|
| Cable Length | - | 1.25 m |
| BATTERY AND CHARGING | Koss UR 23i | Bang & Olufsen Beoplay H4 |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 600 mAh | |
| Battery Life | - | 19 hour(s) | |
| Charging Time | - | 2.5 hour(s) |
| WIRELESS LINK | Koss UR 23i | Bang & Olufsen Beoplay H4 |
|---|
| Transmission Range | - | 10 m |
|---|
| CONNECTIONS | Koss UR 23i | Bang & Olufsen Beoplay H4 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone 3.5mm) |
|---|
| OTHERS | Koss UR 23i | Bang & Olufsen Beoplay H4 |
|---|
| Included Accessories | - | USB charging cable (25cm) | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | Limited warranty - 2 years |
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