In depth comparison and review of KEF Porsche Design Space One and Poly Voyager 4220 (Office Series). 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 | KEF Porsche Design Space One | Poly Voyager 4220 (Office Series) |
|---|
| Product Type | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | Headset - Bluetooth - wireless - USB-C | |
|---|---|---|---|
| Series | - | Office Series | |
| Height | 8.2 cm | - | |
| Width | 19.5 cm | - | |
| Depth | 17 cm | - | |
| Weight | 330 g | 150 g | Poly Voyager 4220 (Office Series) are lighter than KEF Porsche Design Space One headphones. |
| Colour | Titanium | - | |
| Recommended Use | Portable electronics | - | |
| Bluetooth Range (Operating Distance) | - | 91 m |
| SOUND QUALITY | KEF Porsche Design Space One | Poly Voyager 4220 (Office Series) |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless, wired | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.0 | Poly Voyager 4220 (Office Series) have a more advanced version of Bluetooth than KEF Porsche Design Space One. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC | |
| Active Noise Cancelling | Yes | - | KEF Porsche Design Space One are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | 12 mW | - | |
| Sensitivity | 94 dB | - | |
| Impedance | 16 Ohm | 32 Ohm | |
| Diaphragm | 40 mm | 32 mm | KEF Porsche Design Space One have a thicker diaphragm than Poly Voyager 4220 (Office Series). |
| Magnet Material | Neodymium | - | |
| Features | Voice control, Bluetooth aptX technology | SoundGuard DIGITAL Technology |
| MICROPHONE | KEF Porsche Design Space One | Poly Voyager 4220 (Office Series) |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | Uni-directional | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | KEF Porsche Design Space One | Poly Voyager 4220 (Office Series) |
|---|
| Controls | - | Mute, volume, answer/end, next/previous track, redial |
|---|
| CABLE | KEF Porsche Design Space One | Poly Voyager 4220 (Office Series) |
|---|
| Cable Type | Headphones cable - detachable | - | |
|---|---|---|---|
| Detachable Cable | Yes | - |
| FEATURES | KEF Porsche Design Space One | Poly Voyager 4220 (Office Series) |
|---|
| Features | - | Voice alerts |
|---|
| BATTERY AND CHARGING | KEF Porsche Design Space One | Poly Voyager 4220 (Office Series) |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | Headset battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 850 mAh | 360 mAh | KEF Porsche Design Space One have a higher battery capacity than Poly Voyager 4220 (Office Series). |
| Battery Life | 110 hour(s) | 12 hour(s) | KEF Porsche Design Space One lasts longer on a single charge than the Poly Voyager 4220 (Office Series). |
| Battery Life Details | - | Continuous playback: up to 15 hours Continuous talk: up to 12 hours |
|
| Standby Time | - | 312 hours | |
| Charging Time | - | 1.5 hour(s) |
| CONNECTIONS | KEF Porsche Design Space One | Poly Voyager 4220 (Office Series) |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | USB (24 pin USB-C) |
|---|
| OTHERS | KEF Porsche Design Space One | Poly Voyager 4220 (Office Series) |
|---|
| Software Certification | - | Certified for Microsoft Teams |
|---|
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