In depth comparison and review of Poly Voyager 4220 Office (UC Series) and Sony WH-CH520. 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 | Poly Voyager 4220 Office (UC Series) | Sony WH-CH520 |
|---|
| Product Type | Headset - Bluetooth - wireless - USB-C | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Series | UC Series | - | |
| Weight | 150 g | 147 g | Sony WH-CH520 are lighter than Poly Voyager 4220 Office (UC Series) headphones. |
| Colour | - | Beige | Black | Blue | White | |
| Body Material | - | Recycled plastic | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | 30 m | 10 m | Poly Voyager 4220 Office (UC Series) have a greater operating distance than Sony WH-CH520. |
| SOUND QUALITY | Poly Voyager 4220 Office (UC Series) | Sony WH-CH520 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Ear Cups Type | - | Closed | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.2 | Sony WH-CH520 have a more advanced version of Bluetooth than Poly Voyager 4220 Office (UC Series). |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Digital Sound Enhancement Engine (DSEE), 360 Reality Audio | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 94 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 32 mm | 30 mm | Poly Voyager 4220 Office (UC Series) have a thicker diaphragm than Sony WH-CH520. |
| Simultaneously Connectable Devices Qty (Multipoint) | - | 2 | Sony WH-CH520 have the ability to connect to multiple devices simultaneously. |
| Features | SoundGuard Technology | MultiPoint Technology, Google Fast Pair, Microsoft Swift Pair |
| MICROPHONE | Poly Voyager 4220 Office (UC Series) | Sony WH-CH520 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Microphone Operation Mode | Uni-directional | - | |
| Microphones Included | 2 | - |
| REMOTE CONTROL | Poly Voyager 4220 Office (UC Series) | Sony WH-CH520 |
|---|
| Controls | Mute, volume, answer/end, play/pause, next/previous track | Volume, play/pause, skip track |
|---|
| CABLE | Poly Voyager 4220 Office (UC Series) | Sony WH-CH520 |
|---|
| Cable Type | - | USB-C charge cable |
|---|
| FEATURES | Poly Voyager 4220 Office (UC Series) | Sony WH-CH520 |
|---|
| Features | Voice alerts | - | |
|---|---|---|---|
| Internet of Things (IoT) Compatible | - | Yes | |
| Voice Control | - | Direct | |
| Intelligent Assistant | - | Siri, Google Assistant |
| BATTERY AND CHARGING | Poly Voyager 4220 Office (UC Series) | Sony WH-CH520 |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 360 mAh | - | |
| Battery Life | 12 hour(s) | 50 hour(s) | Sony WH-CH520 lasts longer on a single charge than the Poly Voyager 4220 Office (UC Series). |
| Battery Life Details | Continuous playback: up to 15 hours Continuous talk: up to 12 hours |
Continuous playback: up to 50 hours Continuous talk: up to 40 hours |
|
| Standby Time | 312 hours | 200 hours | Poly Voyager 4220 Office (UC Series) have longer standby time than Sony WH-CH520. |
| Charging Time | 1.5 hour(s) | 3 hour(s) | Poly Voyager 4220 Office (UC Series) recharge faster than Poly Voyager 4220 Office (UC Series). |
| CONNECTIONS | Poly Voyager 4220 Office (UC Series) | Sony WH-CH520 |
|---|
| Connector Type | - | USB (power only) (USB Type-C) Bluetooth |
|---|
| OTHERS | Poly Voyager 4220 Office (UC Series) | Sony WH-CH520 |
|---|
| Included Accessories | Wireless headset system base, Bluetooth USB-C adapter | - |
|---|
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