In depth comparison and review of Poly Voyager 4220 USB-C and Bowers & Wilkins PX7. 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 USB-C | Bowers & Wilkins PX7 |
|---|
| Product Type | Headset - Bluetooth - wireless - USB-C | Headphones - Bluetooth - wireless, wired - 3.5 mm jack, USB-C | |
|---|---|---|---|
| Series | UC Series | - | |
| Height | - | 22 cm | |
| Width | - | 17.5 cm | |
| Depth | - | 8 cm | |
| Weight | 150 g | 304 g | Poly Voyager 4220 USB-C are lighter than Poly Voyager 4220 USB-C headphones. |
| Colour | - | Carbon | Space grey | Silver | |
| Earpad Material | - | Soft leather, memory foam | |
| Headband Material | - | Carbon fibre | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | 30 m | - |
| SOUND QUALITY | Poly Voyager 4220 USB-C | Bowers & Wilkins PX7 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Adjustable Headband | - | Yes | |
| Foldable | - | Yes | Bowers & Wilkins PX7 can be folded. |
| Connectivity Technology | Wireless | Wireless, wired | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 | Both headphones have the same Bluetooth version. |
| 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), Generic Access Profile (GAP), Service Discovery Application Profile (SDAP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP) | |
| Bluetooth Audio Codec | SBC, mSBC | SBC, AAC, aptX, aptX HD | |
| Active Noise Cancelling | - | Yes | Bowers & Wilkins PX7 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Adaptive Noise Cancelling | |
| Noise Isolating | - | Yes | Bowers & Wilkins PX7 are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 10 - 30000 Hz | Bowers & Wilkins PX7 offer a larger frequency range than Poly Voyager 4220 USB-C. |
| Total Harmonic Distortion (THD) | - | <0.3% | |
| Sensitivity | 94 dB | 111 dB | Bowers & Wilkins PX7 have higher sensitivity than Poly Voyager 4220 USB-C. |
| Impedance | 32 Ohm | 20 Ohm | |
| Diaphragm | 32 mm | 43.6 mm | Bowers & Wilkins PX7 have a thicker diaphragm than Poly Voyager 4220 USB-C. |
| Features | SoundGuard DIGITAL Technology | - |
| MICROPHONE | Poly Voyager 4220 USB-C | Bowers & Wilkins PX7 |
|---|
| Form Factor | Headset microphone | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Microphone Operation Mode | Uni-directional | - | |
| Noise Cancelling | - | Yes | Bowers & Wilkins PX7 microphone can cancel out ambient noise. |
| Noise Cancelling Technology | - | CVC2 (Clear Voice Communication v2) | |
| Microphones Included | 2 | 6 | Bowers & Wilkins PX7 have a built-in microphone. |
| REMOTE CONTROL | Poly Voyager 4220 USB-C | Bowers & Wilkins PX7 |
|---|
| Controls | Mute, volume, answer/end, play/pause, next/previous track, reject call, redial, voice assistant | Volume control, on/off, answer/end, play/pause, next/previous track |
|---|
| CABLE | Poly Voyager 4220 USB-C | Bowers & Wilkins PX7 |
|---|
| Cable Type | - | Headphones cable - detachable - 1.2 m USB to USB-C cable - detachable - 1.2 m |
|
|---|---|---|---|
| Detachable Cable | - | Yes |
| FEATURES | Poly Voyager 4220 USB-C | Bowers & Wilkins PX7 |
|---|
| Features | Voice alerts | - | |
|---|---|---|---|
| Sensors | - | Proximity sensor |
| BATTERY AND CHARGING | Poly Voyager 4220 USB-C | Bowers & Wilkins PX7 |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | 360 mAh | - | |
| Battery Life | 15 hour(s) | 30 hour(s) | Bowers & Wilkins PX7 lasts longer on a single charge than the Poly Voyager 4220 USB-C. |
| Battery Life Details | Continuous playback: up to 15 hours Continuous talk: up to 12 hours |
Continuous playback (noise cancelling ON / Bluetooth): up to 30 hours Continuous playback (with 15 min charge): up to 5 hours |
|
| Standby Time | 312 hours | - | |
| Charging Time | 1.5 hour(s) | - |
| CONNECTIONS | Poly Voyager 4220 USB-C | Bowers & Wilkins PX7 |
|---|
| Connector Type | - | Headphones (mini-phone stereo 3.5 mm 4-pole) USB (USB Type-C) |
|---|
| OTHERS | Poly Voyager 4220 USB-C | Bowers & Wilkins PX7 |
|---|
| Included Accessories | Bluetooth USB adapter, charging stand | Carrying case | |
|---|---|---|---|
| Software Certification | Certified for Microsoft Teams | - | |
| Service & Support | - | Limited warranty - 2 years |
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