In depth comparison and review of Poly Voyager 4220 Office (UC Series) and Sennheiser HD 450BT. 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) | Sennheiser HD 450BT |
|---|
| Product Type | Headset - Bluetooth - wireless - USB-C | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Series | UC Series | - | |
| Weight | 150 g | 238 g | Poly Voyager 4220 Office (UC Series) are lighter than Poly Voyager 4220 Office (UC Series) headphones. |
| Colour | - | Black | White | |
| Bluetooth Range (Operating Distance) | 30 m | - |
| SOUND QUALITY | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 450BT |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | - | Yes | Sennheiser HD 450BT can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.0 | Sennheiser HD 450BT 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, aptX, apt-X LL | |
| Active Noise Cancelling | - | Yes | Sennheiser HD 450BT are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 18 - 22000 Hz | Sennheiser HD 450BT offer a larger frequency range than Poly Voyager 4220 Office (UC Series). |
| Total Harmonic Distortion (THD) | - | <0.3% | |
| Sensitivity | 94 dB | - | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | - | 108 dB | |
| Diaphragm | 32 mm | - | |
| Features | SoundGuard Technology | - |
| MICROPHONE | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 450BT |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Microphone Operation Mode | Uni-directional | Beamforming | |
| Frequency Response | - | 80 - 6000 Hz | |
| Microphones Included | 2 | 2 | Both headphones have a built-in microphone. |
| REMOTE CONTROL | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 450BT |
|---|
| Controls | Mute, volume, answer/end, play/pause, next/previous track | - |
|---|
| CABLE | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 450BT |
|---|
| Cable Type | - | Audio cable - detachable USB-C charge cable - detachable |
|---|
| FEATURES | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 450BT |
|---|
| Features | Voice alerts | - |
|---|
| BATTERY AND CHARGING | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 450BT |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | 360 mAh | 600 mAh | Sennheiser HD 450BT have a higher battery capacity than Poly Voyager 4220 Office (UC Series). |
| Battery Life | 12 hour(s) | 30 hours | Sennheiser HD 450BT 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 |
- | |
| Standby Time | 312 hours | - | |
| Charging Time | 1.5 hour(s) | 2 hours | Poly Voyager 4220 Office (UC Series) recharge faster than Poly Voyager 4220 Office (UC Series). |
| OTHERS | Poly Voyager 4220 Office (UC Series) | Sennheiser HD 450BT |
|---|
| Included Accessories | Wireless headset system base, Bluetooth USB-C adapter | Carrying case | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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