Side by side comparison and review of Poly Voyager 4220 UC and Sennheiser HD 450BT. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Poly Voyager 4220 UC | Sennheiser HD 450BT |
|---|
| Product Type | Headset - Bluetooth - wireless | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Series | UC Series | - | |
| Weight | 150 g | 238 g | Poly Voyager 4220 UC are lighter than Poly Voyager 4220 UC headphones. |
| Colour | - | Black | White | |
| Bluetooth Range (Operating Distance) | 30 m | - |
| SOUND QUALITY | Poly Voyager 4220 UC | 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 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), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC, mSBC | 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 UC. |
| Total Harmonic Distortion (THD) | - | <0.3% | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | - | 108 dB | |
| Diaphragm | 32 mm | - | |
| Features | SoundGuard DIGITAL Technology | - |
| MICROPHONE | Poly Voyager 4220 UC | Sennheiser HD 450BT |
|---|
| Form Factor | Headset microphone | 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 UC | Sennheiser HD 450BT |
|---|
| Controls | Mute, volume, answer/end, play/pause, next/previous track, reject call, redial, voice assistant | - |
|---|
| CABLE | Poly Voyager 4220 UC | Sennheiser HD 450BT |
|---|
| Cable Type | - | Audio cable - detachable USB-C charge cable - detachable |
|---|
| FEATURES | Poly Voyager 4220 UC | Sennheiser HD 450BT |
|---|
| Features | Voice alerts | - | |
|---|---|---|---|
| Intelligent Assistant | Alexa | - |
| BATTERY AND CHARGING | Poly Voyager 4220 UC | 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 UC. |
| Battery Life | 15 hour(s) | 30 hours | Sennheiser HD 450BT lasts longer on a single charge than the Poly Voyager 4220 UC. |
| 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 UC recharge faster than Poly Voyager 4220 UC. |
| CONNECTIONS | Poly Voyager 4220 UC | Sennheiser HD 450BT |
|---|
| Connector Type | Wireless adapter (4 PIN USB Type A) | - |
|---|
| OTHERS | Poly Voyager 4220 UC | Sennheiser HD 450BT |
|---|
| Included Accessories | Bluetooth USB adapter, charging stand | Carrying case | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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