Side by side comparison and review of Poly Blackwire 325 and Bose QuietComfort 45. 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 Blackwire 325 | Bose QuietComfort 45 |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Series | 300 Series | - | |
| Height | - | 18.4 cm | |
| Width | - | 15.2 cm | |
| Depth | - | 7.62 cm | |
| Weight | - | 241 g | |
| Dimensions & Weight Details | - | Case: 14.5 cm x 5.08 cm x 21.1 cm / 188 g | |
| Colour | - | Black | Smoke white | Triple black | |
| Headband Material | Metal | - | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 9 m |
| SOUND QUALITY | Poly Blackwire 325 | Bose QuietComfort 45 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.1 | |
| Active Noise Cancelling | - | Yes | Bose QuietComfort 45 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Acoustic Noise Cancelling | |
| Noise Isolating | - | Yes | Bose QuietComfort 45 are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire 325 | Bose QuietComfort 45 |
|---|
| Type | Boom | - | |
|---|---|---|---|
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Poly Blackwire 325 | Bose QuietComfort 45 |
|---|
| Controls | Mute, volume, answer/end | - |
|---|
| CABLE | Poly Blackwire 325 | Bose QuietComfort 45 |
|---|
| Cable Type | Headset cable - 2.13 m | USB-C to USB-A cable - detachable - 30 cm | |
|---|---|---|---|
| Cable Length | 2.13 m | - |
| FEATURES | Poly Blackwire 325 | Bose QuietComfort 45 |
|---|
| Additional Functions | DSP | - |
|---|
| BATTERY AND CHARGING | Poly Blackwire 325 | Bose QuietComfort 45 |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 460 mAh | |
| Battery Life | - | 24 hour(s) | |
| Charging Time | - | 2.5 hour(s) |
| CONNECTIONS | Poly Blackwire 325 | Bose QuietComfort 45 |
|---|
| Connector Type | USB (4 PIN USB Type A) Headphones (mini-phone 3.5 mm 4-pole) |
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|---|
| OTHERS | Poly Blackwire 325 | Bose QuietComfort 45 |
|---|
| Included Accessories | - | Carrying case | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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