Detailed comparison and review of Poly Blackwire C725-UC and Lenovo ThinkPad X1. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Poly Blackwire C725-UC | Lenovo ThinkPad X1 |
|---|
| Product Type | Headset - wired - USB | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Series | 700 Series | - | |
| Weight | - | 195 g | |
| Recommended Use | Computer | - |
| SOUND QUALITY | Poly Blackwire C725-UC | Lenovo ThinkPad X1 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Adjustable Headband | - | Yes | |
| Foldable | - | Yes | Lenovo ThinkPad X1 can be folded. |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.0 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX, apt-X LL, mSBC | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | SoundGuard | Environmental Noise Cancellation (ENC) / Hybrid ANC | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | - | 30 mW | |
| Sensitivity | - | 111 dB | |
| Impedance | - | 32 Ohm | |
| Diaphragm | - | 40 mm | |
| Dynamic Range | - | 110 dB | |
| Simultaneously Connectable Devices Qty (Multipoint) | - | 2 | Lenovo ThinkPad X1 have the ability to connect to multiple devices simultaneously. |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire C725-UC | Lenovo ThinkPad X1 |
|---|
| Form Factor | Headset microphone | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Noise Cancelling | - | Yes | Lenovo ThinkPad X1 microphone can cancel out ambient noise. |
| Frequency Response | 100 - 8000 Hz | 50 - 8000 Hz | Lenovo ThinkPad X1 offer a larger microphone frequency range than Poly Blackwire C725-UC. |
| Dynamic Range | - | 95 dB | |
| Signal-To-Noise Ratio | - | 19 dB |
| REMOTE CONTROL | Poly Blackwire C725-UC | Lenovo ThinkPad X1 |
|---|
| Controls | Mute, volume, answer/end | - |
|---|
| CABLE | Poly Blackwire C725-UC | Lenovo ThinkPad X1 |
|---|
| Cable Type | USB cable - 2.04 m | USB-C to USB-A cable - 1.3 m USB-C cable - 1.3 m |
|
|---|---|---|---|
| Cable Length | 2.04 m | - |
| BATTERY AND CHARGING | Poly Blackwire C725-UC | Lenovo ThinkPad X1 |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | - | 20 hours | |
| Battery Life Details | - | (noise cancelling OFF): up to 20 hours Continuous playback: up to 15 hours |
|
| Charging Time | - | 2 hours |
| CONNECTIONS | Poly Blackwire C725-UC | Lenovo ThinkPad X1 |
|---|
| Connector Type | USB (4 PIN USB Type A) | Headphones (24 pin USB-C) |
|---|
| OTHERS | Poly Blackwire C725-UC | Lenovo ThinkPad X1 |
|---|
| Included Accessories | Carrying case | Carrying case | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 1 year |
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