In depth comparison and review of Lenovo ThinkPad X1 and Sennheiser HMDC 27. 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 | Lenovo ThinkPad X1 | Sennheiser HMDC 27 |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - wired | |
|---|---|---|---|
| Weight | 195 g | 240 g | Lenovo ThinkPad X1 are lighter than Lenovo ThinkPad X1 headphones. |
| Recommended Use | - | Professional audio |
| SOUND QUALITY | Lenovo ThinkPad X1 | Sennheiser HMDC 27 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Adjustable Headband | Yes | - | |
| Foldable | Yes | - | Lenovo ThinkPad X1 can be folded. |
| Connectivity Technology | Wireless | Wired | |
| 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 | Environmental Noise Cancellation (ENC) / Hybrid ANC | - | |
| Sound Output Mode | - | Stereo | |
| Frequency Response | 20 - 20000 Hz | 8 - 18000 Hz | Lenovo ThinkPad X1 offer a larger frequency range than Sennheiser HMDC 27. |
| Max Input Power | 30 mW | - | |
| Total Harmonic Distortion (THD) | - | <0.1% | |
| Sensitivity | 111 dB | - | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | - | 128 dB | |
| 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. |
| MICROPHONE | Lenovo ThinkPad X1 | Sennheiser HMDC 27 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Technology | - | Dynamic | |
| Microphone Operation Mode | - | Hypercardioid | |
| Noise Cancelling | Yes | - | Lenovo ThinkPad X1 microphone can cancel out ambient noise. |
| Frequency Response | 50 - 8000 Hz | 40 - 18000 Hz | Sennheiser HMDC 27 offer a larger microphone frequency range than Lenovo ThinkPad X1. |
| Dynamic Range | 95 dB | - | |
| Signal-To-Noise Ratio | 19 dB | - |
| CABLE | Lenovo ThinkPad X1 | Sennheiser HMDC 27 |
|---|
| Cable Type | USB-C to USB-A cable - 1.3 m USB-C cable - 1.3 m |
- |
|---|
| FEATURES | Lenovo ThinkPad X1 | Sennheiser HMDC 27 |
|---|
| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | Lenovo ThinkPad X1 | Sennheiser HMDC 27 |
|---|
| 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 | Lenovo ThinkPad X1 | Sennheiser HMDC 27 |
|---|
| Connector Type | Headphones (24 pin USB-C) | - |
|---|
| OTHERS | Lenovo ThinkPad X1 | Sennheiser HMDC 27 |
|---|
| Included Accessories | Carrying case | Wind screen, cable clip, headband padding | |
|---|---|---|---|
| Service & Support | Limited warranty - 1 year | - |
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