Detailed comparison and review of Koss UR 23i 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 | Koss UR 23i | Lenovo ThinkPad X1 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | - | 195 g | |
| Colour | White | Black | - | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | Koss UR 23i | Lenovo ThinkPad X1 |
|---|
| Headphones Form Factor | Full size | 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 | Lenovo ThinkPad X1 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 | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | - | 30 mW | |
| Sensitivity | 94 dB | 111 dB | Lenovo ThinkPad X1 have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | 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. |
| MICROPHONE | Koss UR 23i | Lenovo ThinkPad X1 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Noise Cancelling | - | Yes | Lenovo ThinkPad X1 microphone can cancel out ambient noise. |
| Frequency Response | - | 50 - 8000 Hz | |
| Dynamic Range | - | 95 dB | |
| Signal-To-Noise Ratio | - | 19 dB |
| CABLE | Koss UR 23i | Lenovo ThinkPad X1 |
|---|
| Cable Type | Headphones cable - 1.22 m | USB-C to USB-A cable - 1.3 m USB-C cable - 1.3 m |
|---|
| BATTERY AND CHARGING | Koss UR 23i | 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 | Koss UR 23i | Lenovo ThinkPad X1 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headphones (24 pin USB-C) |
|---|
| OTHERS | Koss UR 23i | Lenovo ThinkPad X1 |
|---|
| Included Accessories | - | Carrying case | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | Limited warranty - 1 year |
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