Side by side comparison and review of Lenovo ThinkPad X1 Carbon (4th Gen) and Lenovo ThinkPad X1 Carbon (6th Gen) (20KH). Compare dimensions, processors, batteries, storage capacities and other key specifications and features to simplify the choice of your perfect laptop. Our goal is to make it easier for you to decide on the laptop that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Product Type | Ultrabook | Ultrabook |
|---|---|---|
| Dimensions (WxDxH) | 33.3 cm x 22.9 cm x 1.645 cm | 32.35 cm x 21.71 cm x 1.595 cm |
| Weight | 1.17 kg | 1.13 kg |
| Case Material | Magnesium alloy, carbon fibre reinforced plastic | Glass-fibre reinforced plastic, magnesium alloy, carbon fibre reinforced plastic, polyphenylene sulfide |
| DISPLAY | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Screen Size (Type) | 14" - IPS | 14" |
|---|---|---|
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | 300 cd/m² | - |
| Features | Anti-glare | Anti-glare |
| PROCESSOR | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| CPU | Intel Core i5 (6th Gen) 6200U / 2.3 GHz | No CPU |
|---|---|---|
| Max Turbo Speed | 2.8 GHz | - |
| Number of Cores | Dual-Core | - |
| Cache | 3 MB | - |
| 64-bit Computing | Yes | - |
| Features | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0, Intel Smart Cache | - |
| MEMORY | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| RAM | 8 GB (provided memory is soldered) | (provided memory is soldered) |
|---|---|---|
| RAM Type | LPDDR3 SDRAM | LPDDR3 SDRAM |
| Speed | 1866 MHz | 2133 MHz |
| Rated Speed | 1866 MHz | 2133 MHz |
| STORAGE | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD | - |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 520 | - |
|---|---|---|
| Camera | Yes - 720p | Yes - 720p |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
| Codec | CX11852 | Realtek ALC3286 |
| Compliant Standards | High Definition Audio | High Definition Audio, Dolby Audio Premium |
| COMMUNICATIONS | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Wireless | - | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | - | Intel Dual Band Wireless-AC 8265 - M.2 Card |
| Network Interface | Gigabit Ethernet | - |
| Features | - | Gigabit Ethernet via optional Ethernet (RJ-45) adapter |
| BATTERY | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Technology | 4-cell lithium polymer | 3-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 52 Wh | 57 Wh |
| Battery Life | Up to 11 hours | Up to 19.3 hours |
| AC ADAPTER | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|
| INPUT | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad, buttonless touchpad | Spill-resistant, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Interfaces | 2 x USB 3.0 Mini DisplayPort HDMI OneLink+ connector Headphone/microphone combo jack USB 3.0 (Always On) LAN (on supplied adapter) |
USB 3.1 Gen 1 USB 3.1 Gen 1 (Always On) 2 x USB-C 3.1 Gen 2 (supports Thunderbolt 3) HDMI Headphone/microphone combo jack Lenovo Ethernet extension connector Dock |
|---|---|---|
| Memory Card Reader | Yes (microSDXC UHS-II) | Yes (microSDXC UHS-II) |
| SOFTWARE | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Operating System (OS) | Windows 10 Pro (Microsoft Authorized Refurbisher (MAR)) | No operating system |
|---|
| MISCELLANEOUS | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Power adapter | Power adapter |
| Security | Trusted Platform Module (TPM 1.2) Security Chip, fingerprint reader | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | Kensington security slot | Kensington mini security slot |
| Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
| Features | Administrator password, hard drive password, power-on password, RapidCharge, reset switch, ThinkEngine, MIL-STD-810G tested | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested |
| Compliant Standards | ISO 9001, ISO 14001, RoHS, GREENGUARD, ISO 27001 | RoHS |
| SAR Value | - | 1.514 W/kg (body), 1.514 W/kg (limb) |
| ENERGY STAR Certified | Yes | Yes |
| Manufacturer Warranty | Limited warranty - 2 years - pick-up and return | - |
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