In depth comparison and review of Lenovo ThinkPad X1 Carbon (2nd Gen) and Lenovo ThinkPad X1 Carbon (6th Gen) (20KG). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
Advantages and disadvantages of Lenovo ThinkPad X1 Carbon (2nd Gen) based on its technical characteristics, features, user experience, expert reviews and price level.
robust carbon-fiber construction
excellent keyboard feel
lightweight and portable
high-resolution display
good battery life
higher price point
no touch screen option
limited storage capacity
average graphics performance
DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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Product Type | Ultrabook | Ultrabook |
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Dimensions (WxDxH) | 33.1 cm x 22.65 cm x 1.772 cm | 32.35 cm x 21.71 cm x 1.595 cm |
Weight | 1.34 kg | 1.13 kg |
Case Material | Glass-fibre reinforced plastic, carbon fibre reinforced plastic, magnesium-aluminum alloy | Glass-fibre reinforced plastic, magnesium alloy, carbon fibre reinforced plastic, polyphenylene sulfide |
Colour | - | Black |
DISPLAY | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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Screen Size (Type) | 14" | 14" - IPS |
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LCD Backlight Technology | LED backlight | LED backlight |
Screen Resolution | 1600 x 900 (HD+) | 1920 x 1080 (Full HD) |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:9 |
Image Brightness | - | 300 cd/m² |
Colour Gamut | - | 72% |
Features | Anti-glare | Anti-glare |
PROCESSOR | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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CPU | Intel Core i7 (4th Gen) 4600U / 2.1 GHz | Intel Core i5 (7th Gen) 7300U / 2.6 GHz |
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Max Turbo Speed | 3.3 GHz | 3.5 GHz |
Number of Cores | Dual-Core | Dual-Core |
Cache | 4 MB | 3 MB |
64-bit Computing | Yes | Yes |
Features | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0, Intel Smart Cache | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0, Intel Smart Cache |
MEMORY | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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RAM | 8 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
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RAM Type | DDR3L SDRAM | LPDDR3 SDRAM |
Speed | 1600 MHz / PC3L-12800 | 1866 MHz |
Rated Speed | 1600 MHz | 2133 MHz |
STORAGE | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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Main Storage Size (HDD/SSD) | 120 GB SSD | 256 GB SSD M.2 PCIe - TCG Opal Encryption, NVM Express (NVMe) - Samsung |
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AUDIO & VIDEO | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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Graphics Processor (GPU) | Intel HD Graphics 4400 | Intel HD Graphics 620 |
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Camera | Yes - 720p | Yes - 720p |
Camera Features | Face tracking, gesture input support | ThinkShutter camera privacy |
Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
Codec | Realtek ALC3232 | Realtek ALC3286 |
Compliant Standards | High Definition Audio, Dolby Home Theater v4 | High Definition Audio, Dolby Audio Premium |
COMMUNICATIONS | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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Wireless | Bluetooth, Wi-Fi | 802.11a/b/g/n/ac, Bluetooth 4.1 |
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Wireless Controller | - | Intel Dual Band Wireless-AC 8265 - M.2 Card |
Network Interface | Gigabit Ethernet | Gigabit Ethernet |
Features | - | Gigabit Ethernet via optional Ethernet (RJ-45) adapter |
WWAN |
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Generation | WWAN upgradable | 4G |
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Technology | - | LTE Advanced |
Controller | - | FIBOCOM L850-GL - M.2 Card |
BATTERY | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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Technology | Lithium Ion | 3-cell Lithium Ion |
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Battery Capacity (Size) | - | 57 Wh |
Battery Life | - | Up to 19.3 hours |
AC ADAPTER | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
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Output | - | 45 Watt, 5 / 9 / 15 / 20 V |
INPUT | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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Type | Keyboard, TrackPoint, UltraNav | Keyboard, TrackPoint, UltraNav |
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Keyboard Backlight | Yes | Yes |
Features | Spill-resistant, multi-touch touchpad, adaptive keyboard | Spill-resistant, multi-touch touchpad, buttonless touchpad |
CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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Slots | - | 1 x Nano-SIM card (1 free) |
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Interfaces | USB 3.0 Mini DisplayPort HDMI Headphone/microphone combo jack Lenovo Ethernet extension connector OneLink connector USB 3.0 (Always On) |
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) |
SOFTWARE | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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Operating System (OS) | Windows 10 Home (Microsoft Authorized Refurbisher (MAR)) | Windows 10 Pro 64-bit Edition |
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MISCELLANEOUS | Lenovo ThinkPad X1 Carbon (2nd Gen) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KG) |
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Dockable | Yes | Yes |
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Included Accessories | Power adapter | USB-C power adapter |
Integrated Options | Ambient light sensor | - |
Security | Trusted Platform Module (TPM 1.2) Security Chip | 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, 1 USB 3.0 (Always On), voice input support, MIL-STD-810G tested | Administrator password, hard drive password, power-on password, MIL-STD-810G tested |
Compliant Standards | ISO 9001, ISO 14001, RoHS, 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 | - |