In depth comparison and review of Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) and Lenovo ThinkPad X1 Carbon (6th Gen) (20KH). 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.
| DESIGN AND DIMENSIONS | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Product Type | Tablet - with detachable keyboard | Ultrabook |
|---|---|---|
| Dimensions (WxDxH) | - | 32.35 cm x 21.71 cm x 1.595 cm |
| Dimensions (WxDxH) - tablet | 29.15 cm x 20.95 cm x 0.845 cm | - |
| Dimensions (WxDxH) / Weight Details | 29.15 cm x 20.95 cm x 0.845 cm / 770 g - tablet 29.15 cm x 20.95 cm x 1.415 cm / 1.07 kg - tablet with keyboard |
- |
| Weight | 770 g | 1.13 kg |
| Case Material | Glass-fibre reinforced plastic, magnesium alloy | Glass-fibre reinforced plastic, magnesium alloy, carbon fibre reinforced plastic, polyphenylene sulfide |
| Colour | Black | - |
| DISPLAY | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Screen Size (Type) | 12" - IPS | 14" |
|---|---|---|
| Touchscreen | Yes (10-point multi-touch) | - |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 2160 x 1440 (Full HD Plus) | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 3:2 | 16:9 |
| Image Brightness | 360 cd/m² | - |
| Features | Glossy, Corning Gorilla glass, WideView, anti-fingerprint | Anti-glare |
| PROCESSOR | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| CPU | Intel Core i5 (7th Gen) 7Y57 / 1.2 GHz | No CPU |
|---|---|---|
| Max Turbo Speed | 3.3 GHz | - |
| Number of Cores | Dual-Core | - |
| Cache | 4 MB | - |
| 64-bit Computing | Yes | - |
| Features | Integrated memory controller | - |
| MEMORY | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) | 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 Tablet (2nd Gen) (20JB) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD M.2 PCIe - TCG Opal Encryption, NVM Express (NVMe) - Intel | - |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 615 | - |
|---|---|---|
| Camera | Yes | Yes - 720p |
| Resolution | 8 Megapixel (rear), 2 Megapixel (front) | - |
| Camera Features | Rear camera with auto focus, rear camera with flash | - |
| Video Resolutions | 1080p | - |
| Sound | Stereo speakers, three microphones | Stereo speakers, dual array microphone |
| Codec | Realtek ALC3268 | Realtek ALC3286 |
| Compliant Standards | - | High Definition Audio, Dolby Audio Premium |
| COMMUNICATIONS | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Wireless | 802.11a/b/g/n/ac, Bluetooth 4.1 | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | M.2 Card | Intel Dual Band Wireless-AC 8265 - M.2 Card |
| Features | - | Gigabit Ethernet via optional Ethernet (RJ-45) adapter |
| WWAN |
|---|
| Generation | 4G | - |
|---|---|---|
| Technology | LTE Advanced | - |
| Controller | Sierra Wireless EM7455 | - |
| BATTERY | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Technology | 2-cell Lithium Ion | 3-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 37 Wh | 57 Wh |
| Battery Life | Up to 10 hours | Up to 19.3 hours |
| AC ADAPTER | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Input | AC 120/230 V (50/60 Hz) | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 45 Watt, 5 / 9 / 15 / 20 V | - |
| INPUT | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Type | Keyboard, digitizer, TrackPoint, digital pen, UltraNav | Keyboard, TrackPoint, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Volume control, multi-touch touchpad, buttonless touchpad | Spill-resistant, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Slots | 1 x Nano-SIM card (1 free) | - |
|---|---|---|
| Interfaces | USB-C 3.1 Gen 1 (Power Delivery 2.0) USB 3.1 Gen 1/USB 3.0 Mini DisplayPort Dock Headphone/microphone combo jack VGA (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 (microSD, microSDHC, microSDXC) | Yes (microSDXC UHS-II) |
| SOFTWARE | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Operating System (OS) | Windows 10 Pro 64-bit Edition | No operating system |
|---|
| MISCELLANEOUS | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) | Lenovo ThinkPad X1 Carbon (6th Gen) (20KH) |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Keyboard, ThinkPad Pen Pro, USB-C power adapter, pen holder | Power adapter |
| Cables Included | Mini DisplayPort-VGA adapter | - |
| Integrated Options | Ambient light sensor, 3-axis gyro sensor, digital compass, 3-axis accelerometer | - |
| Security | Trusted Platform Module (TPM 2.0) 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 | Reset switch, MIL-STD-810G tested | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested |
| Compliant Standards | RoHS, GREENGUARD, low halogen | RoHS |
| SAR Value | - | 1.514 W/kg (body), 1.514 W/kg (limb) |
| ENERGY STAR Certified | - | Yes |
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