In depth comparison and review of Lenovo ThinkPad X1 Carbon (4th Gen) and Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB). 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 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Product Type | Ultrabook | Tablet - with detachable keyboard |
|---|---|---|
| Dimensions (WxDxH) | 33.3 cm x 22.9 cm x 1.645 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 | 1.17 kg | 770 g |
| Case Material | Magnesium alloy, carbon fibre reinforced plastic | Glass-fibre reinforced plastic, magnesium alloy |
| Colour | - | Black |
| DISPLAY | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Screen Size (Type) | 14" - IPS | 12" - IPS |
|---|---|---|
| Touchscreen | - | Yes (10-point multi-touch) |
| LCD Backlight Technology | LED backlight | LED backlight |
| Screen Resolution | 1920 x 1080 (Full HD) | 2160 x 1440 (Full HD Plus) |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 3:2 |
| Image Brightness | 300 cd/m² | 360 cd/m² |
| Features | Anti-glare | Glossy, Corning Gorilla glass, WideView, anti-fingerprint |
| PROCESSOR | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| CPU | Intel Core i5 (6th Gen) 6200U / 2.3 GHz | Intel Core i5 (7th Gen) 7Y57 / 1.2 GHz |
|---|---|---|
| Max Turbo Speed | 2.8 GHz | 3.3 GHz |
| Number of Cores | Dual-Core | Dual-Core |
| Cache | 3 MB | 4 MB |
| 64-bit Computing | Yes | Yes |
| Features | Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0, Intel Smart Cache | Integrated memory controller |
| MEMORY | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| RAM | 8 GB (provided memory is soldered) | 8 GB (provided memory is soldered) |
|---|---|---|
| RAM Type | LPDDR3 SDRAM | LPDDR3 SDRAM |
| Speed | 1866 MHz | 1866 MHz |
| Rated Speed | 1866 MHz | 1866 MHz |
| STORAGE | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Main Storage Size (HDD/SSD) | 256 GB SSD | 256 GB SSD M.2 PCIe - TCG Opal Encryption, NVM Express (NVMe) - Intel |
|---|
| AUDIO & VIDEO | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Graphics Processor (GPU) | Intel HD Graphics 520 | Intel HD Graphics 615 |
|---|---|---|
| Camera | Yes - 720p | Yes |
| Resolution | - | 8 Megapixel (rear), 2 Megapixel (front) |
| Camera Features | - | Rear camera with auto focus, rear camera with flash |
| Video Resolutions | - | 1080p |
| Sound | Stereo speakers, dual array microphone | Stereo speakers, three microphones |
| Codec | CX11852 | Realtek ALC3268 |
| Compliant Standards | High Definition Audio | - |
| COMMUNICATIONS | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Wireless | - | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | - | M.2 Card |
| Network Interface | Gigabit Ethernet | - |
| WWAN |
|---|
| Generation | - | 4G |
|---|---|---|
| Technology | - | LTE Advanced |
| Controller | - | Sierra Wireless EM7455 |
| BATTERY | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Technology | 4-cell lithium polymer | 2-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 52 Wh | 37 Wh |
| Battery Life | Up to 11 hours | Up to 10 hours |
| AC ADAPTER | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| 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 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Type | Keyboard, TrackPoint, UltraNav | Keyboard, digitizer, TrackPoint, digital pen, UltraNav |
|---|---|---|
| Keyboard Backlight | Yes | Yes |
| Features | Spill-resistant, multi-touch touchpad, buttonless touchpad | Volume control, multi-touch touchpad, buttonless touchpad |
| CONNECTIONS & EXPANSIONS | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Slots | - | 1 x Nano-SIM card (1 free) |
|---|---|---|
| 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-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) |
| Memory Card Reader | Yes (microSDXC UHS-II) | Yes (microSD, microSDHC, microSDXC) |
| SOFTWARE | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Operating System (OS) | Windows 10 Pro (Microsoft Authorized Refurbisher (MAR)) | Windows 10 Pro 64-bit Edition |
|---|
| MISCELLANEOUS | Lenovo ThinkPad X1 Carbon (4th Gen) | Lenovo ThinkPad X1 Tablet (2nd Gen) (20JB) |
|---|
| Dockable | Yes | Yes |
|---|---|---|
| Included Accessories | Power adapter | Keyboard, ThinkPad Pen Pro, USB-C power adapter, pen holder |
| 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 1.2) Security Chip, fingerprint reader | Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
| Security Slot Type | Kensington security slot | Kensington 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 | Reset switch, MIL-STD-810G tested |
| Compliant Standards | ISO 9001, ISO 14001, RoHS, GREENGUARD, ISO 27001 | RoHS, GREENGUARD, low halogen |
| ENERGY STAR Certified | Yes | - |
| Manufacturer Warranty | Limited warranty - 2 years - pick-up and return | - |
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